Obstetric Anesthesiology Research

Advancing Obstetric and Perinatal Anesthetic Care

Research Mission Statement

To advance knowledge in the field of obstetric anesthesiology and peripartum care through clinical, epidemiological, and outcomes-based research.

Research Vision Statement

To optimize and personalize maternal care provided by obstetric anesthesiologists.

Our Research Faculty

Our faculty are internationally recognized experts in obstetric anesthesiology.

We aim to advance the health and well-being of mothers by:

Ensuring each woman obtains high-quality pain relief during and after her delivery.
Identifying approaches for preventing and treating postpartum hemorrhage.
Expanding knowledge related to women’s recovery after delivery.

Featured Researchers

Brendan Carvalho, MD
CAP Profile

Alex Butwick, MD
CAP Profile

Pervez Sultan, MD
CAP Profile

Brian Bateman,MD,MSc
CAP Profile

Jessica Ansari, MD, MS
CAP Profile

How our research has changed practice

Research from our group has been instrumental in advancing maternal and peripartum care. Through our research, we have developed new protocols and approaches for preventing and managing postpartum hemorrhage, enhanced methods to manage mothers’ pain during labor and after cesarean delivery, improved knowledge of how drugs behave in the peripartum setting, and designed instruments to measure recovery after childbirth.

Research Recognition

Our faculty have gained recognition for their outstanding contributions to innovation and knowledge in peripartum care and obstetric anesthesiology. Our work has received funding support from the National Institute for Health, Stanford Maternal & Child Health Research Institute and industry partners. Our research has been recognized with the receipt of numerous scientific awards from several international medical societies.

At the Society of Obstetric Anesthesiology and Perinatology annual scientific meetings, the most prestigious obstetric anesthesia meeting in the world, we have won the Best Scientific Paper award on 3 occasions, and been a finalist for this award on 7 occasions. Our trainee-mentored research has been consistently recognized with an unprecedented 13 Resident/Fellow Research Presentation awards in the past 18 years. We have also received scientific meeting research awards from the American Society of Anesthesiology, Obstetric Anaesthetists’ Association of Great Britain, and the Canadian Anesthesiologists' Society.

Our work has been published in high-impact scientific journals on numerous occasions (see all publications). We have produced and contributed towards several national guidelines and consensus statements produced by the Society of Obstetric Anesthesiology and Perinatology, the American Heart Association and the World Health Organization.

Our obstetric anesthesia facility was the first in the nation to be designated as a Society for Obstetric Anesthesia and Perinatology Center of Excellence, and Brendan Carvalho was appointed as President of the Society for Obstetric Anesthesia and Perinatology between 2017 and 2018.

Recent Publications

Professor of Anesthesiology, Perioperative and Pain Medicine (Adult MSD) and, by courtesy, of Obstetrics and Gynecology (Maternal Fetal Medicine)

Publications

Physical activity among pregnant inpatients and outpatients and associations with anxiety. European journal of obstetrics, gynecology, and reproductive biology Panelli, D. M., Miller, H. E., Simpson, S. L., Hurtado, J., Shu, C. H., Boncompagni, A. C., Chueh, J., Carvalho, B., Sultan, P., Aghaeepour, N., Druzin, M. L. 2024; 297: 8-14 More

Abstract

Physical activity is linked to lower anxiety, but little is known about the association during pregnancy. This is especially important for antepartum inpatients, who are known to have increased anxiety yet may not be able to achieve target levels of physical activity during hospitalization. We compared physical activity metrics between pregnant inpatients and outpatients and explored correlations with anxiety.This was a prospective cohort between 2021 and 2022 of pregnant people aged 18-55 years carrying singleton gestations ≥ 16 weeks. Three exposure groups were matched for gestational age: 1) outpatients from general obstetric clinics; 2) outpatients from high-risk Maternal-Fetal Medicine obstetric clinics; and 3) antepartum inpatients. Participants wore Actigraph GT9X Link accelerometer watches for up to 7 days to measure physical activity. The primary outcome was mean daily step count. Secondary outcomes were metabolic equivalent tasks (METs), hourly kilocalories (kcals), moderate to vigorous physical activity (MVPA) bursts, and anxiety (State-Trait Anxiety Inventory [STAI]). Step counts were compared using multivariable generalized estimating equations adjusting for maternal age, body-mass index, and insurance type as a socioeconomic construct, accounting for within-group clustering by gestational age. Spearman correlations were used to correlate anxiety scores with step counts.58 participants were analyzed. Compared to outpatients, inpatients had significantly lower mean daily steps (primary outcome, adjusted beta -2185, 95 % confidence interval [CI] -3146, -1224, p < 0.01), METs (adjusted beta -0.18, 95 % CI -0.23, -0.13, p < 0.01), MVPAs (adjusted beta -38.2, 95 % CI -52.3, -24.1, p < 0.01), and kcals (adjusted beta -222.9, 95 % CI -438.0, -7.8, p = 0.04). Over the course of the week, steps progressively decreased for inpatients (p-interaction 0.01) but not for either of the outpatient groups. Among the entire cohort, lower step counts correlated with higher anxiety scores (r = 0.30, p = 0.02).We present antenatal population norms and variance for step counts, metabolic equivalent tasks, moderate to vigorous physical activity bursts, and kcals, as well as correlations with anxiety. Antepartum inpatients had significantly lower physical activity than outpatients, and lower step counts correlated with higher anxiety levels. These results highlight the need for physical activity interventions, particularly for hospitalized pregnant people.

View details for DOI 10.1016/j.ejogrb.2024.03.033

View details for PubMedID 38554481
Continuous wound infusion catheter as part of a multimodal analgesia regimen for post-Caesarean delivery pain: a quality improvement impact study. BJA open Fowler, C., Stockert, E., Hoang, D., Guo, N., Riley, E., Sultan, P., Carvalho, B. 2024; 9: 100242 More

Abstract

The role of continuous wound infusion catheters as part of a multimodal analgesia strategy after Caesarean delivery is unclear. We introduced continuous wound infusion catheters to our multimodal analgesia regimen to evaluate the impact on analgesic outcomes after Caesarean delivery.After institutional review board (IRB) approval, a 4-month practice change was instituted as a quality improvement initiative. In addition to multimodal analgesia, continuous wound infusion catheters for up to 3 days were offered on alternate weeks for all women undergoing Caesarean deliveries. The primary outcome was postoperative in-hospital opioid consumption. Secondary outcomes were static and dynamic pain scores at 24 and 72 h, time until first analgesic request, opioid-related side-effects, length of stay, satisfaction (0-100%), and continuous wound infusion catheter-related complications.All women scheduled for Caesarean delivery (n=139) in the 4-month period were included in the analysis, with 70 women receiving continuous wound infusion catheters, and 69 in the control group. Opioid consumption (continuous wound infusion catheter group 11.3 [7.5-61.9] mg morphine equivalents vs control group 30.0 [11.3-48.8] mg morphine equivalents), pain scores (except 24 h resting pain scores which were higher in the control group 2 [1-3] vs 1.5 [0-3] in the continous wound infusion catheters group; P=0.05), side-effects, length of stay, and complications were similar between groups. Satisfaction scores at 24 h were higher with continuous wound infusion catheters (100% [91-100%] vs 90% [86-100%]; P=0.003) with no differences at 72 h. One patient demonstrated symptoms of systemic local anaesthetic toxicity which resolved without significant harm.The addition of continuous wound infusion catheters to a multimodal analgesia regimen for post-Caesarean delivery pain management demonstrated minimal clinically significant analgesic benefits. Future studies are needed to explore the use of continuous wound infusion catheters in populations that may benefit most from this intervention.

View details for DOI 10.1016/j.bjao.2023.100242

View details for PubMedID 38179106

View details for PubMedCentralID PMC10761342
Ethnicity, socio-economic deprivation and postpartum outcomes following caesarean delivery: a multicentre cohort study. Anaesthesia O'Carroll, J. E., Zucco, L., Warwick, E., Radcliffe, G., Moonesinghe, S. R., El-Boghdadly, K., Guo, N., Carvalho, B., Sultan, P. 2024 More

Abstract

Disparities relating to postpartum recovery outcomes in different socio-economic and racial ethnic groups are underexplored. We conducted a planned analysis of a large prospective caesarean delivery cohort to explore the relationship between ethnicity, socio-economic status and postpartum recovery. Eligible patients were enrolled and baseline demographic, obstetric and medical history data were collected 18 h and 30 h following delivery. Patients completed postpartum quality of life and recovery measures in person on day 1 (EuroQoL EQ-5D-5L, including global health visual analogue scale; Obstetric Quality of Recovery-10 item score; and pain scores) and by telephone between day 28 and day 32 postpartum (EQ-5D-5L and pain scores). Socio-economic group was determined according to the Index of Multiple Deprivation quintile of each patient's usual place of residence. Data from 1000 patients who underwent caesarean delivery were included. There were more patients of Asian, Black and mixed ethnicity in the more deprived quintiles. Patients of White ethnicities had shorter postpartum duration of hospital stay compared with patients of Asian and Black ethnicities (35 (28-56 [18-513]) h vs. 44 (31-71 [19-465]) h vs. 49 (33-75 [23-189]) h, respectively. In adjusted models at day 30, patients of Asian ethnicity had a significantly greater risk of moderate to severe pain (numerical rating scale ≥ 4) at rest and on movement (odds ratio (95%CI) 2.42 (1.24-4.74) and 2.32 (1.40-3.87)), respectively). There were no differences in readmission rates or incidence of complications between groups. Patients from White ethnic backgrounds experience shorter postpartum duration of stay compared with patients from Asian and Black ethnic groups. Ethnic background impacts pain scores and recovery at day 1 postpartum and following hospital discharge, even after adjusting for socio-economic group. Further work is required to understand the underlying factors driving differences in pain and recovery and to develop strategies to reduce disparities in obstetric patients.

View details for DOI 10.1111/anae.16241

View details for PubMedID 38359531
A Cost and Waste-Savings Comparison Between Single-Use and Reusable Pulse Oximetry Sensors Across US Operating Rooms. Anesthesia and analgesia Stockert, E. W., Carvalho, B., Sun, E. C. 2024 More

Abstract

BACKGROUND: Operating room (OR) expenditures and waste generation are a priority, with several professional societies recommending the use of reprocessed or reusable equipment where feasible. The aim of this analysis was to compare single-use pulse oximetry sensor stickers ("single-use stickers") versus reusable pulse oximetry sensor clips ("reusable clips") in terms of annual cost savings and waste generation across all ORs nationally.METHODS: This study did not involve patient data or research on human subjects. As such, it did not meet the requirements for institutional review board approval. An economic model was used to compare the relative costs and waste generation from using single-use stickers versus reusable clips. This model took into account: (1) the relative prices of single-use stickers and reusable clips, (2) the number of surgeries and ORs nationwide, (3) the workload burden of cleaning the reusable clips, and (4) the costs of capital for single-use stickers and reusable clips. In addition, we also estimated differences in waste production based on the raw weight plus unit packaging of single-use stickers and reusable clips that would be disposed of over the course of the year, without any recycling interventions. Estimated savings were rounded to the nearest
The Accuracy of ChatGPT-Generated Responses in Answering Commonly Asked Patient Questions About Labor Epidurals: A Survey-Based Study. Anesthesia and analgesia Mootz, A. A., Carvalho, B., Sultan, P., Nguyen, T. P., Reale, S. C. 2024 More

View details for DOI 10.1213/ANE.0000000000006801

View details for PubMedID 38180897

see all 368 publications

Professor of Anesthesiology, Perioperative and Pain Medicine (OB)

Publications

Validity of ICD-10 diagnosis codes for placenta accreta spectrum disorders. Paediatric and perinatal epidemiology Jotwani, A. R., Lyell, D. J., Butwick, A. J., Rwigi, W., Leonard, S. A. 2024 More

Abstract

BACKGROUND: The 10th revision of the International Classification of Diseases, Clinical Modification (ICD-10) includes diagnosis codes for placenta accreta spectrum for the first time. These codes could enable valuable research and surveillance of placenta accreta spectrum, a life-threatening pregnancy complication that is increasing in incidence.OBJECTIVE: We sought to evaluate the validity of placenta accreta spectrum diagnosis codes that were introduced in ICD-10 and assess contributing factors to incorrect code assignments.METHODS: We calculated sensitivity, specificity, positive predictive value and negative predictive value of the ICD-10 placenta accreta spectrum code assignments after reviewing medical records from October 2015 to March 2020 at a quaternary obstetric centre. Histopathologic diagnosis was considered the gold standard.RESULTS: Among 22,345 patients, 104 (0.46%) had an ICD-10 code for placenta accreta spectrum and 51 (0.23%) had a histopathologic diagnosis. ICD-10 codes had a sensitivity of 0.71 (95% CI 0.56, 0.83), specificity of 0.98 (95% CI 0.93, 1.00), positive predictive value of 0.61 (95% CI 0.48, 0.72) and negative predictive value of 1.00 (95% CI 0.96, 1.00). The sensitivities of the ICD-10 codes for placenta accreta spectrum subtypes- accreta, increta and percreta-were 0.55 (95% CI 0.31, 0.78), 0.33 (95% CI 0.12, 0.62) and 0.56 (95% CI 0.31, 0.78), respectively. Cases with incorrect code assignment were less morbid than cases with correct code assignment, with a lower incidence of hysterectomy at delivery (17% vs 100%), blood transfusion (26% vs 75%) and admission to the intensive care unit (0% vs 53%). Primary reasons for code misassignment included code assigned to cases of occult placenta accreta (35%) or to cases with clinical evidence of placental adherence without histopatholic diagnostic (35%) features.CONCLUSION: These findings from a quaternary obstetric centre suggest that ICD-10 codes may be useful for research and surveillance of placenta accreta spectrum, but researchers should be aware of likely substantial false positive cases.

View details for DOI 10.1111/ppe.13076

View details for PubMedID 38514907
The role of viscoelastic hemostatic assays for postpartum hemorrhage management and bedside intrapartum care. American journal of obstetrics and gynecology Katz, D., Farber, M., Getrajdman, C., Hamburger, J., Reale, S., Butwick, A. 2024; 230 (3S): S1089-S1106 More

Abstract

Viscoelastic hemostatic assays are point-of-care devices that assess coagulation and fibrinolysis in whole blood samples. These technologies provide numeric and visual information of clot initiation, clot strength, and clot lysis under low-shear conditions, and have been used in a variety of clinical settings and subpopulations, including trauma, cardiac surgery, and obstetrics. Emerging data indicate that these devices are useful for detecting important coagulation defects during major postpartum hemorrhage (especially low plasma fibrinogen concentration [hypofibrinogenemia]) and informing clinical decision-making for blood product use. Data from observational studies suggest that, compared with traditional formulaic approaches to transfusion management, targeted or goal-directed transfusion approaches using data from viscoelastic hemostatic assays are associated with reduced hemorrhage-related morbidity and lower blood product requirement. Viscoelastic hemostatic assays can also be used to identify and treat coagulation defects in patients with inherited or acquired coagulation disorders, such as factor XI deficiency or immune-mediated thrombocytopenia, and to assess hemostatic profiles of patients prescribed anticoagulant medications to mitigate the risk of epidural hematoma after neuraxial anesthesia and postpartum hemorrhage after delivery.

View details for DOI 10.1016/j.ajog.2022.09.008

View details for PubMedID 38462250
Variation in Hospital Neuraxial Labor Analgesia Rates in California. Anesthesiology Parameshwar, P., Guo, N., Bentley, J., Main, E., Singer, S. J., Peden, C. J., Morris, T., Ansari, J., Butwick, A. J. 2024 More

Abstract

Neuraxial analgesia provides effective pain relief during labor. However, it is unclear whether neuraxial analgesia prevalence differs across US hospitals. Our aim was to assess hospital variation in neuraxial analgesia prevalence in California.A retrospective cross-sectional study analyzed birthing patients who underwent labor in 200 California hospitals from 2016 to 2020. The primary exposure was the delivery hospital. The outcomes were hospital neuraxial analgesia prevalence and between-hospital variability, before and after adjustment for patient and hospital factors. Median odds ratio and intraclass correlation coefficients (ICC) quantified between-hospital variability. The median odds ratio estimated the odds of a patient receiving neuraxial analgesia when moving between hospitals. The ICC quantified the proportion of the total variance in neuraxial analgesia use due to variation between hospitals.Among 1,510,750 patients who underwent labor, 1,040, 483 (68.9%) received neuraxial analgesia. Both unadjusted and adjusted hospital prevalence exhibited a skewed distribution characterized by a long-left tail. The unadjusted and adjusted prevalence at the 1 st percentile were 5.4% and 6.0%; 5 th percentile were 21.0% and 21.2%; 50 th percentile were 70.6% and 70.7%; 95 th percentile were 75.8% and 76.6%; and 99 th percentile were 75.9% and 78.6%. The adjusted median odds ratio (2.3; 95% CI, 2.1 - 2.5) indicated a substantially increased odds of a patient receiving neuraxial analgesia if they moved from a hospital with a lower to higher odds of neuraxial analgesia. The hospital explained only a moderate portion of the overall variability in neuraxial analgesia (ICC=19.1%; 95% CI, 18.8 - 20.5%).A long left tail in the distribution and wide variation exist in the neuraxial analgesia prevalence across California hospitals, not explained by patient and hospital factors. Addressing the low prevalence among hospitals in the left tail requires exploration of the interplay between patient preferences, staffing availability, and care providers' attitudes towards neuraxial analgesia.

View details for DOI 10.1097/ALN.0000000000004961

View details for PubMedID 38412054
Evaluating tranexamic acid for the prevention and treatment of obstetric hemorrhage. Current opinion in obstetrics & gynecology Kowalczyk, J. J., Cecconi, M., Butwick, A. J. 2023 More

Abstract

Tranexamic acid (TXA) has emerged as a promising pharmacological adjunct to treat and prevent postpartum hemorrhage (PPH). We provide an overview of TXA, including its pharmacology, key findings of randomized trials and observational studies, and critical patient safety information.Pharmacokinetic data indicate that TXA infusions result in peak plasma concentration within 3 min (range: 1-6.6 min). Ex-vivo pharmacodynamic data suggest that low-dose TXA (5 mg/kg) inhibits maximum lysis for at least 1 h. In predominantly developing countries, TXA has demonstrated a 19% reduction in the risk of bleeding-related death among patients with PPH. Based on high-quality randomized trials, TXA prophylaxis does not effectively reduce the risk of PPH during vaginal delivery and is likely ineffective in reducing the PPH risk during cesarean delivery. TXA exposure does not increase the risk of maternal thrombotic events. Maternal deaths have occurred from accidental intrathecal TXA injection from look-alike medication errors.TXA has shown promise as an important adjunct for PPH treatment, especially in low-resource settings. However, TXA is not recommended as PPH prophylaxis during vaginal or cesarean delivery. Patient safety initiatives should be prioritized to prevent maternal death from accidental intrathecal TXA injection.

View details for DOI 10.1097/GCO.0000000000000935

View details for PubMedID 38170626
A validation of the California Maternal Quality Care Collaborative obstetric hemorrhage risk assessment tool in a Swedish population. American journal of obstetrics & gynecology MFM Ladfors, L. V., Butwick, A., Stephansson, O. 2023: 101240 More

View details for DOI 10.1016/j.ajogmf.2023.101240

View details for PubMedID 38056628

see all 183 publications

Professor of Anesthesiology, Perioperative and Pain Medicine

Publications

Ethnicity, socio-economic deprivation and postpartum outcomes following caesarean delivery: a multicentre cohort study. Anaesthesia O'Carroll, J. E., Zucco, L., Warwick, E., Radcliffe, G., Moonesinghe, S. R., El-Boghdadly, K., Guo, N., Carvalho, B., Sultan, P. 2024 More

Abstract

Disparities relating to postpartum recovery outcomes in different socio-economic and racial ethnic groups are underexplored. We conducted a planned analysis of a large prospective caesarean delivery cohort to explore the relationship between ethnicity, socio-economic status and postpartum recovery. Eligible patients were enrolled and baseline demographic, obstetric and medical history data were collected 18 h and 30 h following delivery. Patients completed postpartum quality of life and recovery measures in person on day 1 (EuroQoL EQ-5D-5L, including global health visual analogue scale; Obstetric Quality of Recovery-10 item score; and pain scores) and by telephone between day 28 and day 32 postpartum (EQ-5D-5L and pain scores). Socio-economic group was determined according to the Index of Multiple Deprivation quintile of each patient's usual place of residence. Data from 1000 patients who underwent caesarean delivery were included. There were more patients of Asian, Black and mixed ethnicity in the more deprived quintiles. Patients of White ethnicities had shorter postpartum duration of hospital stay compared with patients of Asian and Black ethnicities (35 (28-56 [18-513]) h vs. 44 (31-71 [19-465]) h vs. 49 (33-75 [23-189]) h, respectively. In adjusted models at day 30, patients of Asian ethnicity had a significantly greater risk of moderate to severe pain (numerical rating scale ≥ 4) at rest and on movement (odds ratio (95%CI) 2.42 (1.24-4.74) and 2.32 (1.40-3.87)), respectively). There were no differences in readmission rates or incidence of complications between groups. Patients from White ethnic backgrounds experience shorter postpartum duration of stay compared with patients from Asian and Black ethnic groups. Ethnic background impacts pain scores and recovery at day 1 postpartum and following hospital discharge, even after adjusting for socio-economic group. Further work is required to understand the underlying factors driving differences in pain and recovery and to develop strategies to reduce disparities in obstetric patients.

