Mitral Stenosis and Aortic Atresia-A Risk Factor for Mortality After the Modified Norwood Operation in Hypoplastic Left Heart Syndrome.
Annals of thoracic surgery
2016; 101 (1): 162-167
Mitral Stenosis and Aortic Atresia-A Risk Factor for Mortality After the Modified Norwood Operation in Hypoplastic Left Heart Syndrome
ANNALS OF THORACIC SURGERY
2016; 101 (1): 162-168
Contemporaneous comparison of the Yasui and Norwood procedures at a single institution.
journal of thoracic and cardiovascular surgery
2015; 149 (2): 508-513
There are conflicting reports regarding the importance of mitral stenosis and aortic atresia as a risk factor for Norwood mortality. This study reviews outcomes of this anatomic subgroup at our institution and examines the utility of preoperative cardiac catheterization and its correlation with clinical outcomes and pathology findings.This is a single-center, retrospective review of hypoplastic left heart syndrome patients who underwent modified Norwood operation between October 2005 and May 2013.Fourteen of 74 hypoplastic left heart syndrome patients (19%) had mitral stenosis and aortic atresia. Operative mortality for MS/AA was 29% versus 7% for all other hypoplastic left heart syndrome anatomic subgroups (p = 0.04). Although only 19% of the entire cohort, the mitral stenosis and aortic atresia subgroup constituted 50% of the total operative mortality and the only interstage deaths. Autopsies support myocardial ischemia as the mechanism of death. Although preoperative angiography defined the presence of ventriculo-coronary connections, it did not clearly risk stratify patients in regard to operative mortality.Mitral stenosis and aortic atresia is a risk factor for perioperative myocardial ischemia and mortality. Further exploration of myocardial reserve is warranted.
View details for DOI 10.1016/j.athoracsur.2015.09.056
View details for PubMedID 26602002
Home monitoring program reduces interstage mortality after the modified Norwood procedure.
journal of thoracic and cardiovascular surgery
2014; 147 (2): 718-23 e1
It is recognized that there are numerous anatomic variants that result in hypoplastic left heart physiology. One such variant includes critical aortic stenosis or atresia, a hypoplastic aortic arch, and a reasonably well-developed left ventricle due to the presence of a ventricular septal defect. These patients are candidates for 1 of 3 surgical options: (1) a Norwood procedure followed by a single-ventricle pathway; (2) a Norwood procedure followed by a Rastelli procedure (2-stage Yasui); or (3) a single-stage Yasui procedure. Because 2 of the 3 options include a Norwood procedure as the initial step, the purpose of this study was to evaluate the contemporaneous results of the Yasui and Norwood procedures at a single institution.This was a retrospective review of patients who underwent a Yasui or Norwood procedure at Lucile Packard Children's Hospital between 2004 and 2013. Eighteen patients underwent a Yasui, of whom 15 had a single-stage procedure and 3 had a 2-stage procedure. During this time frame, 113 patients underwent a Norwood procedure. Kaplan-Meier survival curves and freedom from reoperation were compared for the 2 procedures.The operative mortality (using the Society of Thoracic Surgeons definition) for the single-stage Yasui was 6.7% compared with 16% for the Norwood procedure (P < .05); survival was 85% versus 62% at 1 year, 85% versus 60% at 3 years, and 85% versus 58% at 5 years, respectively (log-rank P = .06). The average interval to first reoperation was 13.5 ± 3 months versus 4.5 ± 1 months for the Yasui and Norwood procedures, respectively (P < .001).The Yasui procedure had a significantly lower operative mortality compared with the Norwood procedure. Early and midterm survival was also higher in the Yasui group versus the Norwood followed by a single ventricle pathway. These results indicate that the Yasui procedure has significant midterm benefits compared with the Norwood procedure and should be pursued when the anatomy is amenable for this approach.
