BFAM Member Spotlights

Meet the members of the Stanford Medicine Black Faculty Affinity Meetings (BFAM), a network created through OFDD's Community Support Initiative. BFAM is intended to provide networking and social engagement opportunities for Stanford Medicine faculty across all clinical lines and departments.

Maame Yaa "Maya" A. B. Yiadom, MD, MPH, MSCI

Emergency Medicine

Vice Chair of Research

Research Interests
Health Care Delivery, Clinical Operations, Time-Sensitive Conditions, Health Services Research

What are some of your favorite restaurants?
Mendocino Farms, Back-a-Yard Carribean Grill, any place with street tacos

What are some of your favorite social activities?
Family 5K runs, beaches, anything involving other people. We moved here through the pandemic.

Full Stanford Profile

Associate Professor of Emergency Medicine (Adult Clinical/Academic)

myiadom@stanford.edu

Bio

Dr. Yiadom is an Associate Professor of Emergency Medicine at Stanford University and researcher with expertise in emergency care clinical operations and timely emergency care delivery. She was first trained in health care policy in Princeton University’s School of Public and International Affairs. She subsequently worked as a healthcare industry management consultant here in New York City for CSC Global Health Solutions Group, and was the Dean’s Office Chief of Staff at Drexel Medical School in Philadelphia. She completed her medical education at Robert Wood Johnson Medical School, a Masters in Public Health (MPH) at Harvard with additional health policy training from Johns Hopkins. She subsequently did residency at Mass General and Brigham and Women’s Hospitals’ Harvard affiliated program, and completed a Masters of Science in Clinical Investigation (MSCI) at Vanderbilt University. Dr. Yiadom is the Principal Investigator for the Stanford Emergency Care Health Services Research Data Coordinating Center (HSR-DCC). Her research focuses on applications of evidence-based medicine to optimize clinical operations to target patient pathophysiology for time-sensitive conditions. STEMI is her prototype disease. Her group's primary methodologies include clinical practice epidemiology, workflow variability analysis, and clinically applied artificial intelligence. Current work includes refining clinical process, using informatics to support evidence-based practice, and performance measurement to identify real-world care improvement opportunities. Her research is supported by the National Heart Lung and Blood Institute (NHLBI), and ED Benchmarking Alliance. She is the Founding Director of the Emergency Department Operations Study Group (EDOSG), and on the Board of Directors for the Emergency Department Benchmarking Alliance (EDBA). The lab website is: https://yiadom-hsrdcc.com Her interest in population health via emergency care have extended to Haiti, Guyana and Ghana. She and her husband Ryan Van Cleave (Airforce veteran, elementary school teacher, a training pilot, and Northern California native) have 3 children.

Publications

Stanford Emergency Medicine Partnership Program: a novel approach to streamlining the evaluation and implementation of emerging health technologies through academic-industry partnerships BMJ INNOVATIONS Dayton, J., Yiadom, M. B., Shen, S., Strehlow, M. C., Rose, C., Bunney, G., Ribeira, R. 2024 More

View details for DOI 10.1136/bmjinnov-2023-001154

View details for Web of Science ID 001251125300001
Shorter Door-to-ECG Time Is Associated with Improved Mortality in STEMI Patients. Journal of clinical medicine Yiadom, M. Y., Gong, W., Bloos, S. M., Bunney, G., Kabeer, R., Pasao, M. A., Rodriguez, F., Baugh, C. W., Mills, A. M., Gavin, N., Podolsky, S. R., Salazar, G. A., Patterson, B., Mumma, B. E., Tanski, M. E., Liu, D. 2024; 13 (9) More

Abstract

Background: Delayed intervention for ST-segment elevation myocardial infarction (STEMI) is associated with higher mortality. The association of door-to-ECG (D2E) with clinical outcomes has not been directly explored in a contemporary US-based population. Methods: This was a three-year, 10-center, retrospective cohort study of ED-diagnosed patients with STEMI comparing mortality between those who received timely (<10 min) vs. untimely (>10 min) diagnostic ECG. Among survivors, we explored left ventricular ejection fraction (LVEF) dysfunction during the STEMI encounter and recovery upon post-discharge follow-up. Results: Mortality was lower among those who received a timely ECG where one-week mortality was 5% (21/420) vs. 10.2% (26/256) among those with untimely ECGs (p = 0.016), and in-hospital mortality was 6.0% (25/420) vs. 10.9% (28/256) (p = 0.028). Data to compare change in LVEF metrics were available in only 24% of patients during the STEMI encounter and 46.5% on discharge follow-up. Conclusions: D2E within 10 min may be associated with a 50% reduction in mortality among ED STEMI patients. LVEF dysfunction is the primary resultant morbidity among STEMI survivors but was infrequently assessed despite low LVEF being an indication for survival-improving therapy. It will be difficult to assess the impact of STEMI care interventions without more consistent LVEF assessment.