View details for DOI 10.1111/anae.16241

View details for PubMedID 38359531
Quality of recovery following childbirth: a prospective, multicentre cohort study. Anaesthesia O'Carroll, J. E., Zucco, L., Warwick, E., Arbane, G., Moonesinghe, S. R., El-Boghdadly, K., Guo, N., Carvalho, B., Sultan, P. 2023 More

Abstract

To better understand outcomes in postpartum patients who receive peripartum anaesthetic interventions, we aimed to assess quality of recovery metrics following childbirth in a UK-based multicentre cohort study. This study was performed during a 2-week period in October 2021 to assess in- and outpatient post-delivery recovery at 1 and 30 days postpartum. The following outcomes were reported: obstetric quality of recovery 10-item measure (ObsQoR-10); EuroQoL (EQ-5D-5L) survey; global health visual analogue scale; postpartum pain scores at rest and movement; length of hospital stay; readmission rates; and self-reported complications. In total, 1638 patients were recruited and responses analysed from 1631 (99.6%) and 1282 patients (80%) at one and 30 days postpartum, respectively. Median (IQR [range]) length of stay postpartum was 39.3 (28.5-61.0 [17.7-513.4]), 40.3 (28.5-59.1 [17.8-220.9]), and 35.9 (27.1-54.1 [17.9-188.4]) h following caesarean, instrumental and vaginal deliveries, respectively. Median (IQR [range]) ObsQoR-10 score was 75 ([62-86] 4-100) on day 1, with the lowest ObsQoR-10 scores (worst recovery) reported by patients undergoing caesarean delivery. Of the 1282 patients, complications within the first 30 days postpartum were reported by 252 (19.7%) of all patients. Readmission to hospital within 30 days of discharge occurred in 69 patients (5.4%), with 49 (3%) for maternal reasons. These data can be used to inform patients regarding expected recovery trajectories; facilitate optimal discharge planning; and identify populations that may benefit most from targeted interventions to improve postpartum recovery experience.

View details for DOI 10.1111/anae.16039

View details for PubMedID 37226593
Expert Consensus Regarding Core Outcomes for Enhanced Recovery after Cesarean Delivery Studies: A Delphi study. Anesthesiology Sultan, P., George, R., Weiniger, C. F., El-Boghdadly, K., Pandal, P., Carvalho, B., CRADLE Study Investigators, Ansari, J. R., Benhamou, D., Baluku, M., Bernstein, P. S., Bollag, L. A., Bowden, S. J., Fay, E., Habib, A. S., Halder, S., Landau, R., Lim, G., Liu, V., Moreno, C., Nelson, G. S., Powell, M. F., Pujic, B., Sharawi, N., Singh, N., Smith, R., Stockert, E., Sultan, E., Tiouririne, M., Wilson, R. D., Wrench, I. J., Yun, R., Zakowski, M. 2022 More

Abstract

BACKGROUND: Heterogeneity among reported outcomes from enhanced recovery after cesarean delivery impact studies is high. This study aimed to develop a standardized enhanced recovery core outcome set for use in future enhanced recovery after cesarean delivery studies.METHODS: An international consensus study involving physicians, patients and a director of Midwifery and Nursing Services, was conducted using a three-round modified Delphi approach (2 rounds of electronic questionnaires and a 3rd round e-discussion), to produce the core outcome set. An initial list of outcomes was based on a previously published systematic review. Consensus was obtained for the final core outcome set, including definitions for key terms, and preferred units of measurement. Strong consensus was defined as ≥70% agreement and weak consensus as 50-69% agreement. Of the 64 stakeholders who were approached, 32 agreed to participate. All 32, 31 and 26 stakeholders completed Rounds 1, 2 and 3, respectively.RESULTS: The number of outcomes in the final core outcome set was reduced from 98 to 15. Strong consensus (≥70% stakeholder agreement) was achieved for 15 outcomes. The core outcome set included: length of hospital stay; compliance with enhanced recovery protocol; maternal morbidity (hospital re-admissions or unplanned consultations); provision of optimal analgesia (maternal satisfaction, compliance with analgesia, opioid consumption / requirement and incidence of nausea or vomiting); fasting times; breastfeeding success; and times to mobilization and urinary catheter removal. The Obstetric Quality of Recovery-10 item composite measure was also included in the final core outcome set. Areas identified as requiring further research included readiness for discharge and analysis of cost savings.CONCLUSIONS: Results from an international consensus to develop a core outcome set for enhanced recovery after cesarean delivery are presented. These are outcomes that could be considered when designing future enhanced recovery studies.

View details for DOI 10.1097/ALN.0000000000004263

View details for PubMedID 35511169
Proposed domains for assessing postpartum recovery: A concept elicitation study. BJOG : an international journal of obstetrics and gynaecology Sultan, P., Jensen, S. E., Taylor, J., El-Sayed, Y., Carmichael, S., Cella, D., Angst, M. S., Gaudilliere, B., Lyell, D. J., Carvalho, B. 2021 More

Abstract

To propose postpartum recovery domains.Concept elicitation study SETTING: Semi-structured interviews POPULATION: 10 writing committee members and 50 stakeholder interviews (23 postpartum women, 9 general obstetricians, 5 maternal fetal medicine specialists, 8 nurses and 5 obstetric anaesthetists).Alternating interviews and focus group meetings until concept saturation was achieved (no new themes in 3 consecutive interviews). Interviews were digitally recorded and transcribed, and an iterative coding process utilised to identify domains.The primary outcome was to identify recovery domains. We also report key symptoms and concerns. Discussion frequency and importance scores (0-100; 0=not important; 100=vitally important to recovery) were used to rank domains. Discussion frequency was used to rank factors helping and hindering recovery, and determine the greatest challenges experienced postpartum.34 interviews and 2 focus group meetings were performed. The 13 postpartum recovery domains identified, (ranked highest to lowest) were: psychosocial distress, surgical / medical factors, infant feeding and breast health, psychosocial support, pain, physical function, sleep, motherhood experience, infant health, fatigue, appearance, sexual function and cognition. The most frequently discussed factors facilitating postpartum recovery were: family support, lactation / breastfeeding support and partner support. The most frequently discussed factor hindering recovery was inadequate social support. The most frequent challenges reported were: breastfeeding (week 1), breastfeeding (week 3) and sleep (week 6).We propose 13 domains, which comprehensively describe recovery in women delivering in a single centre within the United States. This provides a novel framework to study the postpartum recovery process.

View details for DOI 10.1111/1471-0528.16937

View details for PubMedID 34536324
Use of Patient-Reported Outcome Measures to Assess Outpatient Postpartum Recovery: A Systematic Review. JAMA network open Sultan, P., Sharawi, N., Blake, L., Ando, K., Sultan, E., Aghaeepour, N., Carvalho, B., Sadana, N. 2021; 4 (5): e2111600 More

Abstract

Outpatient postpartum recovery is an underexplored area of obstetrics. There is currently no consensus regarding which patient-reported outcome measure (PROM) clinicians and researchers should use to evaluate postpartum recovery.To evaluate PROMs of outpatient postpartum recovery using Consensus-Based Standards for the Selection of Health Measurement Instruments (COSMIN) guidelines.An initial literature search performed in July 2019 identified postpartum recovery PROMs and validation studies. A secondary search in July 2020 identified additional validation studies. Both searches were performed using 4 databases (Web of Science, Embase, PubMed, and CINAHL), with no date limiters. Studies with PROMs evaluating more than 3 proposed outpatient postpartum recovery domains were considered. Studies were included if they assessed any psychometric measurement property of the included PROMs in the outpatient postpartum setting. The PROMs were assessed for the following 8 psychometric measurement properties, as defined by COSMIN: content validity, structural validity, internal consistency, cross-cultural validity and measurement invariance, reliability, measurement error, hypothesis testing, and responsiveness. Psychometric measurement properties were evaluated in each included study using the COSMIN criteria by assessing (1) the quality of the methods (very good, adequate, doubtful, inadequate, or not assessed); (2) overall rating of results (sufficient, insufficient, inconsistent, or indeterminate); (3) level of evidence assessed using the Grading of Recommendations, Assessment, Development and Evaluations assessment tool; and (4) level of recommendation, which included class A (recommended for use; showed adequate content validity with at least low-quality evidence for sufficient internal consistency), class B (not class A or class C), or class C (not recommended).In total, 15 PROMs (7 obstetric specific and 8 non-obstetric specific) were identified, evaluating outpatient postpartum recovery in 46 studies involving 19 165 women. The majority of psychometric measurement properties of the included PROMs were graded as having very-low-level or low-level evidence. The best-performing PROMs that received class A recommendations were the Maternal Concerns Questionnaire, the Postpartum Quality of Life tool, and the World Health Organization Quality of Life-BREF. The remainder of the evaluated PROMs had insufficient evidence to make recommendations regarding their use (and received class B recommendations).This review found that the best-performing PROMs currently available to evaluate outpatient postpartum recovery were the Maternal Concerns Questionnaire, the Postpartum Quality of Life tool, and the World Health Organization Quality of Life-BREF; however, these tools all had significant limitations. This study highlights the need to focus future efforts on robustly developing and validating a new PROM that may comprehensively evaluate outpatient postpartum recovery.

View details for DOI 10.1001/jamanetworkopen.2021.11600

View details for PubMedID 34042993

see all 190 publications

Clinical Assistant Professor, Anesthesiology, Perioperative and Pain Medicine

Publications

Intravenous Calcium to Decrease Blood Loss During Intrapartum Cesarean Delivery: A Randomized Controlled Trial. Obstetrics and gynecology Ansari, J. R., Yarmosh, A., Michel, G., Lyell, D., Hedlin, H., Cornfield, D. N., Carvalho, B., Bateman, B. T. 2023 More

Abstract

OBJECTIVE: To evaluate whether prophylactic administration of 1 g of intravenous calcium chloride after cord clamping reduces blood loss from uterine atony during intrapartum cesarean delivery.METHODS: This single-center, block-randomized, placebo-controlled, double-blind superiority trial compared the effects of 1 g intravenous calcium chloride with those of saline placebo control on blood loss at cesarean delivery. Parturients at 34 or more weeks of gestation requiring intrapartum cesarean delivery after oxytocin exposure in labor were enrolled. Calcium or saline placebo was infused over 10 minutes beginning 1minute after umbilical cord clamping in addition to standard care with oxytocin. The primary outcome was quantitative blood loss, analyzed by inverse Gaussian regression. Planned subgroup analysis excluded nonatonic bleeding, such as hysterotomy extension, arterial bleeding, and occult placenta accreta. We planned to enroll 120 patients to show a 200-mL reduction in quantitative blood loss in planned subgroup analysis, assuming up to 40% incidence of nonatonic bleeding (80% power, alpha<0.05).RESULTS: From April 2022 through March 2023, 828 laboring parturients provided consent and 120 participants were enrolled. Median blood loss was 840 mL in patients allocated to calcium chloride (n=60) and 1,051 mL in patients allocated to placebo (n=60), which was not statistically different (mean reduction 211 mL, 95% CI -33 to 410). In the planned subgroup analysis (n=39 calcium and n=40 placebo), excluding cases of surgeon-documented nonatonic bleeding, calcium reduced quantitative blood loss by 356 mL (95% CI 159-515). Rates of reported side effects were similar between the two groups (38% calcium vs 42% placebo).CONCLUSION: Prophylactic intravenous calcium chloride administered during intrapartum cesarean delivery after umbilical cord clamping did not significantly reduce blood loss in the primary analysis. However, in the planned subgroup analysis, calcium infusion significantly reduced blood loss by approximately 350 mL. These data suggest that this inexpensive and shelf-stable medication warrants future study as a novel treatment strategy to decrease postpartum hemorrhage, the leading global cause of maternal morbidity and mortality.CLINICAL TRIAL REGISTRATION: ClinicalTrials.gov, NCT05027048.

View details for DOI 10.1097/AOG.0000000000005441

View details for PubMedID 37917943
ROLE OF TRPV4 IN MODULATING CALCIUM SIGNALING PATHWAYS IN NON-LABORING PREGNANT WOMEN: IMPLICATIONS FOR MYOMETRIAL CONTRACTILITY AND PRETERM LABOR MANAGEMENT Fornes, D., Ying, L., Ansari, J., Obiyo, L., Alvira, C., Cornfield, D. W B SAUNDERS CO LTD. 2023: E33-E34 More

View details for Web of Science ID 001069701600103
Predicting Placenta Accreta Spectrum Disorder: Are We There Yet? Anesthesia and analgesia Ansari, J. R., Butwick, A. J. 2023; 137 (3): 534-536 More

View details for DOI 10.1213/ANE.0000000000006324

View details for PubMedID 37590798
Evidence-based clinical practice guidelines on postdural puncture headache: a consensus report from a multisociety international working group. Regional anesthesia and pain medicine Uppal, V., Russell, R., Sondekoppam, R. V., Ansari, J., Baber, Z., Chen, Y., DelPizzo, K., Dirzu, D. S., Kalagara, H., Kissoon, N. R., Kranz, P. G., Leffert, L., Lim, G., Lobo, C., Lucas, D. N., Moka, E., Rodriguez, S. E., Sehmbi, H., Vallejo, M. C., Volk, T., Narouze, S. 2023 More

Abstract

Postdural puncture headache (PDPH) can follow unintentional dural puncture during epidural techniques or intentional dural puncture during neuraxial procedures such as a lumbar puncture or spinal anesthesia. Evidence-based guidance on the prevention, diagnosis or management of this condition is, however, currently lacking. This multisociety guidance aims to fill this void and provide practitioners with comprehensive information and patient-centric recommendations to prevent, diagnose and manage patients with PDPH.Based on input from committee members and stakeholders, the committee cochairs developed 10 review questions deemed important for the prevention, diagnosis and management of PDPH. A literature search for each question was performed in MEDLINE (Ovid) on 2 March 2022. The results from each search were imported into separate Covidence projects for deduplication and screening, followed by data extraction. Additional relevant clinical trials, systematic reviews and research studies published through March 2022 were also considered for the development of guidelines and shared with contributors. Each group submitted a structured narrative review along with recommendations graded according to the US Preventative Services Task Force grading of evidence. The interim draft was shared electronically, with each collaborator requested to vote anonymously on each recommendation using two rounds of a modified Delphi approach.Based on contemporary evidence and consensus, the multidisciplinary panel generated 50 recommendations to provide guidance regarding risk factors, prevention, diagnosis and management of PDPH, along with their strength and certainty of evidence. After two rounds of voting, we achieved a high level of consensus for all statements and recommendations. Several recommendations had moderate-to-low certainty of evidence.These clinical practice guidelines for PDPH provide a framework to improve identification, evaluation and delivery of evidence-based care by physicians performing neuraxial procedures to improve the quality of care and align with patients' interests. Uncertainty remains regarding best practice for the majority of management approaches for PDPH due to the paucity of evidence. Additionally, opportunities for future research are identified.

View details for DOI 10.1136/rapm-2023-104817

View details for PubMedID 37582578
Consensus Practice Guidelines on Postdural Puncture Headache From a Multisociety, International Working Group: A Summary Report. JAMA network open Uppal, V., Russell, R., Sondekoppam, R., Ansari, J., Baber, Z., Chen, Y., DelPizzo, K., Dirzu, D. S., Kalagara, H., Kissoon, N. R., Kranz, P. G., Leffert, L., Lim, G., Lobo, C. A., Lucas, D. N., Moka, E., Rodriguez, S. E., Sehmbi, H., Vallejo, M. C., Volk, T., Narouze, S. 2023; 6 (8): e2325387 More

Abstract

Importance: Postdural puncture headache (PDPH) can follow unintentional dural puncture during epidural techniques or intentional dural puncture during neuraxial procedures, such as a lumbar puncture or spinal anesthesia. Evidence-based guidance on the prevention, diagnosis, and management of this condition is, however, currently lacking.Objective: To fill the practice guidelines void and provide comprehensive information and patient-centric recommendations for preventing, diagnosing, and managing PDPH.Evidence Review: With input from committee members and stakeholders of 6 participating professional societies, 10 review questions that were deemed important for the prevention, diagnosis, and management of PDPH were developed. A literature search for each question was performed in MEDLINE on March 2, 2022. Additional relevant clinical trials, systematic reviews, and research studies published through March 2022 were also considered for practice guideline development and shared with collaborator groups. Each group submitted a structured narrative review along with recommendations that were rated according to the US Preventive Services Task Force grading of evidence. Collaborators were asked to vote anonymously on each recommendation using 2 rounds of a modified Delphi approach.Findings: After 2 rounds of electronic voting by a 21-member multidisciplinary collaborator team, 47 recommendations were generated to provide guidance on the risk factors for and the prevention, diagnosis, and management of PDPH, along with ratings for the strength and certainty of evidence. A 90% to 100% consensus was obtained for almost all recommendations. Several recommendations were rated as having moderate to low certainty. Opportunities for future research were identified.Conclusions and Relevance: Results of this consensus statement suggest that current approaches to the treatment and management of PDPH are not uniform due to the paucity of evidence. The practice guidelines, however, provide a framework for individual clinicians to assess PDPH risk, confirm the diagnosis, and adopt a systematic approach to its management.