View details for DOI 10.1016/j.jtcvs.2014.09.120
View details for PubMedID 25451485
Home monitoring program reduces interstage mortality after the modified Norwood procedure
JOURNAL OF THORACIC AND CARDIOVASCULAR SURGERY
2014; 147 (2): 718-?
One hundred useful references in pediatric cardiac intensive care: the 2012 update.
Pediatric critical care medicine
2013; 14 (8): 770-785
BACKGROUND: From 2002 to 2005, the interstage mortality after a modified Norwood procedure was 7% in our program. An interstage home monitoring program (HMP) was established to identify Norwood procedure patients at increased risk of decompensation and to reduce interstage mortality. METHODS: Results of the first 5 years of the Norwood HMP were reviewed retrospectively. Interstage was defined as the time between Norwood hospital discharge and admission for second stage surgical palliation. In the HMP, families documented oxygen saturation, heart rate, weight, and feedings daily. Nurse practitioners called each family at least weekly, and when issues arose, action plans were determined based on symptom severity. RESULTS: Between October 2005 and October 2010 there were 46 Norwood procedure patients who survived to hospital discharge. All were enrolled in the HMP. Forty-five patients had a Norwood procedure with right ventricle to pulmonary artery conduit, and 1 patient had a modified Blalock-Taussig shunt. Interstage survival was 100%. Nineteen patients (41%) were admitted interstage; 5 patients were admitted twice, 1 patient was admitted 4 times. Seventeen patients (37%) required interstage interventions. Eight patients (17%) required major interventions: conduit stenting, aortic arch balloon angioplasty, emergent shunt, or early Glenn surgery. Minor interventions included supplemental oxygen, blood transfusion, intravenous hydration, diuresis, anti-arrhythmic therapy, or feeding adjustments. CONCLUSIONS: In the first 5 years of the HMP, all infants discharged after a modified Norwood procedure survived the interstage period. The HMP altered clinical management in 37% of patients. Home monitoring of oxygen saturation, heart rate, weight, and feedings, along with comprehensive care coordination, allowed timely interventions and reduced interstage mortality from 7% to 0%.
View details for DOI 10.1016/j.jtcvs.2013.04.006
View details for PubMedID 23663957
Implementation of a Comprehensive Interdisciplinary Care Coordination of Infants and Young Children on Berlin Heart Ventricular Assist Devices
JOURNAL OF CARDIOVASCULAR NURSING
2011; 26 (3): 231-238
The specialty of pediatric cardiac critical care has undergone rapid scientific and clinical growth in the last 25 years. The Board of Directors of the Pediatric Cardiac Intensive Care Society assembled an updated list of sentinel references focused on the critical care of children with congenital and acquired heart disease. We encouraged board members to select articles that have influenced and informed their current practice or helped to establish the standard of care. The objective of this article is to provide clinicians with a compilation and brief summary of these updated 100 useful references.The list of 'One Hundred Useful References for Pediatric Cardiac Intensive Care' (2004) and relevant literature to the practice of cardiac intensive care.A subset of Pediatric Cardiac Intensive Care Society board members compiled the initial list of useful references in 2004, which served as the basis of the new updated list. Suggestions for relevant articles were submitted by the Pediatric Cardiac Intensive Care Society board members and selected pediatric cardiac intensivists with an interest in this project following the Society's meeting in 2010. Articles were considered for inclusion if they were named in the original list from 2004 or were suggested by Pediatric Cardiac Intensive Care Society board members and published before December 31, 2011.Following submission of the complete list by the Pediatric Cardiac Intensive Care Society board and contributing Society members, articles were complied by the two co-first authors (D.A., D.K.). The authors also performed Medline searches to ensure comprehensive inclusion of all relevant articles. The final list was then submitted to the Pediatric Cardiac Intensive Care Society board members, who ranked each publication.Rankings were compiled and the top 100 articles with the highest scores were selected for inclusion in this publication. The two co-first authors (D.A., D.K.) reviewed all existing summaries and developed summaries of the newly submitted articles.An updated compilation of 100 useful references for the critical care of children with congenital and acquired heart disease has been compiled and summarized here. Clinicians and trainees may wish to use this document as a reference for education in this complex and challenging subspecialty.