View details for DOI 10.3390/jcm13092650

View details for PubMedID 38731180

View details for PubMedCentralID PMC11084706
Changes in low-acuity patient volume in an emergency department after launching a walk-in clinic. Journal of the American College of Emergency Physicians open Kurian, D., Sundaram, V., Naidich, A. G., Shah, S. A., Ramberger, D., Khan, S., Ravi, S., Patel, S., Ribeira, R., Brown, I., Wagner, A., Gharahbhagian, L., Miller, K., Shen, S., Yiadom, M. Y. 2023; 4 (4): e13011 More

Abstract

Unscheduled low-acuity care options are on the rise and are often expected to reduce emergency department (ED) visits. We opened an ED-staffed walk-in clinic (WIC) as an alternative care location for low-acuity patients at a time when ED visits exceeded facility capacity and the impending flu season was anticipated to increase visits further, and we assessed whether low-acuity ED patient visits decreased after opening the WIC.In this retrospective cohort study, we compared patient and clinical visit characteristics of the ED and WIC patients and conducted interrupted time-series analyses to quantify the impact of the WIC on low-acuity ED patient visit volume and the trend.There were 27,211 low-acuity ED visits (22.7% of total ED visits), and 7,058 patients seen in the WIC from February 26, 2018, to November 17, 2019. Low-acuity patient visits in the ED reduced significantly immediately after the WIC opened (P = 0.01). In the subsequent months, however, patient volume trended back to pre-WIC volumes such that there was no significant impact at 6, 9, or 12 months (P = 0.07). Had WIC patients been seen in the main ED, low-acuity volume would have been 27% of the total volume rather than the 22.7% that was observed.The WIC did not result in a sustained reduction in low-acuity patients in the main ED. However, it enabled emergency staff to see low-acuity patients in a lower resource setting during times when ED capacity was limited.

View details for DOI 10.1002/emp2.13011

View details for PubMedID 37484497

View details for PubMedCentralID PMC10361543
Maximizing Equity in Acute Coronary Syndrome Screening across Sociodemographic Characteristics of Patients. Diagnostics (Basel, Switzerland) Bunney, G., Bloos, S. M., Graber-Naidich, A., Pasao, M. A., Kabeer, R., Kim, D., Miller, K., Yiadom, M. Y. 2023; 13 (12) More

Abstract

We compared four methods to screen emergency department (ED) patients for an early electrocardiogram (ECG) to diagnose ST-elevation myocardial infarction (STEMI) in a 5-year retrospective cohort through observed practice, objective application of screening protocol criteria, a predictive model, and a model augmenting human practice. We measured screening performance by sensitivity, missed acute coronary syndrome (ACS) and STEMI, and the number of ECGs required. Our cohort of 279,132 ED visits included 1397 patients who had a diagnosis of ACS. We found that screening by observed practice augmented with the model delivered the highest sensitivity for detecting ACS (92.9%, 95%CI: 91.4-94.2%) and showed little variation across sex, race, ethnicity, language, and age, demonstrating equity. Although it missed a few cases of ACS (7.6%) and STEMI (4.4%), it did require ECGs on an additional 11.1% of patients compared to current practice. Screening by protocol performed the worst, underdiagnosing young, Black, Native American, Alaskan or Hawaiian/Pacific Islander, and Hispanic patients. Thus, adding a predictive model to augment human practice improved the detection of ACS and STEMI and did so most equitably across the groups. Hence, combining human and model screening--rather than relying on either alone--may maximize ACS screening performance and equity.

View details for DOI 10.3390/diagnostics13122053

View details for PubMedID 37370948

View details for PubMedCentralID PMC10297640
Variation in ACS patient hospital resource utilization: Is it time for advanced NSTEMI risk stratification in the ED? The American journal of emergency medicine Saxena, M., Bloos, S. M., Graber-Naidich, A., Sundaram, V., Pasao, M., Yiadom, M. Y. 2023; 70: 171-174 More

Abstract

A majority of patients who experience acute coronary syndrome (ACS) initially receive care in the emergency department (ED). Guidelines for care of patients experiencing ACS, specifically ST-segment elevation myocardial infarction (STEMI) are well defined. We examine the utilization of hospital resources between patients with NSTEMI as compared to STEMI and unstable angina (UA). We then make the case that as NSTEMI patients are the majority of ACS cases, there is a great opportunity to risk stratify these patients in the emergency department.We examined hospital resource utilization measure between those with STEMI, NSTEMI, and UA. These included hospital length of stay (LOS), any intensive care unit (ICU) care time, and in-hospital mortality.The sample included 284,945 adult ED patients, of whom 1195 experienced ACS. Among the latter, 978 (70%) were diagnosed with NSTEMI, 225 (16%) with STEMI, and 194 with UA (14%). We observed 79.1% of STEMI patients receiving ICU care. 14.4% among NSTEMI patients, and 9.3% among UA patients. NSTEMI patients' mean hospital LOS was 3.7 days. This was shorter than that of non-ACS patients 4.75 days and UA patients 2.99. In-hospital mortality for NSTEMI was 1.6%, compared to, 4.4% for those with STEMI patients and 0% for UA. There are recommendations for risk stratification among NSTEMI patients to evaluate risk for major adverse cardiac events (MACE) that can be used in the ED to guide admission decisions and use of ICU care, thus optimizing care for a majority of ACS patients.

View details for DOI 10.1016/j.ajem.2023.05.028

View details for PubMedID 37327683

see all 40 publications

BFAM Member Spotlights

Maame Yaa "Maya" A. B. Yiadom, MD, MPH, MSCI

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