View details for DOI 10.1001/jamanetworkopen.2023.25387

View details for PubMedID 37581893

see all 26 publications

All Publications

2022 (71 Articles)

Straub L, Huybrechts KF, Hernández-Díaz S, Zhu Y, Vine S, Desai RJ, Gray KJ, Bateman BT. Trajectories of Prescription Opioid Utilization During Pregnancy Among Prepregnancy Chronic Users and Risk of Neonatal Opioid Withdrawal Syndrome. Am J Epidemiol. 2022 Jan 1;191(1):208-219. PMID: 34643225

Esposito DB, Bateman B, Werler M, Straub L, Mogun H, Hernandez-Diaz S, Huybrechts K. Ischemic Placental Disease, Preterm Delivery, and Their Association With Opioid Use During Pregnancy. Am J Epidemiol. 2022 Mar 24;191(5):759-768. PMID: 34165143

Esposito DB, Bateman B, Werler M, Straub L, Mogun H, Hernandez-Diaz S, Huybrechts K. Esposito et al. Respond to "Opioid Use and Ischemic Placental Disease". Am J Epidemiol. 2022 Mar 24;191(5):773-774. PMID: 34528055

Szmulewicz AG, Bateman BT, Levin R, Huybrechts KF. Risk of Overdose Associated With Co-prescription of Antipsychotics and Opioids: A Population-Based Cohort Study. Schizophr Bull. 2022 Mar 1;48(2):405-413. PMID: 34582543

Cole NM, Abushoshah I, Fields KG, Carusi DA, Robinson JN, Bateman BT, Farber MK. Erratum to 'The interrater reliability and agreement of a 0 to 10 uterine tone score in cesarean delivery' [American Journal of Obstetrics & Gynecology MFM 3/3 (2021) 100342]. Am J Obstet Gynecol MFM. 2022 Mar;4(2):100536. PMID: 34872878

Wood ME, Patorno E, Huybrechts KF, Bateman BT, Gray KJ, Seely EW, Vine S, Hernández-Díaz S. The use of glucose-lowering medications for the treatment of type 2 diabetes mellitus during pregnancy in the United States. Endocrinol Diabetes Metab. 2022 Mar;5(2):e00319. PMID: 34953068

Straub L, Bateman BT, Hernandez-Diaz S, York C, Lester B, Wisner KL, McDougle CJ, Pennell PB, Gray KJ, Zhu Y, Suarez EA, Mogun H, Huybrechts KF. Neurodevelopmental Disorders Among Publicly or Privately Insured Children in the United States. JAMA Psychiatry. 2022 Mar 1;79(3):232-242. PMID: 34985527

Reale SC, Bauer ME, Klumpner TT, Aziz MF, Fields KG, Hurwitz R, Saad M, Kheterpal S, Bateman BT, Multicenter Perioperative Outcomes Group Collaborators. Frequency and Risk Factors for Difficult Intubation in Women Undergoing General Anesthesia for Cesarean Delivery: A Multicenter Retrospective Cohort Analysis. Anesthesiology. 2022 May 1;136(5):697-708. PMID: 35188971

Straub L, Hernández-Díaz S, Bateman BT, Wisner KL, Gray KJ, Pennell PB, Lester B, McDougle CJ, Suarez EA, Zhu Y, Zakoul H, Mogun H, Huybrechts KF. Association of Antipsychotic Drug Exposure in Pregnancy With Risk of Neurodevelopmental Disorders: A National Birth Cohort Study. JAMA Intern Med. 2022 May 1;182(5):522-533. PMID: 35343998

Seifert SM, Lumbreras-Marquez MI, Goobie SM, Carusi DA, Fields KG, Bateman BT, Farber MK. Tranexamic acid administered during cesarean delivery in high-risk patients: maternal pharmacokinetics, pharmacodynamics, and coagulation status. Am J Obstet Gynecol. 2022 Jun 6. PMID: 35679896

Creanga AA, Catalano PM, Bateman BT. Obesity in Pregnancy. N Engl J Med. 2022 Jul 21;387(3):248-259. PMID: 35857661

Singh S, Farber MK, Bateman BT, Lumbreras-Marquez MI, Richey CJ, Easter SR, Fields KG, Tsen LC. Obstetric comorbidity index and the odds of general vs. neuraxial anesthesia in women undergoing cesarean delivery: a retrospective cohort study. Int J Obstet Anesth. 2022 Aug;51:103546. PMID: 35473812

Jivraj NK, Ladha K, Goel A, Hill A, Wijeysundera DN, Bateman BT, Wunsch H. Trends in postoperative opioid prescribing in Ontario between 2013 and 2019: a population-based cohort study. Can J Anaesth. 2022 Aug;69(8):974-985. PMID: 35534769

Esposito DB, Huybrechts KF, Werler MM, Straub L, Hernández-Díaz S, Mogun H, Bateman BT. Characteristics of Prescription Opioid Analgesics in Pregnancy and Risk of Neonatal Opioid Withdrawal Syndrome in Newborns. JAMA Netw Open. 2022 Aug 1;5(8):e2228588. PMID: 36001312

Davis R, Guo N, Bentley J, Sie L, Ansari J, Bateman B, Main E, Butwick AJ. Hospital-level variation in rates of postpartum hemorrhage in California. Transfusion. 2022 Sep;62(9):1743-1751. PMID: 35920049

Park CM, Inouye SK, Marcantonio ER, Metzger E, Bateman BT, Lie JJ, Lee SB, Levin R, Kim DH. Perioperative Gabapentin Use and In-Hospital Adverse Clinical Events Among Older Adults After Major Surgery. JAMA Intern Med. 2022 Nov 1;182(11):1117-1127. PMID: 36121671

Lim G, Soens M, Wanaselja A, Chyan A, Carvalho B, Landau R, George RB, Klem ML, Osmundson SS, Krans EE, Terplan M, Bateman BT. A Systematic Scoping Review of Peridelivery Pain Management for Pregnant People With Opioid Use Disorder: From the Society for Obstetric Anesthesia and Perinatology and Society for Maternal Fetal Medicine. Anesth Analg. 2022 Nov 1;135(5):912-925. PMID: 36135926

Suarez EA, Bateman BT, Hernández-Díaz S, Straub L, Wisner KL, Gray KJ, Pennell PB, Lester B, McDougle CJ, Zhu Y, Mogun H, Huybrechts KF. Association of Antidepressant Use During Pregnancy With Risk of Neurodevelopmental Disorders in Children. JAMA Intern Med. 2022 Oct 3;182(11):1149-1160. PMID: 36190722

Creanga AA, Catalano PM, Bateman BT. Obesity in Pregnancy. Reply. N Engl J Med. 2022 Oct 6;387(14):1339. PMID: 36198192

Zhu Y, Bateman BT, Hernandez-Diaz S, Gray KJ, Straub L, Reimers RM, Manning-Geist B, Yoselevsky E, Taylor LG, Ouellet-Hellstrom R, Ma Y, Qiang Y, Hua W, Huybrechts KF. Validation of claims-based algorithms to identify non-live birth outcomes. Pharmacoepidemiol Drug Saf. 2022 Nov 24. PMID: 36420643

Jivraj NK, Ladha KS, Goel A, Hill A, Wijeysundera DN, Bateman BT, Neuman M, Wunsch H. Nonopioid Analgesic Prescriptions Filled after Surgery among Older Adults in Ontario, Canada: A Population-based Cohort Study. Anesthesiology. 2023 Feb 1;138(2):195-207. PMID: 36512729

Suarez EA, Huybrechts KF, Straub L, Hernández-Díaz S, Jones HE, Connery HS, Davis JM, Gray KJ, Lester B, Terplan M, Mogun H, Bateman BT. Buprenorphine versus Methadone for Opioid Use Disorder in Pregnancy. N Engl J Med. 2022 Dec 1;387(22):2033-2044. PMID: 36449419

Huybrechts KF, Straub L, Karlsson P, Pazzagli L, Furu K, Gissler M, Hernandez-Diaz S, Nørgaard M, Zoega H, Bateman BT, Cesta CE, Cohen JM, Leinonen MK, Reutfors J, Selmer RM, Suarez EA, Ulrichsen SP, Kieler H. Association of In Utero Antipsychotic Medication Exposure With Risk of Congenital Malformations in Nordic Countries and the US. JAMA Psychiatry. 2023 Feb 1;80(2):156-166. PMID: 36477338

Thai TN, Rasmussen SA, Smolinski NE, Nduaguba S, Zhu Y, Bateman BT, Huybrechts KF, Hernandez-Diaz S, Winterstein AG. Implication of Maternal Continuous Enrollment on Stillbirth Gestational Age Distributions and Maternal Characteristics in Medicaid Enrollees. Am J Epidemiol. 2022 Dec 7. PMID: 36482740

Sultan P, Jensen SE, Taylor J, El-Sayed Y, Carmichael S, Cella D, Angst MS, Gaudilliere B, Lyell DJ, Carvalho B. Proposed domains for assessing postpartum recovery: a concept elicitation study. BJOG. 2022 Jan;129(1):9-20. PMID: 34536324

Singh NP, Monks D, Makkar JK, Palanisamy A, Sultan P, Singh PM. Efficacy of regional blocks or local anaesthetic infiltration for analgesia after caesarean delivery: a network meta-analysis of randomised controlled trials. Anaesthesia. 2022 Apr;77(4):463-474. PMID: 34958680

Patel R, Kua J, Sharawi N, Bauer ME, Blake L, Moonesinghe SR, Sultan P. Inadequate neuraxial anaesthesia in patients undergoing elective caesarean section: a systematic review. Anaesthesia. 2022 May;77(5):598-604. PMID: 35064923

Neall G, Bampoe S, Sultan P. Analgesia for Caesarean section. BJA Educ. 2022 May;22(5):197-203. PMID: 35496649

O'Carroll J, Carvalho B, Sultan P. Enhancing recovery after cesarean delivery - A narrative review. Best Pract Res Clin Anaesthesiol. 2022 May;36(1):89-8105. PMID: 35659963

Mathias LAST, Carlos RV, Siaulys MM, Gabriades P, Guo N, Domingue B, O'Carroll J, Carvalho B, Sultan P. Development and validation of a Portuguese version of Obstetric Quality of Recovery-10 (ObsQoR-10-Portuguese). Anaesth Crit Care Pain Med. 2022 Jun;41(3):101085. PMID: 35487408

Sultan P, Ando K, Elkhateb R, George RB, Lim G, Carvalho B, Chitneni A, Kawai R, Tulipan T, Blake L, Coker J, O'Carroll J. Assessment of Patient-Reported Outcome Measures for Maternal Postpartum Depression Using the Consensus-Based Standards for the Selection of Health Measurement Instruments Guideline: A Systematic Review. JAMA Netw Open. 2022 Jun 1;5(6):e2214885. PMID: 35749118

Sultan P, Patel R, Sharawi N, Moonesinghe SR. Divinum sedare dolorem: it is divine to alleviate pain. Anaesthesia. 2022 Aug;77(8):942-943. PMID: 35437745

Sultan P, George R, Weiniger CF, El-Boghdadly K, Pandal P, Carvalho B, CRADLE Study Investigators. Expert Consensus Regarding Core Outcomes for Enhanced Recovery after Cesarean Delivery Studies: A Delphi Study. Anesthesiology. 2022 Aug 1;137(2):201-211. PMID: 35511169

Salih T, Elgie L, Hari B, Williams B, Thomas RM, Bandula S, Walkden M, Sultan P, McPherson K, Jenkins K. In-Circuit High-Frequency Jet Ventilation for Radiological Tumor Ablation: A Case Series. A A Pract. 2022 Aug 1;16(8):e01608. PMID: 35960937

Ke JXC, Vidler M, Dol J, Carvalho B, Blake LEA, George RB, Bone J, Seligman KM, Coombs M, Chau A, Saville L, Gibbs RS, Sultan P. Incidence, prevalence, and timing of postpartum complications and mortality in Canada and the United States: a systematic review and meta-analysis protocol. JBI Evid Synth. 2022 Sep 1;20(9):2344-2353. PMID: 35975310

O'Carroll JE, Zucco L, Warwick E, Arbane G, Moonesinghe R, El-Boghdadly K, Guo N, Carvalho B, Sultan P, ObsQoR Collaborators. Obstetric services in the UK during the COVID-19 pandemic: A national survey. Anaesth Crit Care Pain Med. 2022 Oct;41(5):101137. PMID: 35914704

Kozanhan B, Yıldız M, Polat A, Günenç O, Tutar SM, İyisoy MS, Kulhan NG, Sultan P. Development and Validation of a Turkish Version of Obstetric Quality of Recovery-10. Turk J Anaesthesiol Reanim. 2022 Oct;50(5):366-372. PMID: 36301286

Butwick AJ, Bentley J, Daw J, Sultan P, Girsen A, Gibbs RS, Guo N. Postpartum care visits among commercially insured women in the United States. AJOG Glob Rep. 2022 Nov;2(4):100106. PMID: 36275400

Neall G, Bampoe S, Sultan P. Corrigendum to 'Analgesia for Caesarean section' [BJA Education 22 (2022) 197-203]. BJA Educ. 2022 Nov;22(11):448. PMID: 36304912

Sultan P, Patel R. Intra-operative breakthrough pain during caesarean delivery: a path forward. Anaesthesia. 2022 Dec 14. PMID: 36518015

Thurer RL, Doctorvaladan S, Carvalho B, Jelks AT. Limitations of Gravimetric Quantitative Blood Loss during Cesarean Delivery. AJP Rep. 2022 Jan;12(1):e36-e40. PMID: 35141034

Weiniger CF, Carvalho B, Ronel I, Greenberger C, Aptekman B, Almog O, Kagan G, Shalev S. A randomized trial to investigate needle redirections/re-insertions using a handheld ultrasound device versus traditional palpation for spinal anesthesia in obese women undergoing cesarean delivery. Int J Obstet Anesth. 2022 Feb;49:103229. PMID: 34670725

Harding A, George RB, Munro A, Coolen J, Snelgrove-Clarke E, Carvalho B. Patient Preferences for Outcomes Associated With Labor Epidural Analgesia. Cureus. 2022 Feb;14(2):e22599. PMID: 35355544

Weeks AD, Akinola OI, Amorim M, Carvalho B, Deneux-Tharaux C, Liabsuetrakul T, Meremikwu M, Miller S, Nabhan A, Nagai M, Wahabi H, Walker D. World Health Organization Recommendation for Using Uterine Balloon Tamponade to Treat Postpartum Hemorrhage. Obstet Gynecol. 2022 Mar 1;139(3):458-462. PMID: 35115478

Callahan E, Yeh P, Carvalho B, George RB. A survey of labour epidural practices at obstetric anesthesia fellowship programs in the United States. Can J Anaesth. 2022 May;69(5):591-596. PMID: 35089544

Athar MW, Abir G, Seay RC, Guo N, Butwick A, Carvalho B. Accuracy of visual estimation of blood loss in obstetrics using clinical reconstructions: an observational simulation cohort study. Int J Obstet Anesth. 2022 May;50:103539. PMID: 35397264

Roofthooft E, Carvalho B. Preface. Best Pract Res Clin Anaesthesiol. 2022 May;36(1):1. PMID: 35659947

Katz D, Khadge S, Carvalho B. Comparing Postpartum Estimated and Quantified Blood Loss Among Racial Groups: An Observational Study. Cureus. 2022 May;14(5):e25299. PMID: 35755558

Komatsu R, Nash M, Mandalia S, Dinges E, Kamal U, Singh D, El-Omrani H, Anwar A, Delgado C, Ziga TM, Carvalho B. In-Hospital Opioid Consumption After the Previous Cesarean Delivery Weakly Predicts Opioid Consumption After Index Delivery: A Retrospective Cohort Study. Anesth Analg. 2022 Jun 1;134(6):1280-1287. PMID: 35130195

Im M, Riley ET, Hoang D, Lim G, Zakowski M, Carvalho B. Obstetric Anesthesia Procedure-Based Workload and Facility Utilization of Society of Obstetric Anesthesia and Perinatology Centers of Excellence Designated Institutions. Anesth Analg. 2022 Dec 1;135(6):1142-1150. PMID: 35759390

Fedoruk K, Abir G, Carvalho B. Virtual Compared to In-Person Obstetric Anesthesiology Trainee Education During the COVID-19 Pandemic: A Short Report. Cureus. 2022 Jun;14(6):e26423. PMID: 35915679

Ansari JR, Kalariya N, Carvalho B, Flood P, Guo N, Riley E. Calcium chloride for the prevention of uterine atony during cesarean delivery: A pilot randomized controlled trial and pharmacokinetic study. J Clin Anesth. 2022 Sep;80:110796. PMID: 35447502

Riley ET, Carvalho B, Abir G. Storage of emergency airway equipment on labor and delivery units. J Clin Anesth. 2022 Sep;80:110886. PMID: 35623264

Ortner CM, Padilla C, Carvalho B. Cardiac ultrasonography in obstetrics: a necessary skill for the present and future anesthesiologist. Int J Obstet Anesth. 2022 May;50:103545. PMID: 35381420

Ansari J, Farber MK, Thurer RL, Guo N, Rubenstein A, Carvalho B. Quantitative blood loss after vaginal delivery: a retrospective analysis of 104079 measurements at 41 institutions. Int J Obstet Anesth. 2022 Aug;51:103256. PMID: 35636143

Panelli DM, Sherwin EB, Lee CJ, Leonard SA, Miller SE, Miller HE, Tolani AT, Hoover V, Ansari JR, Khandelwal A, Bianco K. Clinical factors associated with a positive postpartum depression screen in people with cardiac disease during pregnancy. Curr Res Psychiatry. 2022;2(2):25-29. PMID: 36570491

Miller HE, Ansari JR. Uterine atony. Curr Opin Obstet Gynecol. 2022 Apr 1;34(2):82-89. PMID: 35102109

Padilla C, Zakowski M, Einav S, Weiniger CF, Landau R, Chestnut DH. The time is now: addressing the need for training in maternal critical care medicine. Int J Obstet Anesth. 2022 May;50:103544. PMID: 35381419

Padilla CR, Shamshirsaz A. Critical care in obstetrics. Best Pract Res Clin Anaesthesiol. 2022 May;36(1):209-225. PMID: 35659956

Lee A, Padilla C. Causes of health inequities. Curr Opin Anaesthesiol. 2022 Jun 1;35(3):278-284. PMID: 35671013

Warrick CM, Markley JC, Farber MK, Balki M, Katz D, Hess PE, Padilla C, Waters JH, Weiniger CF, Butwick AJ. Placenta Accreta Spectrum Disorders: Knowledge Gaps in Anesthesia Care. Anesth Analg. 2022 Jul 1;135(1):191-197. PMID: 35073282

Zieleskiewicz L, Ortner C, Bruckert V, Via G, Bouvet L. Point of care ultrasonography: And now, where shall we go in perioperative medicine?. Anaesth Crit Care Pain Med. 2022 Feb;41(1):101014. PMID: 34954222

Malinzak EB, Hertzberg LB, Doyle CA, Flood P, Kraus MB, Rebello E, Pai SL, Pease S. In Response. Anesth Analg. 2022 Apr 1;134(4):e23-e24. PMID: 35299224

Xiao MZX, Whitney D, Guo N, Bentley J, Shaw GM, Druzin ML, Butwick AJ. Trends in eclampsia in the United States, 2009-2017: a population-based study. J Hypertens. 2022 Mar 1;40(3):490-497. PMID: 34751169

Xiao MZX, Whitney D, Guo N, Sun EC, Wong CA, Bentley J, Butwick AJ. Association of Medicaid Expansion With Neuraxial Labor Analgesia Use in the United States: A Retrospective Cross-Sectional Analysis. Anesth Analg. 2022 Mar 1;134(3):505-514. PMID: 35180167

De Francesco D, Blumenfeld YJ, Marić I, Mayo JA, Chang AL, Fallahzadeh R, Phongpreecha T, Butwick AJ, Xenochristou M, Phibbs CS, Bidoki NH, Becker M, Culos A, Espinosa C, Liu Q, Sylvester KG, Gaudilliere B, Angst MS, Stevenson DK, Shaw GM, Aghaeepour N. A data-driven health index for neonatal morbidities. iScience. 2022 Apr 15;25(4):104143. PMID: 35402862

Bane S, Simard JF, Wall-Wieler E, Butwick AJ, Carmichael SL. Subsequent risk of stillbirth, preterm birth, and small for gestational age: A cross-outcome analysis of adverse birth outcomes. Paediatr Perinat Epidemiol. 2022 Nov;36(6):815-823. PMID: 35437809

Lumbreras-Marquez MI, Capdeville G, Ferrigno AS, Villela-Franyutti D, Bain PA, Campos-Zamora M, Butwick AJ, Farber MK. Association of neuraxial labor analgesia with autism spectrum disorder in children: a systematic review and meta-analysis. Int J Obstet Anesth. 2022 Nov;52:103577. PMID: 35908498

Butwick AJ, Abrams DA, Wong CA. Epidural labour analgesia and autism spectrum disorder: is the current evidence sufficient to dismiss an association?. Br J Anaesth. 2022 Mar;128(3):393-398. PMID: 35039173

Ladfors LV, Muraca GM, Zetterqvist J, Butwick AJ, Stephansson O. Authors reply re: The Ten Group Classification System - First Things First. BJOG. 2022 Jun;129(7):1171-1173. PMID: 34985182

Patel PA, Wyrobek JA, Butwick AJ, Pivalizza EG, Hare GMT, Mazer CD, Goobie SM. Update on Applications and Limitations of Perioperative Tranexamic Acid. Anesth Analg. 2022 Sep 1;135(3):460-473. PMID: 35977357

2021 (90 Articles)