View details for DOI 10.1097/01.PCC.0000434621.25332.71
View details for PubMedID 24088673
Interagency Registry for Mechanically Assisted Circulatory Support (INTERMACS)-Defined Morbidity and Mortality Associated With Pediatric Ventricular Assist Device Support at a Single US Center The Stanford Experience
2010; 3 (6): 682-688
Young children supported on a ventricular assist device (VAD) can have prolonged hospitalizations awaiting heart transplantation. The adult VAD literature demonstrates that comprehensive programs optimize transplantation outcomes. The goal of this intervention was to create an interdisciplinary program to optimize care coordination and delivery in young children requiring a VAD.This study was a case review.We have supported 8 infants and young children with Berlin Heart VAD. These children's hospitalizations have been more complex than those of our older VAD patients, and they have required intensive care for prolonged periods. An interdisciplinary group evaluated our practices and identified areas for potential improvement. The focus group from our intensive care unit introduced multiple interventions to optimize interdisciplinary care coordination and consistency of practice. These included (1) interdisciplinary care guidelines for chronically, critically ill patients; (2) institution of a primary cardiovascular intensive care unit (CVICU) physician and nurse practitioner system; (3) introduction of a psychological intervention for families to minimize the impact of their extended CVICU stay; (4) implementation of early jejunal feeds; (5) a focused developmental and rehabilitation protocol, 6) implementation of a structured approach to minimizing blood transfusions; (7) increased structure for our interdisciplinary rounds to optimize team communication; (8) comprehensive nursing education including wound care, anticoagulation management, and laboratory draws; and (9) a protocol for off-unit rehabilitative/developmental interventions. These changes in both practice and approach for young VAD patients have also been of benefit to other chronically, critically ill children in the CVICU, as well as to our CVICU team.Comprehensive interdisciplinary care coordination and standardized practice can be achieved in the critical care setting for complex pediatric heart failure patients who require long-term VAD support.
View details for DOI 10.1097/JCN.0b013e3181f29a2e
View details for Web of Science ID 000289404100010
View details for PubMedID 21099697
Annals of thoracic surgery
2006; 81 (4): 1434-1435
The use of ventricular assist devices (VADs) to bridge pediatric patients to heart transplantation has increased dramatically over the last 15 years. In this report, we present the largest US single-center report of pediatric VAD use to date. We present detailed descriptions of morbidity and mortality associated with VAD support, using standard Interagency Registry for Mechanically Assisted Circulatory Support (INTERMACS) criteria for pediatrics to facilitate the comparison of these results to other studies.We retrospectively identified 25 patients younger than 18 years with 27 episodes of mechanical circulatory support using VADs as bridge to heart transplantation from January 1998 to December 2007. Survival to transplant for the entire cohort was 74%. The most common major morbidities, as defined by INTERMACS criteria for a pediatric population, were respiratory failure, major localized infections, major bleeding events, hepatic dysfunction, and right heart failure. Major neurological events occurred in 48% of the study population. The median time to the first occurrence of an adverse event was less than 14 days for respiratory failure, right heart failure, major localized infection, and major bleeding. Patients who died before transplantation had significantly more adverse events per day of support than did those who were successfully transplanted. Episodes of major bleeding, tamponade, acute renal failure, respiratory failure, and right heart failure were all associated with increased risk of mortality.INTERMACS criteria can be successfully used to analyze pediatric VAD outcomes. These data serve as a baseline for future studies of VAD support in children and indicate good survival rates but considerable morbidity.
View details for DOI 10.1161/CIRCHEARTFAILURE.109.918672
View details for Web of Science ID 000284261600011
View details for PubMedID 20807863