Abir G, Bauer ME. Maternal sepsis update. Curr Opin Anaesthesiol. 2021;34(3):254-259. doi: 10.1097/ACO.0000000000000997
Al-Sulttan S, Bampoe S, Howle R, Setty T, Columb M, Patel A, Fernando R, Husain T, Sultan P. A prospective, up-down sequential allocation study investigating the effectiveness of vital capacity breaths using high-flow nasal oxygenation versus a tight-fitting face mask to pre-oxygenate term pregnant women. Int J Obstet Anesth. 2021;45:28-33. doi: 10.1016/j.ijoa.2020.08.004
Ando K, Hédou JJ, Feyaerts D, Han X, Ganio EA, Tsai ES, Peterson LS, Verdonk F, Tsai AS, Marić I, Wong RJ, Angst MS, Aghaeepour N, Stevenson DK, Blumenfeld YJ, Sultan P, Carvalho B, Stelzer IA, Gaudillière B. A Peripheral Immune Signature of Labor Induction. Front Immunol. 2021;12:725989. doi: 10.3389/fimmu.2021.725989
Ansari JR, Barad M, Shafer S, Flood P. Chronic disabling postpartum headache after unintentional dural puncture during epidural anaesthesia: a prospective cohort study. Br J Anaesth. 2021 Oct;127(4):600-607.
Athar MW, Guo N, Ortner C, Carvalho B, Abir G, Riley ET. An observational pilot study of a novel loss of resistance syringe for locating the epidural space. Int J Obstet Anesth. 2021;47:102984. doi: 10.1016/j.ijoa.2021.102984
Barad M, Carroll I, Reina MA, Ansari J, Flood P. Did she have an epidural? The long-term consequences of postdural puncture headache and the role of unintended dural puncture. Headache. 2021 Oct;61(9):1314-1323.
Bateman BT, Hernandez-Diaz S, Straub L, Zhu Y, Gray KJ, Desai RJ, Mogun H, Gautam N, Huybrechts KF. Association of first trimester prescription opioid use with congenital malformations in the offspring: population based cohort study. BMJ. 2021;372:n102. doi: 10.1136/bmj.n102
Bateman BT, Huybrechts KF. Drug-drug interactions in pregnancy: An important frontier for pharmacoepidemiology. Paediatr Perinat Epidemiol. 2021;35(2):194-195. doi: 10.1111/ppe.12733
Bollag L, Lim G, Sultan P, Habib AS, Landau R, Zakowski M, Tiouririne M, Bhambhani S, Carvalho B. Society for Obstetric Anesthesia and Perinatology: Consensus Statement and Recommendations for Enhanced Recovery After Cesarean. Anesth Analg. 2021;132(5):1362-1377. doi: 10.1213/ANE.0000000000005257
Bröms G, Friedman S, Kim SC, Wood ME, Hernandez-Diaz S, Brill G, Bateman BT, Huybrechts KF, Desai RJ. The Patterns of Use of Medications for Inflammatory Bowel Disease During Pregnancy in the US and Sweden Are Changing. Inflamm Bowel Dis. 2021;27(9):1427-1434. doi: 10.1093/ibd/izaa294
Brookfield K, Galadanci H, Lihong D, Wenning L, Mohammed I, Suleiman M, Oladapo O, Witjes H, Carvalho B. Magnesium sulfate pharmacokinetics after intramuscular dosing in patients with preeclampsia. AJOG Global Reports. 2021;1:100018. doi: 10.1016/j.xagr.2021.100018
Butwick AJ, Liu C, Guo N, Bentley J, Main EK, Mayo JA, Shaw GM, Stephansson O. Association of Gestational Age with Postpartum Hemorrhage: An International Cohort Study. Anesthesiology. 2021;134(6):874-886. doi: 10.1097/ALN.0000000000003730
Butwick AJ, McCarthy RJ. Machine learning: the next frontier in obstetric anesthesiology? Int J Obstet Anesth. 2021;45:8-10. doi: 10.1016/j.ijoa.2020.09.002
Butwick AJ, McDonnell N. Antepartum and postpartum anemia: a narrative review. Int J Obstet Anesth. 2021;47:102985. doi: 10.1016/j.ijoa.2021.102985
Butwick AJ, Wall-Wieler E. Evidence Mounts Refuting an Association Between Epidural Use and Neurodevelopmental Adverse Outcomes in Children. JAMA Netw Open. 2021;4(10):e2131722. doi: 10.1001/jamanetworkopen.2021.31722
Butwick AJ, Wong CA, Lee HC, Blumenfeld YJ, Guo N. Association between Neuraxial Labor Analgesia and Neonatal Morbidity after Operative Vaginal Delivery. Anesthesiology. 2021;134(1):52-60. doi: 10.1097/ALN.0000000000003589
Bykov K, Patorno E, Franklin JM, Vine SM, Bateman BT. Postoperative inpatient utilization of opioid and opioid-sparing analgesics in the United States hospitals, 2007-2017. Pharmacoepidemiol Drug Saf. 2021;30(3):390-394. doi: 10.1002/pds.5187
Carvalho B, Sultan P. Spinal prilocaine for caesarean section: walking a fine line. Anaesthesia. 2021;76(6):740-742. doi: 10.1111/anae.15341
Carvalho B, Zakowski M. Obtaining Excellence in Obstetric Anesthesia. CSA Bulletin July 2021
Chan AL, Guo N, Popat R, Robakis T, Blumenfeld YY, Main E, Scott KA, Butwick AJ. Racial and Ethnic Disparities in Hospital-Based Care Associated with Postpartum Depression. J Racial Ethn Health Disparities. 2021;8(1):220-229. doi: 10.1007/s40615-020-00774-y
Chiuve SE, Kilpatrick RD, Hornstein MD, Petruski-Ivleva N, Wegrzyn LR, Dabrowski EC, Velentgas P, Snabes MC, Bateman BT. Chronic opioid use and complication risks in women with endometriosis: A cohort study in US administrative claims. Pharmacoepidemiol Drug Saf. 2021;30(6):787-796. doi: 10.1002/pds.5209
Cole NM, Abushoshah I, Fields KG, Carusi DA, Robinson JN, Bateman BT, Farber MK. The interrater reliability and agreement of a 0 to 10 uterine tone score in cesarean delivery. Am J Obstet Gynecol MFM. 2021;3(3):100342. doi: 10.1016/j.ajogmf.2021.100342
Combs DJ, Gray KJ, Schulman S, Bateman BT. Associations of thrombocytopenia, transaminase elevations, and transfusion with laboratory coagulation tests in women with preeclampsia: a cross-sectional study. Int J Obstet Anesth. 2021;46:102972. doi: 10.1016/j.ijoa.2021.102972
Cramer JD, Barnett ML, Anne S, Bateman BT, Rosenfeld RM, Tunkel DE, Brenner MJ. Nonopioid, Multimodal Analgesia as First-line Therapy After Otolaryngology Operations: Primer on Nonsteroidal Anti-inflammatory Drugs (NSAIDs). Otolaryngol Head Neck Surg. 2021;164(4):712-719. doi: 10.1177/0194599820947013
Daniels K, Monga M, Gupta S, Abir G, Chanisse M, Newton C. A strategy for disaster preparedness in obstetrics. Am J Disaster Med. 2021;16:207-13. doi: 10.5055/ajdm.2021.0403
DiTosto JD, Liu C, Wall-Wieler E, Gibbs RS, Girsen AI, El-Sayed YY, Butwick AJ, Carmichael SL. Risk factors for postpartum readmission among women after having a stillbirth. Am J Obstet Gynecol MFM. 2021;3(4):100345. doi: 10.1016/j.ajogmf.2021.100345
El-Boghdadly K, Desai N, Halpern S, Blake L, Odor PM, Bampoe S, Carvalho B, Sultan P. Quadratus lumborum block vs. transversus abdominis plane block for caesarean delivery: a systematic review and network meta-analysis. Anesthesia. 2021;76(3):393-403. doi: 10.1111/anae.15160
El-Boghdadly K, Wolmarans M, Stengel AD, Albrecht E, Chin KJ, Elsharkawy H, Kopp S, Mariano ER, Xu JL, Adhikary S, Altıparmak B, Barrington MJ, Bloc S, Blanco R, Boretsky K, Børglum J, Breebaart M, Burckett-St Laurent D, Capdevila X, Carvalho B, Chuan A, Coppens S, Costache I, Dam M, Egeler C, Fajardo M, Gadsden J, Gautier PE, Grant SA, Hadzic A, Hebbard P, Hernandez N, Hogg R, Holtz M, Johnson RL, Karmakar MK, Kessler P, Kwofie K, Lobo C, Ludwin D, MacFarlane A, McDonnell J, McLeod G, Merjavy P, Moran E, O'Donnell BD, Parras T, Pawa A, Perlas A, Rojas Gomez MF, Sala-Blanch X, Saporito A, Sinha SK, Soffin EM, Thottungal A, Tsui BCH, Tulgar S, Turbitt L, Uppal V, van Geffen GJ, Volk T, Elkassabany NM. Standardizing nomenclature in regional anesthesia: an ASRA-ESRA Delphi consensus study of abdominal wall, paraspinal, and chest wall blocks. Reg Anesth Pain Med. 2021;46(7):571-580. doi: 10.1136/rapm-2020-102451
Ende HB, Butwick AJ. Current State and Future Direction of Postpartum Hemorrhage Risk Assessment. Obstet Gynecol. 2021;138(6):924-930. doi: 10.1097/AOG.0000000000004579
Ende HB, Landau R, Cole NM, Burns SM, Bateman BT, Bauer ME, Booth JL, Flood P, Leffert LR, Houle TT, Tsen LC Labor prior to cesarean delivery associated with higher post-discharge opioid consumption. PLoS One. 2021;16(7):e0253990. doi: 10.1371/journal.pone.0253990
Gaulton TG, Wunsch H, Gaskins LJ, Leonard CE, Hennessy S, Ashburn M, Brensinger C, Newcomb C, Wijeysundera D, Bateman BT, Bethell J, Neuman MD. Preoperative Sedative-hypnotic Medication Use and Adverse Postoperative Outcomes. Ann Surg. 2021;274(2):e108-e114. doi: 10.1097/SLA.0000000000003556
Gibbs LR, Pisc JA, Braaten KP, Bateman BT, Garry EM. Prescription opioid fills following surgical abortion. Contraception. 2021;104(6):648-653. doi: 10.1016/j.contraception.2021.07.106
Gray KJ, Kovacheva VP, Mirzakhani H, Bjonnes AC, Almoguera B, Wilson ML, Ingles SA, Lockwood CJ, Hakonarson H, McElrath TF, Murray JC, Norwitz ER, Karumanchi SA, Bateman BT, Keating BJ, Saxena R. Risk of pre-eclampsia in patients with a maternal genetic predisposition to common medical conditions: a case-control study. BJOG. 2021;128(1):55-65. doi: 10.1111/1471-0528.16441
Gyamfi-Bannerman C, Huang Y, Bateman BT, Benson RJ, Pack AM, Wright JD, D'Alton ME, Friedman AM. Maternal morbidity and mortality associated with epilepsy. J Matern Fetal Neonatal Med. 2021;1-7. doi: 10.1080/14767058.2021.1938528
Hernández-Díaz S, Bateman BT, Straub L, Zhu Y, Mogun H, Fischer M, Huybrechts KF. Safety of Tenofovir Disoproxil Fumarate for Pregnant Women Facing the Coronavirus Disease 2019 Pandemic. Am J Epidemiol. 2021;190(11):2339-2349. doi: 10.1093/aje/kwab109
Huybrechts KF, Bateman BT, Hernandez-Diaz S. Hydroxychloroquine early in pregnancy and risk of birth defects: absence of evidence is not the same as evidence of absence. Am J Obstet Gynecol. 2021;224(5):549-550. doi: 10.1016/j.ajog.2020.12.1219
Huybrechts KF, Bateman BT, Zhu Y, Straub L, Mogun H, Kim SC, Desai RJ, Hernandez-Diaz S. Hydroxychloroquine early in pregnancy and risk of birth defects. Am J Obstet Gynecol. 2021;224(3):290.e1-290.e22. doi: 10.1016/j.ajog.2020.09.007
Huybrechts KF, Hernández-Díaz S, Bateman BT. Antiemetic Drugs During Pregnancy: What Can We Learn From Spontaneous Reporting System Database Analyses?-Reply. JAMA Pediatr. 2021;175(3):327-328. doi: 10.1001/jamapediatrics.2020.5177
Huybrechts KF, Kulldorff M, Hernández-Díaz S, Bateman BT, Zhu Y, Mogun H, Wang SV. Active Surveillance of the Safety of Medications Used During Pregnancy. Am J Epidemiol. 2021;190(6):1159-1168. doi: 10.1093/aje/kwaa288
Joudi N, Ansari J. Postpartum headaches after epidural or spinal anesthesia. Curr Opin Obstet Gynecol. 2021 Apr 1;33(2):94-99.
Judy AE, Frymoyer A, Ansari J, Drover DR, Carvalho B. Ampicillin Pharmacokinetics in Peripartum and Laboring Women. Am J Perinatol. 2021 Oct. doi: 10.1055/a-1674-6394. Online ahead of print.
Katz D, Bateman BT, Kjaer K, Turner DP, Spence NZ, Habib AS, George RB, Toledano RD, Grant G, Madden HE, Butwick AJ, Lynde G, Minehart RD, Beilin Y, Houle TT, Sharpe EE, Kodali B, Bharadwaj S, Farber MK, Palanisamy A, Prabhu M, Gonzales NY, Landau R, Leffert L. The Society for Obstetric Anesthesia and Perinatology Coronavirus Disease 2019 Registry: An Analysis of Outcomes Among Pregnant Women Delivering During the Initial Severe Acute Respiratory Syndrome Coronavirus-2 Outbreak in the United States. Anesth Analg. 2021;133(2):462-473. doi: 10.1213/ANE.0000000000005592
Kharasch ED, Avram MJ, Bateman BT, Clark JD, Culley DJ, Davidson AJ, Houle TT, Jiang Y, Levy JH, London MJ, Sleigh JW, Vutskits L. Authorship and Publication Matters: Credit and Credibility. Anesthesiology. 2021;135(1):1-8. doi: 10.1097/ALN.0000000000003830
Komatsu R, Nash MG, Ruth KC, Harbour W, Ziga TM, Mandalia S, Dinges EM, Singh D, El-Omrani H, Reno J, Carvalho B, Bollag LA. Acute Pain Burden and Opioid Dose Requirements after Cesarean Delivery in Parturients with Preexisting Chronic Back Pain and Migraine. Anesthesiol Res Pract. 2021;2021:3305579. doi: 10.1155/2021/3305579. eCollection 2021
Kowalczyk J, Lipman S, Carvalho B. Estimating Obstetric Anesthesiology Workload: Number of Deliveries Compared to Time-Based Workload. Turk J Anaesthesiol Reanim. 2021;49:292-297. doi: 10.5152/TJAR.2021.924
Ladfors LV, Muraca GM, Butwick A, Edgren G, Stephansson O. Accuracy of postpartum hemorrhage coding in the Swedish Pregnancy Register. Acta Obstet Gynecol Scand. 2021;100(2):322-330. doi: 10.1111/aogs.13994
Ladfors LV, Muraca GM, Zetterqvist J, Butwick AJ, Stephansson O. Postpartum haemorrhage trends in Sweden using the Robson ten group classification system: a population-based cohort study. BJOG. 2021. doi: 10.1111/1471-0528.16931
Liu C, Butwick A, Sand A, Wikström AK, Snowden JM, Stephansson O. The association between postpartum hemorrhage and postpartum depression: A Swedish national register-based study. PLoS One. 2021;16(8):e0255938. doi: 10.1371/journal.pone.0255938
Macias P, Wilson JG, Austin NS, Guo N, Carvalho B, Ortner CM. Point-of-Care Lung Ultrasound Pattern in Healthy Parturients: Prevalence of Pulmonary Interstitial Syndrome Following Vaginal Delivery, Elective and Unplanned Intrapartum Cesarean Delivery. Anesth Analg. 2021;133(3):739-746. doi: 10.1213/ANE.0000000000005464
Merrill J, Sultan P, Sharawi N. Advances in anesthetic and obstetric management of patients with placenta accreta spectrum. Curr Opin Anaesthesiol. 2021;34(3):260-268. doi: 10.1097/ACO.0000000000000985
Odor PM, Bampoe S, Lucas DN, Moonesinghe SR, Andrade J, Pandit JJ; Pan-London Peri-operative Audit and Research Network (PLAN), for the DREAMY Investigators Group*. Incidence of accidental awareness during general anaesthesia in obstetrics: a multicentre, prospective cohort study. Anaesthesia. 2021;76(6):759-776. doi: 10.1111/anae.15385. *Sultan P and O’Carroll J are named study investigators
Odor PM, Bampoe S, Moonesinghe SR, Andrade J, Pandit JJ, Lucas DN; Pan-London Perioperative Audit and Research Network (PLAN), for the DREAMY Investigators Group*. General anaesthetic and airway management practice for obstetric surgery in England: a prospective, multicentre observational study. Anaesthesia. 2021;76(4):460-471. doi: 10.1111/anae.15250. *Sultan P and O’Carroll J are named study investigators
Oji-Zurmeyer J, Ortner C, Klein KU, Putz G, Jochberger S. [Neuraxial Morphine for Postoperative Analgesia after Caesarean Deliveries] Anasthesiol Intensivmed Notfallmed Schmerzther. 2021;56(6):439-447. doi: 10.1055/a-1204-5169
Padilla C, Abir G, Zakowski M, Carvalho B. How AI Could Help Doctors Reduce Maternal Mortality. Harvard Business Review August 2021
Phung LC, Farrington EK, Connolly M, Wilson AN, Carvalho B, Homer CSE, Vogel JP. Intravenous oxytocin dosing regimens for postpartum hemorrhage prevention following cesarean delivery: a systematic review and meta-analysis. Am J Obstet Gynecol. 2021;225(3):250.e1-250.e38. doi: 10.1016/j.ajog.2021.04.258
Reale SC, Bateman BT, Farber MK. Exploring New Risk Factors for Postpartum Hemorrhage: Time to Consider Gestational Age? Anesthesiology. 2021;134(6):832-834. doi: 10.1097/ALN.0000000000003775
Reale SC, Lumbreras-Marquez MI, King CH, Burns SL, Fields KG, Diouf K, Goldfarb IT, Ciaranello AL, Robinson JN, Gregory KE, Huybrechts KF, Bateman BT. Patient characteristics associated with SARS-CoV-2 infection in parturients admitted for labour and delivery in Massachusetts during the spring 2020 surge: A prospective cohort study. Paediatr Perinat Epidemiol. 2021;35(1):24-33. doi: 10.1111/ppe.12743
Rodrigues AJ, Waldrop AR, Suharwardy S, Druzin ML, Iv M, Ansari JR, Stone SA, Jaffe RA, Jin MC, Li G, Hayden-Gephart M. Management of brain tumors presenting in pregnancy: a case series and systematic review. Am J Obstet Gynecol MFM. 2021 Jan;3(1):100256
Seligman KM, Abir G. Emergency Resources in Obstetrics. Anesthesiol Clin. 2021;39(4):631-647. doi: 10.1016/j.anclin.2021.08.004
Sheikh M, Carvalho B, Boublik J, Ansari J. Superficial Cervical Plexus Block for Awake Large-Bore Central Line Placement in Parturients: A Case Series. A A Pract. 2021;15(3):e01429. doi: 10.1213/XAA.0000000000001429
Singh NP, Monks D, Makkar JK, Palanisamy A, Sultan P, Singh PM. Efficacy of regional blocks or local anaesthetic infiltration for analgesia after caesarean delivery: a network meta-analysis of randomised controlled trials. Anaesthesia. 2021. doi: 10.1111/anae.15645. Online ahead of print.
Smith AJ, Daly J, Arnolds DE, Scavone BM, Carvalho B. The Generalizability of Patients’ Preferences and Concerns regarding Anesthesia Care for Cesarean Delivery: A Prospective Survey. Anesthesiology Research and Practice 2021: Article ID 9002061. doi: 10.1155/2021/9002061
Stelzer IA, Ghaemi MS, Han X, Ando K, Hédou JJ, Feyaerts D, Peterson LS, Rumer KK, Tsai ES, Ganio EA, Gaudillière DK, Tsai AS, Choisy B, Gaigne LP, Verdonk F, Jacobsen D, Gavasso S, Traber GM, Ellenberger M, Stanley N, Becker M, Culos A, Fallahzadeh R, Wong RJ, Darmstadt GL, Druzin ML, Winn VD, Gibbs RS, Ling XB, Sylvester K, Carvalho B, Snyder MP, Shaw GM, Stevenson DK, Contrepois K, Angst MS, Aghaeepour N, Gaudillière B. Integrated trajectories of the maternal metabolome, proteome, and immunome predict labor onset. Sci Transl Med. 2021;13(592):eabd9898. doi: 10.1126/scitranslmed.abd9898
Straub L, Bateman BT, Hernandez-Diaz S, York C, Zhu Y, Suarez EA, Lester B, Gonzalez L, Hanson R, Hildebrandt C, Homsi J, Kang D, Lee KWK, Lee Z, Li L, Longacre M, Shah N, Tukan N, Wallace F, Williams C, Zerriny S, Mogun H, Huybrechts KF. Validity of claims-based algorithms to identify neurodevelopmental disorders in children. Pharmacoepidemiol Drug Saf. 2021;30(12):1635-1642. doi: 10.1002/pds.5369
Straub L, Huybrechts KF, Hernandez-Diaz S, Zhu Y, Vine S, Desai RJ, Gray KJ, Bateman BT. Chronic prescription opioid use in pregnancy in the United States. Pharmacoepidemiol Drug Saf. 2021;30(4):504-513. doi: 10.1002/pds.5194
Straub L, Huybrechts KF, Hernandez-Diaz S, Zhu Y, Vine S, Desai RJ, Gray KJ, Bateman BT. Trajectories of Prescription Opioid Utilization During Pregnancy Among Pre-Pregnancy Chronic Users and Risk of Neonatal Opioid Withdrawal Syndrome. Am J Epidemiol. 2021:kwab249. doi: 10.1093/aje/kwab249
Sultan P, Ando K, Sultan E, Hawkins J, Blake L, Barwick F, Kawai M, Carvalho B. A systematic review of patient-reported outcome measures used to assess sleep in postpartum women using Consensus Based Standards for the Selection of Health Measurement Instruments (COSMIN) guidelines. Sleep. 2021;44(10):zsab128. doi: 10.1093/sleep/zsab128
Sultan P, Ando K, Sultan E, Hawkins JE, Chitneni A, Sharawi N, Sadana N, Blake LEA, Singh PM, Flood P, Carvalho B. A systematic review of patient-reported outcome measures to assess postpartum pain using Consensus Based Standards for the Selection of Health Measurement Instruments (COSMIN) guidelines. Br J Anaesth. 2021;127(2):264-274. doi: 10.1016/j.bja.2021.03.035
Sultan P, Carvalho B. Evidence-based guidance for use of intrathecal morphine as an alternative to diamorphine for Caesarean delivery analgesia. Br J Anaesth. 2021;127(4):501-505. doi: 10.1016/j.bja.2021.06.023
Sultan P, Carvalho B. Pain after vaginal delivery and during breastfeeding: underexplored and underappreciated. Int J Obstet Anesth. 2021;46:102969. doi: 10.1016/j.ijoa.2021.102969
Sultan P, Carvalho B. Postpartum recovery: what does it take to get back to a baseline? Curr Opin Obstet Gynecol. 2021;33(2):86-93. doi: 10.1097/GCO.0000000000000684
Sultan P, Carvalho B, Halpern S. Comment on the editorial relating to: Transversus abdominis plane block compared with wound infiltration for postoperative analgesia following Cesarean delivery: a systematic review and network meta-analysis. Can J Anaesth. 2021;68(4):581-582. doi: 10.1007/s12630-020-01872-5
Sultan P, Jensen SE, Taylor J, El-Sayed Y, Carmichael S, Cella D, Angst MS, Gaudilliere B, Lyell DJ, Carvalho B. Proposed domains for assessing postpartum recovery: a concept elicitation study. BJOG. 2021. doi: 10.1111/1471-0528.16937. Online ahead of print.
Sultan P, Sharawi N, Blake L, Ando K, Sultan E, Aghaeepour N, Carvalho B, Sadana N. Use of Patient-Reported Outcome Measures to Assess Outpatient Postpartum Recovery: A Systematic Review. JAMA Netw Open. 2021;4(5):e2111600. doi: 10.1001/jamanetworkopen.2021.11600
Sultan P, Sharawi N, Blake L, Habib AS, Brookfield KF, Carvalho B. Impact of enhanced recovery after cesarean delivery on maternal outcomes: A systematic review and meta-analysis. Anaesth Crit Care Pain Med. 2021;40(5):100935. doi: 10.1016/j.accpm.2021.100935
Sultan P, Sultan E, Carvalho B. Regional anaesthesia for labour, operative vaginal delivery and caesarean delivery: a narrative review. Anaesthesia. 2021;76 Suppl 1:136-147. doi: 10.1111/anae.15233
Sun JW, Bourgeois FT, Haneuse S, Hernández-Díaz S, Landon JE, Bateman BT, Huybrechts KF. Development and Validation of a Pediatric Comorbidity Index. Am J Epidemiol. 2021;190(5):918-927. doi: 10.1093/aje/kwaa244
Sun JW, Hernández-Díaz S, Bourgeois FT, Haneuse S, Brill G, Bateman BT, Huybrechts KF. Antidiabetic medication use in commercially insured children and adolescents in the United States from 2004 to 2019. Diabetes Obes Metab. 2021;23(2):444-454. doi: 10.1111/dom.14237
Sun JW, Hernández-Díaz S, Haneuse S, Bourgeois FT, Vine SM, Olfson M, Bateman BT, Huybrechts KF. Association of Selective Serotonin Reuptake Inhibitors With the Risk of Type 2 Diabetes in Children and Adolescents. Am J Obstet Gynecol. 2021;224(3):290.e1-290.e22. doi: 10.1016/j.ajog.2020.09.007
Sutherland TN, Wunsch H, Pinto R, Newcomb C, Brensinger C, Gaskins L, Bateman BT, Neuman MD. Association of the 2016 US Centers for Disease Control and Prevention Opioid Prescribing Guideline With Changes in Opioid Dispensing After Surgery. JAMA Netw Open. 2021;4(6):e2111826. doi: 10.1001/jamanetworkopen.2021.11826
Sutton C, Carvalho B. Post-cesarean delivery analgesia. UpToDate Review March 2021
Szmulewicz AG, Bateman BT, Levin R, Huybrechts KF. Risk of Overdose Associated With Co-prescription of Antipsychotics and Opioids: A Population-Based Cohort Study. Schizophr Bull. 2021:sbab116. doi: 10.1093/schbul/sbab116
Szmulewicz A, Bateman BT, Levin R, Huybrechts KF. The Risk of Overdose With Concomitant Use of Z-Drugs and Prescription Opioids: A Population-Based Cohort Study. Am J Psychiatry. 2021;178(7):643-650. doi: 10.1176/appi.ajp.2020.20071038
Toledo P, Singh PM, Sultan P. Can Noninferior be Superior? Anesth Analg. 2021;132(3):663-665. doi: 10.1213/ANE.0000000000005267
Wall-Wieler E, Bateman BT, Hanlon-Dearman A, Roos LL, Butwick AJ. Association of Epidural Labor Analgesia With Offspring Risk of Autism Spectrum Disorders. JAMA Pediatr. 2021;175(7):698-705. doi: 10.1001/jamapediatrics.2021.0376
Wall-Wieler E, Butwick AJ, Gibbs RS, Lyell DJ, Girsen AI, El-Sayed YY, Carmichael SL. Maternal Health after Stillbirth: Postpartum Hospital Readmission in California. Am J Perinatol. 2021;38(S 01):e137-e145. doi: 10.1055/s-0040-1708803
Weiniger CF, Carvalho B, Ronel I, Greenberger C, Aptekman B, Almog O, Kagan G, Shalev S. A randomized trial to investigate needle redirections/re-insertions using a handheld ultrasound device versus traditional palpation for spinal anesthesia in obese women undergoing cesarean delivery. Int J Obstet Anesth. 2021 Sep:103229. doi: 10.1016/j.ijoa.2021.103229. Online ahead of print.
Wood ME, Chen ST, Huybrechts KF, Bateman BT, Gray KJ, Seely EW, Zhu Y, Mogun H, Patorno E, Hernández-Díaz S. Validation of a Claims-based Algorithm to Identify Pregestational Diabetes Among Pregnant Women in the United States. Epidemiology. 2021;32(6):855-859. doi: 10.1097/EDE.0000000000001397
Xiao MZX, Whitney D, Guo N, Bentley J, Shaw GM, Druzin ML, Butwick AJ. Trends in eclampsia in the United States, 2009-2017: a population-based study. J Hypertens. 2021;40(3):490-497. doi: 10.1097/HJH.0000000000003037
Zhu Y, Huybrechts KF, Desai RJ, Franklin JM, Hernandez-Diaz S, Krumme A, Straub L, Neuman M, Wunsch H, Levin R, Mogun H, Bateman BT. Prescription opioid use after vaginal delivery and subsequent persistent opioid use and misuse. Am J Obstet Gynecol MFM. 2021;3(2):100304. doi: 10.1016/j.ajogmf.2020.100304

2020 (48 Articles)

Abir G, Austin N, Seligman KM, Burian BK, Goldhaber-Fiebert SN. Cognitive aids in obstetric units: Design, implementation, and use. Anesth Analg. 2020;130:1341-50
Ackland GL, Abbott TEF, Jones TF, Leuwer M, Pearse RM; VISION-UK Investigators*. Early elevation in plasma high-sensitivity troponin T and morbidity after elective noncardiac surgery: prospective multicentre observational cohort study. Br J Anaesth. 2020;124(5):535-543 *Sultan P is a named study investigator
Al-Sulttan S, Bampoe S, Howle, R, Setty T, Columb M, Patel A, Fernando R, Husain T, Sultan P. A prospective, up-down sequential allocation study investigating the effectiveness of vital capacity breaths using high-flow nasal oxygenation versus a tight-fitting face mask to pre-oxygenate term pregnant women. Int J Obstet Anesth. 2020 In press
Ansari J, Flood P. Severe sequelae, chronic headache linked to PDPH. ASA Monitor. October 2020, Vol. 84, 1–16
Ansari J, Weiniger CF, Carvalho B, Riley ET. Confounders not general anesthesia likely explains greater postpartum depression. Anesth Analg 2020;131(6):e248-e250
Bauer M, Bernstein K, Dinges E, Delgado C, El-Sharawi N, Sultan P, Mhyre, JM, Landau R. Obstetric Anesthesia During the COVID-19 Pandemic. Anesth Analg. 2020;131(1):7-15
Bollag L, Lim G, Sultan P, Habib AS, Landau R, Zakowski M, Tiouririne M, Bhambhani S, Carvalho B. Society for Obstetric Anesthesia and Perinatology Consensus Statement and Recommendations for Enhanced Recovery After Cesarean (ERAC). Anesth Analg. 2020 In Press. PMID: 33177330.
Brookfield KF, Tuel K, Rincon M, Vinson A, Caughey AB, Carvalho B. Alternate Dosing Protocol for Magnesium Sulfate in Obese Women With Preeclampsia: A Randomized Controlled Trial. Obstet Gynecol. 2020:136:1190-4
Bryant E, Tsai S, Levin E, Fleischman D, Ansari J, Fischbein M, Bianco K, Khandelwal A. Bicuspid Aortic Valve and Ascending Aortic Aneurysm in a Twin Pregnancy. J Am Coll Cardiol Case Rep. 2020:2(1):96–100
Butwick A, Lyell D, Goodnough L. How do I manage severe postpartum hemorrhage? Transfusion. 2020;60(5):897-907
Butwick AJ, Druzin ML, Shaw GM, Guo N. Evaluation of US State-Level Variation in Hypertensive Disorders of Pregnancy. JAMA Netw Open. 2020;3(10):e2018741
Butwick AJ. Postpartum Hemorrhage: Wherefore Art Thou, Hyperfibrinolysis? Anesth Analg. 2020;131(5):1370-1372
Butwick AJ, McCarthy RJ. Machine learning: the next frontier in obstetric anesthesiology? Int J Obstet Anesth. 2020;14:S0959-289X(20)30119-9
Chan AL, Guo N, Popat R, Robakis T, Blumenfeld YY, Main E, Scott KA, Butwick AJ. Racial and Ethnic Disparities in Hospital-Based Care Associated with Postpartum Depression. J Racial Ethn Health Disparities. 2020 May 30. doi: 10.1007/s40615-020-00774-y
Chungsamarnyart Y, Wacharasint P, Carvalho B. Hemodynamic profiles with and without left uterine displacement: a randomized study in term pregnancies receiving subarachnoid blockade for cesarean delivery. J Clin Anesth. 202016;64:109796.
Darnall BD, Mackey SC, Lorig K, Kao MC, Mardian A, Stieg R, Porter J, DeBruyne K, Murphy J, Perez L, Okvat H, Tian L, Flood P, McGovern M, Colloca L, King H, Van Dorsten B, Pun T, Cheung M. Comparative Effectiveness of Cognitive Behavioral Therapy for Chronic Pain and Chronic Pain Self-Management within the Context of Voluntary Patient-Centered Prescription Opioid Tapering: The EMPOWER Study Protocol. Pain Med. 2020;21(8):1523-1531
Desai N, Carvalho B. Conversion of labour epidural analgesia to surgical anaesthesia for emergency or urgent intrapartum caesarean section. BJA Education. 2020;20(1):26-
El-Boghdadly K, Desai N, Halpern S, Blake L, Odor PM, Bampoe S, Carvalho B, Sultan P. Quadratus lumborum block vs. transversus abdominis plane block for caesarean delivery: a systematic review and network meta-analysis. Anaesthesia 2020 In press
Fantin R, Ortner CM, Klein KU, Putz G, Marhofer D, Jochberger S. Hypotension induced by spinal anesthesia during cesarean section : Current treatment concepts. Anaesthetist 2020;69(4):254-261
Fitzgerald JP, Fedoruk KA, Jadin SM, Carvalho B, Halpern SH. Prevention of hypotension after spinal anaesthesia for caesarean section: systematic review and network meta-analysis of randomised controlled trials. Anaesthesia. 2020;75(1):109-121
Howle R, Sultan P, Shah R, Sceales P, Van de Putte P, Bampoe S. Gastric point-of-care ultrasound (PoCUS) during pregnancy and the postpartum period: a systematic review. Int J Obstet Anesth. 2020;44:24-32
Kist M, Bekemeyer Z, Ralls L, Carvalho B, Rodriguez ST, Caruso TJ. Virtual Reality in Laboring Women Undergoing Epidural Placement: A Case Series J Clin Anesth. 2020;61:109635
Kleiman AM, Chisholm CA, Dixon AJ, Sariosek BM, Thiele RH, Hedrick TL, Carvalho B, Tiouririne M. Evaluation of the impact of enhanced recovery after surgery protocol implementation on maternal outcomes following elective cesarean delivery Int J Obstet Anesth. 2020;43:39-46
Komatsu R, Ando K, Flood PD. Postpartum chronic pelvic pain and pelvic girdle pain. Minerva Anestesiol. 2020;86(1):99-100
Komatsu R, Ando K, Flood PD. Factors associated with persistent pain after childbirth: a narrative review. Br J Anaesth. 2020;124(3):e117-e130
Kwon AH, Flood P. Genetics and Gender in Acute Pain and Perioperative OpioidAnalgesia. Anesthesiol Clin. 2020;38(2):341-355
Ladfors LV, Muraca GM, Butwick A, Edgren G, Stephansson O. Accuracy of postpartum hemorrhage coding in the Swedish Pregnancy Register. 2020 In press
Nanji JA, Carvalho B. Pain management during labor and vaginal birth. Best Pract Res Clin Obstet Gynaecol. 2020;67:100-112
Nanji JA, Guo N, Riley ET, Carvalho B. Impact of intraoperative dexamethasone after scheduled cesarean delivery: a retrospective study. Int J Obstet Anesth. 2020;41:39-46
Nedeljkovic SS, Kett A, Vallejo MC, Horn JL, Carvalho B, Bao X, Cole NC, Song J, Yang J, Habib AS. Transversus Abdominis Plane Block With Liposomal Bupivacaine for Pain After Cesarean Delivery in a Multicenter, Randomized, Double-Blind, Controlled Trial Anesth Analg 2020;131;1830-1839
Odor PM, Bampoe S, Lucas DN, Moonesinghe SR, Andrade J, Pandit JJ; DREAMY Investigators Group*. Protocol for direct reporting of awareness in maternity patients (DREAMY): a prospective, multicentre cohort study of accidental awareness during general anaesthesia. Int J Obstet Anesth. 2020;42:47-56 *Sultan P is a named study investigator.
Odor PM, Bampoe S, Moonesinghe SR, Andrade J, Pandit JJ, Lucas DN; Pan-London Peri-operative Audit Research Network for the direct reporting of awareness in maternity patients (DREAMY) Investigators Group*. General anaesthetic and airway management practice for obstetric surgery in England: a prospective, multicentre observational study. Anaesthesia. 2020 In press. *Sultan P is a named study investigator.
Ortner CM, Macias P, Neethling E, Krishnamoorty V, Carvalho B, Dyer RA. Ocular sonography in pre-eclampsia: a simple technique to detect raised intracranial pressure? Int J Obstet Anesth. 2020;41:1-6
Peneva D, Druzin M, Stevens W, Butwick AJ, Lee HC. Maternal and Infant Adverse Outcomes Associated with Mild and Severe Preeclampsia during the First Year after Delivery in the United States. Am J Perinatol. 2020;37(4):398-408
Reiff ES, Habib AS, Carvalho B, Ragahunathan K. Antibiotic Prophylaxis for Cesarean Delivery: A Survey of Anesthesiologists. Anesthesiol Res Pract. 2020;2020:374160
Rodrigues A, Waldrop A, Suharwardy S, Druzin M, Ansari J, Stone S, Jaffe R, Jin M, Li G, Hayden-Gephart M. Management of brain tumors presenting in pregnancy: a case series and systematic review. Am J Obstet Gynecol MFM. 2020 In press
Stewart M, Carvalho B, Tsui BCH. Electrical stimulation test for epidural catheter placement after receiving intrathecal local anesthetic during a combined spinal-epidural technique for Cesarean delivery: confirmation of the spinal nerve root as epidural site of action. Can J Anaesth. 2020;67:498-499S
Sultan P, Carvalho B. Postpartum recovery: what does it take to get back to a baseline? Curr Opin Obstet Gynecol. 2020 In press
Sultan P, Segal S. Epidural-Related Maternal Fever: Still a Hot Topic, But What Are the Burning Issues? Anesth Analg. 2020;130(2):318-320.
Sultan P, Kormendy F, Nishimura S, Carvalho B, Guo N, Papageorgiou C. Comparison of spontaneous versus operative vaginal delivery using Obstetric Quality of Recovery-10 (ObsQoR-10): An observational cohort study. J Clin Anesth. 2020;63:109781
SultanP, Sadana N, Sharawi N, Blake L, El-BoghdadlyK, Falvo A, Ciechanowicz S, Athar W, Shah R, Guo N, Jensen S, El- SayedY, CellaD, Carvalho B.Evaluation of Domains of Patient-Reported Outcome Measures for Recovery after Childbirth: A Scoping and Systematic Review. JAMA Network Open. 2020;3(5):e205540
Sultan P, Sharawi N, Blake L, Carvalho B. Enhanced recovery after caesarean delivery versus standard care studies: a systematic review of interventions and outcomes. Int J Obstet Anesth. 2020;43:72-86
Sultan P, Patel SD, Jadin S, Carvalho B, Halpern SH. Transversus abdominis plane block compared to wound infiltration for post-operative analgesia following cesarean delivery: a systematic review and network meta-analysis. Can J Anesth. 2020;67(12):1710-27
Sultan P, Kamath N, Carvalho B, Bansal P, Elkhateb R, Dougan S, Whittington J, Guo N, El-Sayed Y, Mhrye J, Sharawi N. Evaluation of inpatient postpartum recovery using the Obstetric Quality of Recovery-10 patient-reported outcome measure: a single-center observational study. Am J Obstet Gynecol: MFM. 2020;2(4):100202
Suharwardy S, Carvalho B. Enhanced recovery after surgery for cesarean delivery. Curr Opin Obstet Gynecol. 2020;32(2):113-120
Wall-Wieler E, Butwick AJ, Gibbs RS, Lyell DJ, Girsen AI, El-Sayed YY, Carmichael SL. Maternal Health after Stillbirth: Postpartum Hospital Readmission in California. Am J Perinatol. 2020;4:10.1055/s-0040-1708803
Wall-Wieler E, Shover CL, Hah JM, Carmichael SL, Butwick AJ. Opioid Prescription and Persistent Opioid Use After Ectopic Pregnancy. Obstet Gynecol. 2020;136(3):548-555
Weiniger CF, Maor A, Aptekman B, Carvalho B. Prospective investigation of the relationship between body habitus measurements and depth to epidural space and difficult neuraxial block in term pregnant women. Acta Anaesthesiol Scand. 2020;64(5):677-684

2019 (54 Articles)

Abir G, Carvalho B. Anesthesia for Non-delivery Obstetric Procedures UpToDate Review
Abir G, Austin N, Seligman K, Burian B, Goldhaber-Fiebert S. Cognitive Aids in Obstetric Units: Design, Implementation, and Use. Anesthesia & Analgesia, 2019.
Ackland GL, Abbott TEF, Cain D, Edwards MR, Sultan P, Karmali SN, Fowler AJ, Whittle JR, MacDonald NJ, Reyes A, Gallego Paredes L, Stephens RCM, Gutierrez Del Arroyo A, Woldman S, Archbold RA, Wragg A, Kam E, Ahmad T, Khan AW, Niebrzegowska E, Pearse RM. Preoperative systemic inflammation and perioperative myocardial injury: prospective observational multicentre cohort study of patients undergoing non-cardiac surgery. Br J Anaesth. 2019 Feb;122(2):180-187.
Barad M, Sturgeon JA, Fish S. Mackey S, Flood P. PREEMPT: prospective and predictions from complex migraine patients in practice. Reg Anesth Pain Med 2019; 44(6):660-668
Bateman BT, Carvalho B. Addressing racial and ethnic disparities in pain management in the midst of the opioid crisis. Obstet Gynecol. 2019 Dec;134(6):1144-1146
Bauchat JR, Weiniger CF, Sultan P, Habib A, Ando K, Kowalczyk JJ, Kato R, George R, Palmer C, Carvalho B. (Chair) Society for Obstetric Anesthesia and Perinatology consensus recommendations for the prevention and detection of respiratory depression associated with neuraxial morphine administration for cesarean delivery analgesia. Anesth Analg. 2019 Aug;129(2):458-474. doi: 10.1213/ANE.0000000000004195.
Bollag L, Tiouririne M, Lim G, Carvalho B, Zakowski B, Bhambhani S. Society of Obstetric Anesthesia and Perinatology (SOAP) Enhanced Recovery After Cesarean (ERAC) Consensus Statement.
Butwick AJ, Bentley J, Leonard SA, Carmichael SL, El-Sayed YY, Stephansson O, Guo N. Prepregnancy maternal body mass index and venous thromboembolism: a population-based cohort study. BJOG. 2019; 126: 581-588
Butwick AJ, Weiniger CF. Combatting Misinformation and Myths about Obstetric Anesthesia (editorial) International Journal of Obstetric Anesthesia 2019; 40: 1-3.
Carvalho B, Habib A. Review: personalized analgesic management for cesarean delivery Int J Obstet Anesth. 2019 Apr 26. pii: S0959-289X(18)30574-0. doi: 10.1016/j.ijoa.2019.02.124.
Carvalho B, Kinsella SM. Obstetric Anaesthetists' Association/National Perinatal Epidemiology Unit collaborative project to develop key indicators for quality of care in obstetric anaesthesia: first steps in the right direction. Anaesthesia. 2019 Dec 3. doi: 10.1111/anae.14935.
Carvalho B, Mhyre JM. Editorial: Centers of Excellence for Anesthesia Care of Obstetric Patients Anesth Analg. 2019 May;128(5):844-846
Carvalho B, Seligman K, Weiniger C. The comparative accuracy of a handheld and console ultrasound device for neuraxial depth and landmark assessment Int J Obstet Anesth. 2019 Jan 11. pii: S0959-289X(18)30359-5. doi: 10.1016/j.ijoa.2019.01.004.
Carvalho B, Sutton CD, Kowalczyk J, Flood PD. Efficacy of patient choice of different postoperative analgesic protocols after cesarean delivery: a randomized prospective clinical trial Reg Anesth Pain Med. 2019 Mar 13. pii: rapm-2018-100206. doi: 10.1136/rapm-2018-100206.
Ciechanowicz S, Howle R, Heppolette C, Nakhjavani B, Carvalho B, Sultan P. Evaluation of the obstetric quality-of-recovery score (obsqor-11) following non-elective caesarean delivery. Int J Obstet Anesth. 2019 Feb 2. pii: S0959-289X(18)30515-6. doi: 10.1016/j.ijoa.2019.01.010.
Ciechanowicz S, Setty T, Robson E, Sathasivam C, Chazapis M, Dick J, Carvalho B, Sultan P. Development and evaluation of an obstetric quality-of-recovery score (ObsQoR-11) after elective Caesarean delivery. Br J Anaesth. 2019 Jan;122(1):69-78.
Darnall BD, Juurlink D, Kerns RD, Mackey S, Van Dorsten B, Humphreys K, Gonzales-Sotomayor JA, Furlan A, Gordon DB, Hoffman DE, Katz J, Kertesz SG, Satel S, Lawhern RA, Nicholson KM, Polomano RC Williamson OD, McAnally H, Kao MC, Schug S, Twillman R, Lewis TA, Stieg RL Lorig K, MAllick-Searle T, West RW, Gray S, Ariens SR, Sharpe Potter J, Cowan P, Kollas CD, Laird D, Ingle B, Julian Grove J, Wilson M, Lockman K, Hodson F, Palackdharry CS, Fillingim RB, Rudin J, Barnhouse J, Manhapra A, Henson SR, Singer B, Ljosenvoor M, Griffith M, Doctor JN, Hardin K, London C, Mankowski J, Anderson A, Ellsworth L, Davis Budzinski L, Brandt B, Hartley G, Nickels Heck D, Zobrosky MJ, Cheeck C, Wilson M, Lauz CE, Datz G, Dunaway J, Schonfeld E, Cady M, LeDantec-Boswell T, Craigie M, Sturgeon J, Flood P, Giummarra M, Whelan J, Thorn BE, Martin RL, Schatman ME, Gregory MD, Jirz J, Robinson P, Marx JG, Stewart JR, Keck PS, Hadland SE, Murphy JL, Lumley MA, Brown KS, Leong MS, Fillman M, Broatch JW, Perez A, Watford K, Kruska K, Sophia You D, Ogbeide S, Kukucka A, Lawson S, Ray JB, Wade Martin T, Lakehomer JB Burke A, Cohen RI, Grinspoon P, Rubenstein MS, Sutherland S, Walters K, Lovejoy T. International stakeholder community of pain experts and leaders call for an urgent action on forced opioid tapering. Pain Med 2019; 20:429-33 *Content expert and manuscript editing
Darnall BD, Ziadni MS, Krishnamurthy P, Flood P, Heathcote L, Mackey IG, Taub CJ, Wheeler A. “My surgical success”: effect of a digital behavioral pain medicine intervention on time to opioid cessation after breast cancer surgery – a pilot randomized controlled clinical trial. Pain Medicine 2019; [Epub ahead of print]
Desai N, Carvalho B. Conversion of labour epidural analgesia to surgical anaesthesia for emergency or urgent intrapartum caesarean section BJA Education
Desai N, Gardner A, Carvalho B. Labour epidural analgesia to caesarean section anaesthetic conversion failure: a national survey Anesthesiology Research and Practice 2019, Article ID 6381792
Du L, Wenning L,Carvalho B, Duley L, Brookfield K, Witjes H, de Greef R, Lumbiganon P, Titapant V, Kongwattanakul K, Long Q, Sangkomkamhang U, Gülmezoglu AM, Oladapo OT. Alternative magnesium sulphate dosing regimens for women with pre-eclampsia: A population pharmacokinetic exposure-eclampsia response modelling and simulation study J Clin Pharmacol. 2019 Jun 3. doi: 10.1002/jcph.1448.
Fedoruk K, Seligman KM, Carvalho B, Butwick AJ. Assessing the Association Between Blood Loss and Postoperative Hemoglobin After Cesarean Delivery: A Prospective Study of 4 Blood Loss Measurement Modalities Anesthesia and Analgesia 2019; 128: 926-932.
Fitzgerald JP, Fedoruk KA, Jadin SM, Carvalho B, Halpern SH. Prevention of hypotension after spinal anaesthesia for caesarean section: systematic review and network meta-analysis of randomised controlled trials. Anaesthesia. 2020 Jan;75(1):109-121
Gutierrez del Arroyo A, Sanchez J, Patel S, Phillips S, Reyes A, David AL, EPIFEVER investigators, Sultan P, Ackland GL. The role of leukocyte caspase-1 activity in the development of epidural-related maternal fever: a single centre, observational, mechanistic cohort study. Br J Anaesth. 2019 Jan;122(1):92-102.
Han X, Ghaemi MS, Ando K, Peterson L, Ganio E, Tsai AS, Gaudilliere D, Einhaus J, Stanley N, Culos A, Taneda A, Tsai E, Fallahzadeh R, Wong RJ, Winn VD, Druzin ML, Blumenfeld YJ, Hlatky M, Quaintance CC, Gibbs RS, Lewis BD, Carvalho B, Shaw GM, Stevenson DK, Angst MS, Aghaeepour N, Gaudilliere B. Differential dynamics of the maternal immune system in healthy pregnancy and preeclampsia. Front Immunol. 2019 Jun 11;10:1305.
Heesen M, Carvalho B, Carvalho JCA, Duvekot JJ, Dyer RA, Lucas ND, McDonnell N, Orbach-Zinger S, Kinsella SM. International consensus statement on the use of uterotonic agents during caesarean section. Anaesthesia 2019 doi:10.1111/anae.14757
Kist M, Bekemeyer Z, Ralls L, Carvalho B, Rodriguez ST, Caruso TJ. Virtual reality in laboring women undergoing epidural placement: a case series J Clin Anesth. 2019 Oct 26:109635. doi: 10.1016/j.jclinane.2019.109635.
Kleiman AM, Chisholm CA, Dixon AJ, Sariosek BM, Thiele RH, Hedrick TL, Carvalho B, Tiouririne M. Evaluation of the impact of enhanced recovery after surgery protocol implementation on maternal outcomes following elective cesarean delivery Int J Obstet Anesth. 2019 Aug 21. pii: S0959-289X(19)30527-8.
Komatsu R, Ando K, Flood PD. Postpartum chronic pelvic pain and pelvic girdle pain. Minerva Anestesiol. 2019; [In Press]
Kowalczyk J, Carvalho B, Collins J. Transnasal humidified rapid-insufflation ventilatory exchange for elective laryngeal surgery during pregnancy: a case report. AA Pract. 2019 Dec 1;13(11):426-429.
Kowalczyk J, Yurashevich M, Austin N, Carvalho B. In vitro intravenous fluid co-load rates with and without an intravenous fluid warming device. Int J Obstet Anesth. 2019;38:149-150.
Kwon A and Flood P. Genetics and gender in acute pain and perioperative opioid analgesia. Anesthesiology Clinics 2019 [In Press]
Lozada J, Weiniger CF, Carvalho B, Bauchat JR. Taking a RESPITE from using remifentanil for labour analgesia. The Lancet 2019, 394(10198): e12.
Mhyre JM, Sultan P. General anesthesia for cesarean delivery: Occasionally essential but best avoided. Anesthesiology. 2019 Jun;130(6):864-866.
Nanji JA, Guo N, Riley ET, Carvalho B. Impact of intraoperative dexamethasone after scheduled cesarean delivery: a retrospective study. Int J Obstet Anesth. 2019 Jun 24. doi: 10.1016/j.ijoa.2019.06.006
Nanji JA, Guo N, Riley ET, Faulkner B, Do C, Carvalho B. Evaluation of opioid use with split doses of oral opioids in a postcesarean delivery analgesia order set. Obstet Gynecol. 2019; 44(5): 575-585.
Oji-Zurmeyer J, Ortner CM, Klein KU, Gries M, Kühn C, Schroffenegger T, Putz G, Jochberger S. National survey of obstetric anaesthesia clinical practices in the republic of Austria. Int J Obstet Anesth. 2019 Aug;39:95-98. doi: 10.1016/j.ijoa.2019.02.002. Epub 2019 Feb 15.
Ortner CM, Macias P, Neethling E, Krishnamoorty V, Carvalho B, Dyer RA. Ocular sonography in pre-eclampsia: a simple technique to detect raised intracranial pressure? Int J Obstet Anesth. 2019 Sep 20.
Ortner CM, Krishnamoorthy V, Neethling E, Flint M, Swanevelder JL, Lombard C, Fawcus S, Dyer RA. Point-of-Care Ultrasound Abnormalities in Late-Onset Severe Preeclampsia: Prevalence and Association With Serum Albumin and Brain Natriuretic Peptide. Anesth Analg. 2019 Jun;128(6):1208-1216. doi: 10.1213/ANE.0000000000003759.
Patel SD, Sharawi N, Sultan P. Local anaesthetic techniques for post caesarean delivery pain. Submitted to Int J Obstet Anesth 2019 Nov;40:62-77
Riley E, Akbar K, Carvalho B. Intra-aortic balloon pump for cesarean hysterectomy and massive hemorrhage in a parturient with placenta accreta and pulmonary embolus: a case report. J Med Ultrasound 2019;27:104-6
Riley ET, Mangum K, Carvalho B, Butwick AJ. The crystalloid co-load as effective as colloid preload for preventing hypotension from spinal anesthesia for cesarean delivery. Turk J Anaesthesiol Reanim. 2019; 47(1): 35-40
Sharawi N, Klima L, Shah R, Blake L, Carvalho B, Sultan P. Evaluation of patient-reported outcome measures of functional recovery following caesarean section: a systematic review using the consensus-based standards for the selection of health measurement instruments (COSMIN) checklist. Anaesthesia. 2019 Nov; 74(11):1439-1455.
Sherman J, Hedli L, Kristensen-Cabrera A, Lipman S, Schwandt D, Lee H, Sie L, Halamek L, Austin N. Understanding the Heterogeneity of Labor and Delivery Units: Using Design Thinking Methodology to Assess Environmental Factors that Contribute to Safety in Childbirth. Am J Perinatol. 2019 Apr. doi: 10.1055/s-0039-168549
Stewart M, Carvalho B, Tsui BCH. Electrical stimulation test for epidural catheter placement after receiving intrathecal local anesthetic during a combined spinal-epidural technique for Cesarean delivery: confirmation of the spinal nerve root as epidural site of action. Can J Anaesth. 2019 Nov 4
Sultan P, Bampoe S, Shah R, N.Guo, J. Estes, Halpern S, Butwick A. Treatment of postpartum anemia using oral versus intravenous iron therapy: A systematic review. Am J Obstet Gynecol. 2019 Jul;221(1):19-29.e3.
Sultan P, Bampoe S, Shah R, Guo N, Estes J, Stave C, Goodnough LT, Halpern S, Butwick AJ. Oral versus intravenous iron therapy for postpartum anemia: A systematic review and meta-analysis American Journal of Obstetrics and Gynecology 2019; 221: 19-29.e3
Sutton CD, Carvalho B. Supraglottic airway rescue after failed fiberoptic intubation in a patient with osteogenesis imperfecta A A Pract. 2019 Jan 28. doi: 10.1213/XAA.0000000000000968.
Terkawi AS, Bakri B, Alsadek AS, Alsibaee RH, Alasfar EM, Albakour AH, Aljouja AY, Alshaikhwais NA, Fares FA, Flood PD, Jnaid H Najib AA, Saloom DA, Zahra NA, Altirkawi KA. Women's health in northwestern syria: findings from healthy-syria 2017 study. Avicenna J Med. 2019; 9:94-106
Ton TGN, Bennett MV, Incerti D, Peneva D, Druzin M, Stevens W, Butwick AJ, Lee HC. Maternal and Infant Adverse Outcomes Associated with Mild and Severe Preeclampsia during the First Year after Delivery in the United States. American Journal of Perinatology 2019 Feb 19. [Epub ahead of print]
Wall-Wieler E, Carmichael SL, Gibbs RS, Lyell DL, Girsen AI, El-Sayed YY, Butwick AJ. Severe Maternal Morbidity among Stillbirth and Live Birth Deliveries in California Obstetrics and Gynecology 2019; 134: 310-17
Weiniger CF, Maor A, Aptekman B, Carvalho B. Prospective investigation of the relationship between body habitus measurements and depth to epidural space and difficult neuraxial block in term pregnant women Acta Anaesthesiol Scand. 2019 Dec 31. doi: 10.1111/aas.13544.
Yurashevich M, Carvalho B, Butwick AJ, Ando K, Flood P. Determinants of patient dissatisfaction with anesthesia care in labor and delivery. Anaesthesia 2019; 74:1112-1120
Yurashevich M, Chow A, Kowalczyk J, Traynor AJ, Carvalho B. Preoperative fasting times for patients undergoing cesarean delivery: before and after a patient educational initiative. Turk J Anaesthesiol Reanim. 2019; 47(4): 282-286

2018 (39 Articles)

Ackland G, Gutierrez del Arroyo A, Sanchez J, Patel S, Phillips S, Reyes A, Sultan P, David A. Caspase-1 and epidural-related maternal fever. Br J Anaesth. 2018;120:e20-e21.
Austin N, Kristensen-Cabrera A, Sherman J, Schwandt D, McDonald A, Hedli L, Lipman S, Daniels K, Lee H. Analyzing the heterogeneity of labor and delivery units: a quantitative analysis of space and design. PLoS One. 2018;13:e0209339.
Bagdas D, Gurunc MS, Flood P, Papkee RL, Damaj MI. New insights on neuronal nicotinic acetylcholine receptors as targets for pain and inflammation: a focus on α7 nAChRs. Curr Neuropharmacol. 2018;16:415-25.
Buchan T, Walkden M, Jenkins K, Sultan P, Bandula S. High frequency jet ventilation during cryoablation of small renal tumours. Cardiovasc Intervent Radiol. 2018;41:1067-73.
Butwick AJ, Abreo A, Bateman BT, Lee HC, El-Sayed YY, Stephansson O, Flood P. Effect of body mass index on postpartum hemorrhage. Anesthesiology. 2018;128: 774-83.
Butwick A, Bentley J, Leonard SA, Carmichael SL, EI-Sayed YY, Stephansson O, Guo N. Prepregnancy maternal body mass index and venous thromboembolism: a population based cohort study. BJOG. Nov 30. doi: 10.1111/1471-0528.15567. [Epub ahead of print]
Butwick A, Bentley J, Wong CA, Snowden JM, Sun E, Guo N. United States state-level variation in the use of neuraxial analgesia during labor for pregnant women. JAMA Netw Open. 2018;1:e186567.
Butwick AJ, Palanisamy A. Mode of anesthesia for cesarean delivery and maternal morbidity: can we overcome confounding by indication? Br J Anaesth. 2018;120:621-3.
Butwick A, Walsh EM, Kuzniewicz M, Li SX, Escobar GJ. Accuracy of international classification of diseases, ninth revision, codes for postpartum hemorrhage among women undergoing cesarean delivery. Transfusion. 2018;58:998-1005.
Butwick AJ, Wong CA, Guo N. Maternal body mass index and use of labor neuraxial analgesia: a population-based retrospective cohort study. Anesthesiology. 2018;129:448-58.
Cobb B, Abir G, Carvalho B. Preoperative anterior thigh temperature does not correlate with perioperative temporal hypothermia during cesarean delivery with spinal anesthesia: secondary analysis of a randomized control trial. Int J Obstet Anesth. 2018;33:40-5.
Darnall BD, Ziadni MS, Stieg RL, Mackey IG, Kao MC, Flood P. Patient-centered prescription opioid tapering in community outpatients with chronic pain. JAMA Intern Med. 2018; 178:707-8.
Devlin JW, Skrobik Y, Gélinas C, Needham DM, Slooter AJC, Pandharipande PP, Watson PL, Weinhouse GL, Nunnally ME, Rochwerg B, Balas MC, van den Boogaard M, Bosma KJ, Brummel NE, Chanques G, Denehy L, Drouot X, Fraser GL, Harris JE, Joffe AM, Kho ME, Kress JP, Lanphere JA, McKinley S, Neufeld KJ, Pisani MA, Payen JF, Pun BT, Puntillo KA, Riker RR, Robinson BRH, Shehabi Y, Szumita PM, Winkelman C, Centofanti JE, Price C, Nikayin S, Misak CJ, Flood PD, Kiedrowski K, Alhazzani W. Executive summary: clinical practice guidelines for the prevention and management of pain, agitation/sedation, delirium, immobility, and sleep disruption in adult patients in the ICU. Crit Care Med. 2018;46:1532-48.
Devlin JW, Skrobik Y, Rochwerg B, Nunnally M, Needham DM, Gelinas C, Pandharipande P, Slooter AA, Watson P, Weinhouse G, Kho ME, Centofan J, Price C, Harmon L, Misak C, Flood P, Alhazzani W. Methodological innovation in creating clinical practice guidelines: insights from the 2018 SCCM pain, agitation (sedation), delirium, immobility and sleep (disruption) guideline effort. Crit Care Med. 2018;46:1457-63.
Du L, Wenning L, Migoya E, Xu Y, Carvalho B, Brookfield K, Witjes H, de Greef R, Lumbiganon P, Sangkomkamhang U, Titapant V, Duley L, Long Q, Oladapo OT. Population pharmacokinetic modeling to evaluate standard magnesium sulfate treatments and alternative dosing regimens for pregnant women with preeclampsia. J Clin Pharmacol. 2018 Nov 13. doi: 10.1002/jcph.1328. [Epub ahead of print]
Eisenried A, Austin N, Cobb B, Akhbardeh A, Carvalho B, Yeomans DC, Tzabazis AZ. Correlation of changes in hemodynamic response as measured by cerebral optical spectrometry with subjective pain ratings in volunteers and patients: a prospective cohort study. J Pain Res. 2018;11:1991-8.
Fedoruk K, Seligman KM, Carvalho B, Butwick AJ. Assessing the association between blood loss and postoperative hemoglobin after cesarean delivery: a prospective study of 4 blood loss measurement modalities. Anesth Analg. 2018 May 25. doi: 10.1213/ANE.0000000000003449. [Epub ahead of print]
Fischer A, Ortner CM, Hartmann T, Jochberger S, Klein KU. Which medications are safe for breastfeeding? A synopsis for the anesthetist, obstetrician and pediatrician. Wien Med Wochenschr. 2018 Apr 24. doi: 10.1007/s10354-018-0637-z. [Epub ahead of print]
Guo N, Robakis T, Miller C, Butwick A. Prevalence of depression among women of reproductive age in the United States.Obstet Gynecol. 2018;131:671-9.
Ho PT, Carvalho B, Sun EC, Macario A, Riley ET. Cost-benefit analysis of maintaining a fully stocked malignant hyperthermia cart versus an initial dantrolene treatment dose for maternity units. Anesthesiology. 2018;129:249-59.
Howle R, Ciechanowicz S, Heppolette C, Nakhjavani B, Sultan P. Validation of an obstetric quality of recovery scoring tool (ObsQoR-11) after emergency caesarean delivery. Br J Anaesth. 2018;121:e19-e20.
Komatsu R, Carvalho B, Flood P. Prediction of pain, analgesia requirement and recovery of function after childbirth. Br J Anaesth. 2018;121:417-26.
Leffert L, Butwick A, Arendt K, Bates S, Boehlen F, Fernando R, Friedman A, Horlocker T, Kopp S, Montgomery D, Pellegrini J, Smiley R, Toledo P, Carvalho B, Landau IR. The Society for Obstetric Anesthesia and Perinatology consensus statement on the anesthetic management of pregnant and postpartum women receiving thromboprophylaxis or higher dose anticoagulants. Anesth Analg. 2018; 126:928-44.
Nanji JA, Carvalho B. Modern techniques to optimize neuraxial labor analgesia. Anesth Pain Med. 2018;13:233-40.
Ng S, Sodha S, Habib AS, Carvalho B, Sultan P. High-dose versus low-dose local anesthetic for transversus abdominis plane block post-cesarean delivery analgesia - a meta-analysis. Br J Anaesth. 2018;120:252-63.
Ortner CM, Krishnamoorthy V, Neethling E, Flint M, Swanevelder JL, Lombard C, Fawcus S, Dyer RA. Point-of-care ultrasound abnormalities in late onset severe preeclampsia: prevalence and association with serum albumin and brain natriuretic peptide. Anesth Analg. 2018 Sep 10. doi: 10.1213/ANE.0000000000003759. [Epub ahead of print]
Palmer E, Ciechanowicz S, Reeve A, Harris S, Wong DJN, Sultan P. Operating room-to-incision interval and neonatal outcome in emergency caesarean section: a retrospective 5-year cohort study. Anaesthesia. 2018;73:825-31.
Patel SD, Habib AS, Phillips S, Carvalho B, Sultan P. The effect of glycopyrrolate on the incidence of hypotension and vasopressor requirement during spinal anesthesia for cesarean delivery: a meta-analysis. Anesth Analg. 2018;126:552-8.
Pushpanathan E, Setty T, Carvalho B, Sultan P. A systematic review of postoperative pain outcome measurements utilised in regional anesthesia randomized controlled trials. Anesthesiol Res Prac. 2018;2018:9050239.
Riley ET. Comment on arachnoid and dura mater lesions. Reg Anesth Pain Med. 2018;43:332.
Riley ET, Dyer RA, Carvalho B. Left uterine tilt for cesarean delivery significantly improves maternal hemodynamics and should not be considered outdated dogma. Anesthesiology. 2018;128:858-9.
Seligman KM, Weiniger CF, Carvalho B. The accuracy of a handheld ultrasound device for neuraxial depth and landmark assessment: a prospective cohort trial. Anesth Analg. 2018;126:1995-8.
Sharawi N, Carvalho B, Habib AS, Blake L, Mhyre JM, Sultan P. A systematic review evaluating neuraxial morphine and diamorphine associated respiratory depression following cesarean delivery. Anesth Analg. 2018;127:1385-95.
Sloan R, Shapiro P, McKinley P, Bartels M, Shimbo D, Lauriola V, Karmally W, Choi C, Choo T, Scodes J, Flood P, Tracey KJ. Aerobic exercise training and systemic inflammation: results of a randomized controlled trial. J Am Heart Ass. 2018;7:e010201.
Tan, M, Lipman S, Lee H, Sie L, Carvalho B. Evaluation of electronic medical records on nurses’ time allocation during cesarean delivery. J Patient Saf. 2018 Feb 26 doi: 10.1097/PTS.0000000000000467. [Epub ahead of print]
Weber U, Schiefer J, Muehlbacher J, Bernardi M, Ortner CM, Jaksch P. High altitude trekking after lung transplantation: a prospective study using lung ultrasound to detect comet tails for interstitial pulmonary edema in lung transplant recipients and healthy volunteers. Transpl Int. 2018;31:1245-53.
Weiniger CF, Akdagli S, Turval E, Carvalho B. Prospective observational investigation of capnography and pulse oximetry monitoring after cesarean delivery with intrathecal morphine. Anesth Analg. 2018 Jun 28. doi: 10.1213/ANE.0000000000003503. [Epub ahead of print]
Weiniger CF, Cobb B, Wang RR. Carvalho B. Observational study using ultrasound to assess midline labor epidural analgesia placement and analgesic efficacy. J Ultrasound Med. 2018;37:1693-9.
Zackler A, Flood P, Dajao R, Maramara L, Goetzl L. Suspected chorioamnionitis and myometrial contractility: mechanisms for increased risk of cesarean delivery and postpartum hemorrhage. Reprod Sci. 2018 Jan 1:1933719118778819. doi: 10.1177/1933719118778819. [Epub ahead of print]

2017 (47 Articles)

Abir G, Akdagli S, Butwick A, Carvalho B. Clinical and microbiological features of maternal sepsis: a retrospective study. Int J Obstet Anesth. 2017;29:26-33.
Abir G, Mhyre J. Maternal mortality and the role of the obstetric anesthesiologist. Best Pract Res Clin Anaesthesiol. 2017;31:91-105.
Bateman BT, Cole NM, Maeda A, Burns SM, Houle TT, Huybrechts KF, Clancy CR, Hopp SB, Ecker JL, Ende H, Grewe K, Corradini BR, Schoenfeld RE, Sankar K, Day LJ, Harris LC, Booth JL, Flood P, Bauer ME, Tsen LC, Leffert LR, Landau R. Patterns of opioid prescription and use after cesarean delivery. Obstet Gynecol. 2017;130:29-35.
Betti F, Carvalho B, Riley ET. Intrathecal migration of an epidural catheter while using a programmed intermittent epidural bolus technique for labor analgesia maintenance: a case report. A A Case Rep. 2017;9:357-9.
Brookfield KF, Elkomy M, Su F, Drover DR, Carvalho B. Optimization of maternal magnesium sulfate administration for fetal neuroprotection: application of a prospectively constructed pharmacokinetic model to the BEAM cohort. J Clin Pharmacol. 2017;57:1419-24.
Butwick A. Improving post-caesarean analgesia: where to next? BJOG. 2017;124:1071.
Butwick AJ, Ramachandran B, Hegde P, Riley ET, El-Sayed YY, Nelson LM. Risk factors for severe postpartum hemorrhage after cesarean delivery: case-control studies. Anesth Analg. 2017;125:523-32.
Butwick AJ, Walsh EM, Kuzniewicz M, Li SX, Escobar GJ. Patterns and predictors of severe postpartum anemia after cesarean section. Transfusion. 2017;57:36-44.
Carvalho B, Bateman B. Not too little, not too much: finding the goldilocks zone for spinal anesthesia to facilitate external cephalic version. Anesthesiology. 2017;127:596-8.
Carvalho B, Butwick AJ. Postcesarean delivery analgesia. Best Pract Res Clin Anaesthesiol. 2017;31:69-79.
Carvalho B, Mirza F, Flood P. Patient choice compared with no choice of intrathecal morphine dose for caesarean analgesia: a randomized clinical trial. Br J Anaesth. 2017;118:762-71.
Carvalho B, Riley ET. Programmed intermittent epidural boluses (PIEB) for maintenance of labor analgesia: an incremental step before the next paradigm shift? Turk J Anaesthesiol Reanim. 2017;45:73-5.
13. Carvalho B, Weiniger CF. A perspective on hypercapnia events after cesarean delivery in women receiving intrathecal morphine. Anesth Analg. 2017;125:355-6.
Carvalho B, Zheng LL, Butwick A. Comparative effectiveness of lower leg compression devices versus sequential compression devices to prevent postspinal hypotension during cesarean delivery. Anesth Analg. 2017;124:696-7.
Chin KJ, McDonnell JG, Carvalho B, Sharkey A, Pawa A, Gadsden J. Essentials of our current understanding: abdominal wall blocks. Reg Anesth Pain Med. 2017;42:133-83.
Cobb B, Lipman S. Cardiac arrest: obstetric CPR/ACLS. Clin Obstet Gynecol. 2017;60:425-30.
Daniels K, Hamilton C, Crowe S, Lipman S, Halamek LP, Lee HC. Opportunities to foster efficient communication in labor and delivery using simulation. AJP Rep. 2017;7:e44-e48.
Desai N, Carvalho B. General anaesthesia for caesarean section: is the end in sight for thiopental? Br J Hosp Med (Lond). 2017;78:358.
Duffield A, McKenzie C, Carvalho B, Ramachandran B, Yin V, El-Sayed YY, Riley ET, Butwick AJ. Effect of a high-rate versus a low-rate oxytocin infusion for maintaining uterine contractility during elective cesarean delivery: a prospective randomized clinical trial. Anesth Analg. 2017;124:857-62.
Duffield A, Sultan P, Riley ET, Carvalho B. Optimal administration of cefazolin prophylaxis for cesarean delivery. J Perinatol. 2017;37:16-20.
Farr A, Holzer I, Einig S, Ortner CM, Lenz-Gebhart A, Lehner R. Outcomes and trends of peripartum maternal admission to the intensive care unit. Wien Klin Wochenschr. 2017;129:605-11.
Jochberger S, Klein KU, Ortner CM. Schmerztherapie während der Geburt (Pain management during labor). Wien Med Wochenschr. 2017;167:368-73.
Komatsu R, Carvalho B, Flood P. Recovery after nulliparous birth: a detailed analysis of pain analgesia and recovery of function. Anesthesiology. 2017;127;684-94
Kowalczyk JJ, Bause GS. From Danielsville to doctor's day: Crawford W. Long, MD, the first surgical and first obstetric etherist. J Anesth Hist. 2017;3:31-2.
Kumar G, Howard SK, Kou A, Kim TE, Butwick AJ, Mariano ER. Availability and readability of online patient education materials regarding regional anesthesia techniques for perioperative pain management. Pain Med. 2017;18:2027-32.
Leffert LR, Dubois HM, Butwick AJ, Carvalho B, Houle TT, Landau R. Neuraxial anesthesia in obstetric patients receiving thromboprophylaxis with unfractionated or low-molecular-weight heparin: a systematic review of spinal epidural hematoma. Anesth Analg. 2017;125:223-31.
Mayo-Wilson E, Li T, Fusco N, Bertizzolo L, Canner JK, Cowley T, Doshi P, Ehmsen J, Gresham G, Guo N, Haythornthwaite JA, Heyward J, Hong H, Pham D, Payne JL, Rosman L, Stuart EA, Suarez-Cuervo C, Tolbert E, Twose C, Vedula S, Dickersin K. Cherry-picking by trialists and meta-analysts can drive conclusions about intervention efficacy. J Clin Epidemiology. 2017;91:95-110.
McKenzie C, Akdagli S, Abir G, Carvalho B. Postpartum tubal ligation: a retrospective review of anesthetic management at a single institution and a practice survey of academic institutions. J Clin Anesth. 2017;43:39-46.
Miller CM, Cohn S, Akdagli S, Carvalho B, Blumenfeld YJ, Butwick AJ. Postpartum hemorrhage following vaginal delivery: risk factors and maternal outcomes. J Perinatol. 2017;37:243-8.
Moy DM, Kim TE, Harrison TK, Leng JC, Carvalho B, Howard SK, Shum C, Kou A, Mariano ER; Anesthesiology-Directed Advanced Procedural Training (ADAPT) Research Group. Comparative echogenicity of an epidural catheter and 2 new catheters designed for ultrasound-guided continuous peripheral nerve blocks. J Ultrasound Med. 2017;36:2571-6.
Nekhendzy V, Ramaiah VK, Collins J, Lemmens HJ, Most SP. The safety and efficacy of the use of the flexible laryngeal mask airway with positive pressure ventilation in elective ENT surgery: a 15-year retrospective single-center study. Minerva Anestesiol. 2017;83:947-55.
Panigrahi AK, Yeaton-Massey A, Bakhtary S, Andrews J, Lyell DJ, Butwick AJ, Goodnough LT. A standardized approach for transfusion medicine support in patients with morbidly adherent placenta. Anesth Analg. 2017;125:603-8.
Phillips S, Subair S, Husain T, Sultan P. Apnoeic oxygenation during maternal cardiac arrest in a parturient with extreme obesity. Int J Obstet Anesth. 2017;29:88-90.
Rahman S, Walker D, Sultan P. Medical identification jewellery: an opportunity to save lives or an unreliable hindrance? Anaesthesia. 2017;72:1139-45.
Riley ET. Comment on Montenigro et al., "Cumulative head impact exposure predicts later-life depression, apathy, executive dysfunction, and cognitive impairment in former high school and college football players". J Neurotrauma. 2017;34:1490.
Riley ET, Carvalho B. Programmed intermittent epidural boluses (PIEB) for maintenance of labor analgesia: a superior technique to continuous epidural infusion? Turk J Anaesthesiol Reanim. 2017;45:65-6.
Seligman K, Ramachandran B, Hegde P, Riley ET, El-Sayed YY, Nelson LM, Butwick AJ. Obstetric interventions and maternal morbidity among women who experience severe postpartum hemorrhage during cesarean delivery. Int J Obstet Anesth. 2017;31:27-36.
Shaylor R, Weiniger CF, Austin N, Tzabazis A, Shander A, Goodnough LT, Butwick AJ. National and international guidelines for patient blood management in obstetrics: a qualitative review. Anesth Analg. 2017;124:216-32.
Sultan P, Habib A, Carvalho B. Ambient operating room temperature: mother, baby or surgeon? Br J Anaesth. 2017;119:839.
Sutton CD, Butwick AJ, Riley ET, Carvalho B. Nitrous oxide for labor analgesia: utilization and predictors of conversion to neuraxial analgesia. J Clin Anesth. 2017;40:40-5.
Sutton CD, Carvalho B. Optimal pain management after cesarean delivery. Anesthesiol Clin. 2017;35:107-24.
Sutton C, Carvalho B. What's trending now? An analysis of trends in internet searches for labor epidurals. Int J Obstet Anesth. 2017;30:52-7.
Takazawa T, Choudhury P, Tong CK, Conway CM, Scherrer G, Flood PD, Mukai J, MacDermott AB. Inhibition mediated by glycinergic and GABAergic receptors on excitatory neurons in mouse superficial dorsal horn is location-specific but modified by inflammation. J Neurosci. 2017;37:2336-48.
Van Erp M, Ortner CM, Jochberger S, Klein KU. Aktuelle versorgungskonzepte in der geburtshilflichen anästhesie (Recent standards in management of obstetric anesthesia). Wien Med Wochenschr. 2017;167:374-89.
Wang M, He M, Wu B, Ke L, Han T, Wang J, Shan H, Ness P, Guo N, Liu Y, Nelson K. The association of elevated alanine aminotransferase levels with hepatitis E virus infections among blood donors in China. Transfusion. 2017;57:273-9.
Weiniger CF, Carvalho B, Landau R. Optimal and timely triggers for vital signs-controlled, patient-assisted intravenous analgesia (VPIA) using remifentanil for labour and delivery analgesia. Anaesthesia. 2017;72:1155-6.
Weiniger CF, Carvalho B, Stocki D, Einav S. Analysis of physiological respiratory variable alarm alerts among laboring women receiving remifentanil. Anesth Analg. 2017;124:1211-8.

2016 (36 Articles)

Ansari J, Carvalho B, Shafer S, Flood P. Pharmacokinetics and pharmacodynamics of drugs commonly used in pregnancy and parturition. Anesth Analg. 2016;122:786-804.
Austin N, Goldhaber-Fiebert S, Daniels K, Arafeh J, Grenon V, Welle D, Lipman S. Building comprehensive strategies for obstetric safety: simulation drills and communication. Anesth Analg. 2016;123:1181-90.
Brookfield KF, O'Malley K, El-Sayed YY, Blumenfeld YJ, Butwick AJ. Does time of delivery influence the risk of neonatal morbidity? Am J Perinatol. 2016;33:502-9.
Brookfield KF, Su F, Drover DR, Elkomy MH, Adelus M, Lyell DJ, Carvalho B. Pharmacokinetics and placental transfer of magnesium sulfate in pregnant women. Am J Obstet Gynecol. 2016;214:737.e1-9.
Butwick A, Blumenfeld Y, Brookfield K, Weiniger CF. Racial and ethnic disparities in mode of anesthesia for cesarean delivery. Anesth Analg. 2016;122:472-9.
Butwick AJ, Tiouririne M. Evaluation of high-risk obstetric patients: a survey of US academic centers. J Clin Anesth. 2016;33:460-8.
Carvalho B, George RB, Cobb B, McKenzie C, Riley ET. Implementation of programmed intermittent epidural bolus for the maintenance of labor analgesia. Anesth Analg. 2016;123:965-71.
Carvalho B, Granot M, Sultan P, Wilson H, Landau R. A longitudinal study to evaluate pregnancy-induced endogenous analgesia and pain modulation. Reg Anesth Pain Med. 2016;41:175-80.
Carvalho B, Mhyre JM. Moving beyond the 0-10 scale for labor pain measurement. Anesth Analg. 2016;123:1351-3.
Carvalho B, Zheng M, Harter S, Sultan P. A prospective cohort study evaluating the ability of anticipated pain, perceived analgesic needs, and psychological traits to predict pain and analgesic usage following cesarean delivery. Anesthesiol Res Pract. 2016;2016:7948412 .
Cobb B, Cho Y, Hilton G, Ting V, Carvalho B. Active warming utilizing combined intravenous fluid and forced-air warming decreases hypothermia and improves maternal comfort during cesarean delivery. Anesth Analg. 2016;122:1490-7.
Darnall B, Wheeler A, Taub C, Mackey I, Wapnir I, Schultz C, Rico T, Flood P. An internet-based perioperative pain psychology treatment program: results of a randomized controlled trial in breast oncology surgery patients. J Pain. 2016;17:S106.
Degos V, Flood P. Are epigenetic changes the key to the elusive mechanism for the long-lasting effects of anesthetic drugs that persist after emergence? Anesthesiology. 2016;124:530-1.
Farber MK, Miller CM, Ramachandran B, Hegde P, Akbar K, Goodnough LT, Butwick AJ. Knowledge of blood loss at delivery among postpartum patients. Peer J. 2016;4:e2361.
Flood P, Clark JD. Molecular interaction between stress and pain. Anesthesiology. 2016;124:994-5.
Fragiadakis GK, Baca QJ, Gherardini PF, Ganio EA, Gaudilliere DK, Tingle M, Lancero HL, McNeil LS, Spitzer MH, Wong RJ, Shaw GM, Darmstadt GL, Sylvester KG, Winn VD, Carvalho B, Lewis DB, Stevenson DK, Nolan GP, Aghaeepour N, Angst MS, Gaudilliere BL. Mapping the fetomaternal peripheral immune system at term pregnancy. J Immunol. 2016;197:4482-92.
Hilton G, Daniels K, Carvalho B. Simulation study assessing healthcare provider's knowledge of preeclampsia and eclampsia in a tertiary referral center. Simul Healthc. 2016;11:25-31.
Hilton G, Daniels K, Goldhaber-Fiebert SN, Lipman S, Carvalho B, Butwick A. Checklists and multidisciplinary team performance during simulated obstetric hemorrhage. Int J Obstet Anesth. 2016;25:9-16.
Hu LQ, Flood P, Li Y, Tao W, Zhao P, Xia Y, Pian-Smith MC, Stellaccio FS, Ouanes JP, Hu F, Wong CA. No pain labor & delivery: a global health initiative's impact on clinical outcomes in China. Anesth Analg. 2016;122:1931-8.
Ioscovich A, Shatalin D, Butwick AJ, Ginosar Y, Orbach-Zinger S, Weiniger CF. Israeli survey of anesthesia practice related to placenta previa and accreta. Acta Anaesthesiol Scand. 2016;60:457-64.
Lipman S, Cohen SE, Mhyre J, Carvalho B, Einav S, Arafeh J, Jeejeebhoy F, Cobb B, Druzin M, Katz V, Harney K. Challenging the 4- to 5-minute rule: from perimortem cesarean to resuscitative hysterotomy. Am J Obstet Gynecol. 2016;215:129-31.
McKenzie CP, Carvalho B, Riley ET. The Wiley spinal catheter-over-needle system for continuous spinal anesthesia: a case series of 5 cesarean deliveries complicated by paresthesias and headaches. Reg Anesth Pain Med. 2016;41:405-10.
McKenzie CP, Cobb B, Riley ET, Carvalho B. Programmed intermittent epidural boluses for maintenance of labor analgesia: an impact study. Int J Obstet Anesth. 2016;26:32-8.
Miller CM, Ramachandran B, Akbar K, Carvalho B, Butwick AJ. The impact of postpartum hemoglobin levels on maternal quality of life after delivery: a prospective exploratory study. Ann Hematol. 2016;95:2049-55.
Osmundson SS, Gould JB, Butwick AJ, Yeaton-Massey A, El-Sayed YY. Labor outcome at extremely advanced maternal age. Am J Obstet Gynecol. 2016;214:362.e1-7.
Riley ET. Chronic traumatic encephalopathy and professional athletes: suicides are contagious. World Neurosurg. 2016;94:576-7.
Sultan P, Halpern SH, Pushpanathan E, Patel S, Carvalho B. Effect of intrathecal morphine dose for cesarean delivery on maternal and neonatal outcomes: a meta-analysis. Anesth Analg. 2016;123:154-64.
Sultan P, Seligman K, Carvalho B. Amniotic fluid embolism: update and review. Curr Opin Anaesthesiol. 2016;29:288-96.
Sultan P, Weiniger CF, Carvalho B. Neuraxial blockade increases external cephalic version success: a well-known finding needing to be disseminated within the obstetric domain. Am J Obstet Gynecol. 2016;215:675-6.
Sultan P, David AL, Fernando R, Ackland GL. Inflammation and epidural-related maternal fever: proposed mechanisms. Anesth Analg. 2016;122:1546-53.
Sutton C, Butwick A. Can extra carbs improve perinatal outcomes? BJOG. 2016;123:518
Tawfik V, Flood P. Electrical synapses: high-speed communication in the maintenance of neuropathic pain. Anesthesiology. 2016;124:13-5.
Terkawi AS, Mavridis D, Flood P, Wetterslev J, Terkawi RS, Bin Abdulhak AA, Nunemaker MS, Tiouririne M. Does ondansetron modify sympathectomy due to subarachnoid anesthesia?: Meta-analysis, meta-regression, and trial sequential analysis. Anesthesiology. 2016;124:846-69.
Traynor AJ, Aragon M, Gosh D, Choi R, Dingmann C, Bucklin BA. The obstetric anesthesia workforce survey: a 30-year update. Anesth Analg. 2016;122:1939-46.
Van de Velde M, Carvalho B. Remifentanil for labor analgesia: an evidence-based narrative review. Int J Obstet Anesth. 2016;25:66-74.
Weiniger CF, Sultan P, Dunn A, Carvalho B. Survey of external cephalic version for breech presentation and neuraxial blockade use. J Clin Anesth. 2016;34:616-22.

2015 (35 Articles)

Anast N, Kwok J, Carvalho B, Lipman S, Flood P. Intact survival after obstetric hemorrhage and 55 minutes of cardiopulmonary resuscitation. A A Case Rep. 2015;5:9-12.
Beswick DM, Collins J, Nekhendzy V, Damrose EJ. Chondronecrosis of the larynx following use of the laryngeal mask airway. Laryngoscope. 2015;125:946-9.
Blumenfeld YJ, El-Sayed YY, Lyell DJ, Nelson LM, Butwick AJ. Risk factors for prolonged postpartum length of stay following cesarean delivery. Am J Perinatol. 2015;32:825-32.
Brookfield KF, El-Sayed YY, Chao L, Berger V, Naqvi M, Butwick AJ. Antenatal corticosteroids for preterm premature rupture of membranes: single or repeat course? Am J Perinatol. 2015;32:537-44.
Butwick A, Blumenfeld Y, El-Sayed YY, Osmundson SS, Weiniger CF. Mode of anaesthesia for preterm caesarean delivery: secondary analysis from the Maternal-Fetal Medicine Units Network Caesarean Registry. Br J Anaesth. 2015;115:267-74.
Butwick AJ, Carvalho B, Blumenfeld YJ, El-Sayed YY, Nelson LM, Bateman BT. Second-line uterotonics and the risk of hemorrhage-related morbidity. Am J Obstet Gynecol. 2015;212:e1-7.
Butwick A, Columb M, Carvalho B. Vasopressors and spinal hypotension during cesarean delivery: what’s the latest? Br J Anaesth. 2015;114:183-6.
Butwick A, Goodnough LT. Transfusion and coagulation management in major obstetric hemorrhage. Curr Opin Anaesthesiol. 2015;28:275-84.
Butwick A, Gutierrez M, Hilton G. The impact of advanced maternal age on peripartum thromboelastographic coagulation profiles: a prospective observational exploratory study. Can J Anaesth. 2015;62:504-12.
Camann W, McGovern C, Collins M, Baysinger C, Vallejo M, Anderson J, Wood C, Hawkins JL, Carvalho B, Rollins M, Bishop J, Brumley J. How to say “YES” to nitrous oxide for labor. SOAP Newsletter, Summer 2015.
Carvalho B, Dyer RA. Norepinephrine for spinal hypotension during cesarean delivery: another paradigm shift? Anesthesiology. 2015;122:728-30.
Carvalho B, Wong C. Drug labeling in the practice of obstetric anesthesia. Am J Obstet Gynecol. 2015;212:24-7.
Carvalho B, Yun RD, Mariano ER. Continuous versus single-Injection peripheral nerve blocks: a pilot study comparing procedural time and estimated personnel cost. The Open Anesthesia Journal 2015;9:1-5.
Cobb B, Lipman S. An update on the American Heart Association Scientific Statement on Cardiac Arrest in Pregnancy. Published in Circulation October 2015. SOAP Newsletter, Winter 2015.
Creanga AA, Bateman BT, Butwick AJ, Rayleigh L, Maeda A, Kuklina E, Callaghan WM. Morbidity associated with cesarean delivery in the United States: is placenta accreta an increasingly important contributor? Am J Obstet Gynecol. 2015;213:384.e1-11.
Edwards MR, Sultan P, Gutierrez Del Arroyo A, Whittle J, Karmali SN, Moonesinghe SR, Haddad FS, Mythen MG, Singer M, Ackland GL. Metabolic dysfunction in lymphocytes promotes postoperative morbidity. Clin Sci (Lond). 2015;129:423-437.
Elkomy MH, Sultan P, Clavijo C, Galinkin JL, Carvalho B, Drover DR. Ondansetron pharmacokinetics in pregnant women and neonates: towards a new treatment for neonatal abstinence syndrome. Clin Pharmacol Ther. 2015;97:167-76.
Flood P, Dexter F, Ledolter J and Dutton RP. Large heterogeneity in mean durations of labor analgesia among hospitals reporting to the American Society of Anesthesiologist’s Anesthesia Quality Institute. Anesth Analg. 2015;121:1283-9.
Flood P, McKinley P, Monk C, Muntner P, Colantonio L, Goetzl L, Hatch M, Sloan R. Beat-to-beat heart rate and blood pressure variability and hypertensive disease in pregnancy. Am J Perinatol. 2015;32:1050-8.
Girsen AI, Greenberg MB, El-Sayed YY, Carvalho B, Lyell DJ. Magnesium sulfate exposure and neonatal intensive care unit admission. J Perinatol. 2015;35:181-5.
Golovanevski L, Ickowicz DE, Sokolsky-Papkov M, Domb AJ, Weiniger CF. Biocompatibility of an extended release bupivacaine formulation following site-directed nerve injection. J Bioact Compat Polym. 2015;30:114-125.
Jeejeebhoy FM, Zelop CM, Lipman S, Carvalho B, Joglar J, Mhyre JM, Katz VL, Lapinsky SE, Einav S, Warnes CA, Page RL, Griffin RE, Jain A, Dainty KN, Arafeh J, Windrim R, Koren G, Callaway C. Cardiac arrest in pregnancy: a scientific statement from the American Heart Association. Circulation. 2015;132:1747-73.
Karmali S, Jenkins N, Sciusco A, John J, Haddad F, Ackland GL; POM-X Study Investigators (Reyes A, Davies K, Edwards J, Whittle J, Barnett S, Moonesinghe S, Wyndham D, Bettini E, Lee S, Sultan P, Edwards M, Cain D, del Arroyo A). Randomized controlled trial of vagal modulation by sham feeding in elective non-gastrointestinal (orthopaedic) surgery. Br J Anaesth. 2015;115:727-35.
Li Y, Flood P, Cornes S. Electroencephalography of seizure-like movements during general anesthesia with propofol: seizures or nonepileptic events? A A Case Rep. 2015;5:195-8.
Liu YM, Patel SD, Mon W, Fernando R, Columb M, Sultan P. Maternal fever and epidural insertion: an OAA approved survey. Int J Obstet Anesth. 2015;24:S28.
Paech M, Sng BL, Sia A, Ng L, Nathan E, Carvalho B. Methylnaltrexone to prevent intrathecal morphine-induced pruritus after caesarean delivery: a multicenter randomized clinical trial. Br J Anaesth. 2015;114:469-76.
Rhee KY, Goetzl L, Unal R, Cierny J, Flood P. Relationship between plasma inflammatory cytokines and labor pain. Anesth Analg. 2015;121:748-51.
Rodriguez CI, Kegeles LS, Levinson A, Ogden R, Mao X, Milak MS, Vermes D, Xie S, Hunter L, Flood P, Moore H, Shungu DC, Simpson HB. In vivo effects of ketamine on glutamate-glutamine and gamma-aminobutyric acid in obsessive-compulsive disorder. Psychiatry Res. 2015;233:141-7.
Soltanifar D, Bogod D, Harrison S, Carvalho B, Sultan P. A survey of accepted practice following failed intubation for emergency caesarean delivery. Anesthesiol Res Pract. 2015;2015:192315.
Soltanifar D, Carvalho B, Sultan P. Perioperative considerations of the patient with malaria. Can J Anaesth. 2015;62:304-18.
Soltanifar D, Jacobs M, Jones T, McGlennan A, Sultan P. Spinal anaesthesia for emergency caesarean delivery in a parturient with falciparum malaria. Int J Obstet Anesth. 2015;24:91.
Sultan P, Habib AS, Cho Y, Carvalho B. The effect of patient warming during caesarean delivery on maternal and neonatal outcomes: a meta-analysis. Br J Anesth. 2015;115:500-10.
Valentine AR, Carvalho B, Lazo TA, Riley ET. Scheduled acetaminophen with as-needed opioids compared to as-needed acetaminophen plus opioids for post-cesarean pain management. Int J Obstet Anesth. 2015;24:210-6.
Weiniger CF, Ezra Y, Dunn AL, Carvalho B. The utilization of spinal anesthesia for external cephalic version: a clinical practice cohort analysis. Int J Obstet Anesth. 2015;24:389-90.
Wen L, Hilton G, Carvalho B. The impact of breastfeeding on maternal pain after vaginal and cesarean delivery. J Clin Anesth. 2015;27:33-8.

2014 (37 Articles)

Ahsan ZS, Carvalho B, Yao J. Incidence of failure of continuous peripheral nerve catheters for postoperative analgesia in upper extremity surgery. J Hand Surg Am. 2014;39:324-9.
Austin N, Krishnamoorthy V, Dagal A. Airway management in cervical spine injury. Int J Crit Illn Inj Sci. 2014;4:50-6.
Bateman BT, Tsen LT, Liu J, Butwick AJ, Huybrechts KF. Patterns of second-line uterotonic utilization in a large sample of delivery admissions in the United States. Anesth Analg. 2014;119:1344-9.
Botto F, ... Sultan P, ... Wildes T. Vascular events in noncardiac surgery patients cohort evaluation (VISION) Writing Group. Myocardial Injury after noncardiac Surgery: a large, international, prospective cohort study establishing diagnostic criteria, characteristics, predictors, and 30-day outcomes. Anesthesiology. 2014;120:564-78.
Butwick AJ, Carvalho B, El-Sayed YY. Risk factors for severe obstetric morbidity in patients with uterine atony undergoing cesarean delivery. Br J Anaesth. 2014;113:661-8.
Butwick AJ, Hass C, Wong J, Lyell D, El-Sayed Y. Retrospective study of peripartum and anesthetic outcomes in anticoagulated parturients. Int J Obstet Anesth. 2014;23:238-45.
Caballero JA, Butwick AJ, Carvalho B, Riley ET. Preferred spoken language mediates differences in neuraxial labor analgesia utilization among racial and ethnic groups. Int J Obstet Anesth. 2014;23:161-7.
Carvalho B. Strategies to optimize post-cesarean delivery analgesia. American Society of Anesthesiologists (ASA) refresher courses in anesthesiology. 2014 Volume 42.
Carvalho B, Derby R, Horn JL. “Pseudo” shearing of a peripheral nerve catheter for interscalene block. Reg Anesth Pain Med. 2014;39:556-7.
Carvalho B, Hilton G, Wen L, Weiniger CF. Prospective longitudinal cohort questionnaire assessment of laboring women's preference both pre- and post-delivery for either reduced pain intensity for a longer duration or greater pain intensity for a shorter duration. Br J Anaesth. 2014;113:468-73.
Carvalho B, Zheng M, Aiono-Le Tagaloa L. A prospective observational study evaluating the ability of prelabor psychological tests to predict labor pain, epidural analgesic consumption, and maternal satisfaction. Anesth Analg. 2014;119:632-40.
Cho Y, Carvalho B, Butwick A, Blumenfeld Y, Riley E. Elective caesarean section at 38 weeks versus 39 weeks: neonatal and maternal outcomes in a randomised controlled trial. BJOG. 2014;121:1748.
Cierny JT, Unal ER, Flood P, Rhee KY, Praktish A, Olson TH, Goetzl L. Maternal inflammatory markers and term labor performance. Am J Obstet Gynecol. 2014;210;447.e1-6.
D'Angelo R, Smiley RM, Riley ET, Segal S. Serious complications related to obstetric anesthesia: the serious complication repository project of the society for obstetric anesthesia and perinatology. Anesthesiology. 2014;120:1505-12.
Daniels K, Oakeson A, Hilton G. Steps toward a national disaster plan for obstetrics. Obstet Gynecol. 2014;124:154-8.
Ducloy-Bouthors AS, Susen S, Wong CA, Butwick A, Vallet B, Lockhart E. Medical advances in the treatment of postpartum hemorrhage. Anesth Analg. 2014;119:1140-7.
17. Elkomy MH, Sultan P, Drover DR, Ekaterina E, Galinkin JL, Carvalho B. Pharmacokinetics of prophylactic cefazolin in parturients undergoing cesarean delivery. Antimicrob Agents Chemother. 2014;58:3504-13.
Flood P, Clark DJ. Genetic variability in the activity of monoamines: a window into the complexity of pain. Anesth Analg. 2014;119:1032-8.
Flood P, Damaj MI. Nicotine is out: nicotinic agonists may have utility as analgesics. Anesth Analg. 2014;119:232-3.
Flood P. Editorial commentary: "Progressive encephalomyelitis with rigidity and myoclonus: anesthesia and glycine receptor antibodies". A A Case Rep. 2014;2:86-7.
Flood P, Raja SN. Balance in opioid prescription during pregnancy. Anesthesiology. 2014;120:163-4.
Ickowicz DE, Golovanevski L, Domb AJ, Weiniger CF. Extended duration local anesthetic agent in a rat paw model. Int J Pharm. 2014;468:152-7.
Ickowicz DE, Golovanevski L, Haze E, Domb AJ, Weiniger CF. Extended release local anesthetic agents in a postoperative arthritic pain model. J Pharm Sci. 2014;103:185-90.
Ickowicz DE, Haim-Zada M, Abbas R, Touitou D, Nyska A, Golovanevski L, Weiniger CF, Katzhendler J, Domb AJ. Castor oil-citric acid co-polyester for tissue augmentation. Polym Adv Technol. 2014;25:SI1323-8.
Kabiri D, Hants Y, Simons M, Shanwetter N, Weiniger CF, Gielchinsky Y, Ezra Y. Outcomes of subsequent pregnancies after conservative treatment for placenta accreta. Int J Gynaecol Obstet. 2014;127:206-10.
Lipman S, Cohen S, Einav S, Jeejeebhoy F, Mhyre JM, Morrison LJ, Katz V, Tsen LC, Daniels K, Halamek LP, Suresh MS, Arafeh J, Gauthier D, Carvalho JC, Druzin M, Carvalho B. The Society for Obstetric Anesthesia and Perinatology consensus statement on the management of cardiac arrest in pregnancy. Anesth Analg. 2014;118:1003-16.
Mariano ER, Yun RD, Kim TE, Carvalho B. Application of echogenic technology for catheters used in ultrasound-guided continuous peripheral nerve blocks. J Ultrasound Med. 2014;33:905-11.
Peer L, Brezis ML, Shalit M, Carvalho B, Philip LD, Seri O, Weiniger CF. Evaluation of a prospectively administered written questionnaire to reduce the reported incidence of suspected latex anaphylaxis during elective cesarean delivery. Int J Obstet Anesth. 2014;23:335-40.
Sharoni L, Weiniger CF. Anesthesia and external cephalic version. Curr Anesthesiol Rep. 2014;5:91-9.
Soltanifer D, Afzal S, Harrison S, Sultan P. Caesarean delivery in a parturient with type III hereditary angioedema. Int J Obstet Anesth. 2014;23:398-9.
Stocki D, Matot I, Einav S, Eventov-Friedman S, Ginosar Y, Weiniger CF. A randomized controlled trial of the efficacy and respiratory effects of patient-controlled intravenous remifentanil analgesia and patient-controlled epidural analgesia in laboring women. Anesth Analg. 2014;118:589-7.
Sultan P, Edwards MR, Gutierrez Del Arroyo A, Cain D, Sneyd JR, Struthers R, Minto G, Ackland GL. Cardiopulmonary exercise capacity and preoperative markers of inflammation. Mediators Inflamm. 2014;2014:727451.
Terkawi AS, Jackson, WM, Hansoti, S, Tabassum R, Flood P. Polymorphism in the ADRB2 gene explains a small portion of inter-subject variability in pain relative to cervical dilation in the first stage of labor. Anesthesiology. 2014;121:140-8.
Udani A, Wang T, Hilton G, Harrison K. Physiology of pregnancy and postpartum hemorrhage: an innovative, interactive teaching approach. MedEdPORTAL Publications; 2014. Available from: https://www.mededportal.org/publication/9987.
Weiniger CF, Carvalho B. The dilemma of vaginal breech delivery worldwide. Lancet. 2014;384:1183.
Weiniger CF, Carvalho B. Analgesia following cesarean delivery: "Sometimes it takes a painful experience to make us change our ways" (proverbs 20:30). Isr Med Assoc J. 2014;16:171-2.
Weiniger CF, Spencer PS, Weiss Y, Ginsberg G, Ezra Y. Reducing the cesarean delivery rates for breech presentations: administration of spinal anesthesia facilitates manipulation to cephalic presentation, but is it cost saving? Isr J Health Policy Res. 2014;3:5.

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