Abbas Haider Zaidi, MD


Nemours Children's Hospital, Delaware 1600 Rockland Road Wilmington, DE 19803


Dr. Abbas H. Zaidi, MD, is a pediatric cardiologist serving as the medical director of the outpatient cardiology at Nemours Children's Health in Wilmington, DE. He completed his medical school at Aga Khan University in Karachi, Pakistan, residency at Emory University in Atlanta, and Cardiology Fellowship at Boston Children's Hospital, including a senior fellowship in cardiac pathology and outpatient cardiology. He worked as an attending at Boston Medical Center before joining Nemours in 2020. He has vast experience caring for diverse patients from rural villages in Pakistan to inner-city urban populations at Boston Medical Center. His research interests include understanding gaps in care with follow-up adherence for patients and how they relate to social determinants of health. He is a learning health systems researcher and was awarded a K12 grant through AHRQ as part of the PEDSnet collaborative. He is also part of the Quality Improvement and Patient Safety (QIPS) course at Thomas Jefferson University and working on obtaining a Master's in population health by 2024. Dr. Zaidi's current research project is improving hypertension detection using implementation science. The first aim is to understand the barriers and facilitators to hypertension recognition through interviews with diverse caregivers, care providers, and hospital leadership. This will then be used to develop a toolkit of strategies and interventions developed by a multi-stakeholder team, including diverse patients and families. Then the toolkit of strategies will be tested for acceptability and feasibility by the diverse caregivers and care providers. The eventual goal of this project is to develop a learning health system at Nemours by creating a system for hypertension recognition that is evolving, sustainable and translatable across the Nemours enterprise.


  • Pediatric Cardiology - Boston Childrens Hospital, 2019
  • Ped. Outpatient Cardiology - Boston Childrens Hospital, 2020
  • Congenital Cardiac Pathology - Boston Childrens Hospital, 2013


  • The Children's Hospital Pakistan Inst., Med. Serv, 2012

Internship Residency

  • General Pediatrics - Egleston Children's Hospital At Emory University, 2016

Medical/Dental School

  • MD - Aga Khan University, 2010

Board Certifications

  • American Board of Pediatrics/General Pediatrics
  • American Board of Pediatrics/Pediatric Cardiology

  • Prevalence of High Blood Pressure Among Youth in India and Association With Future Cardiovascular Disease; JAMA network open; (2022).

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  • Clinical syndromic phenotypes and the potential role of genetics in pulmonary vein stenosis; Children; (2021).

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  • Ascending aorta size at birth predicts white matter microstructure in adolescents who underwent fontan palliation; Journal of the American Heart Association; (2018).

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  • Echocardiographic characteristics of annulo-leaflet mitral ring; Journal of the American Society of Echocardiography; (2015).

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  • Postmortem imaging in congenital heart disease: Preliminary experience; Acta Radiologica; (2015).

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  • Giant aneurysm of the atrial appendages in infants; Annals of Pediatric Cardiology; (2014).

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  • Preliminary experience with porcine intestinal submucosa (CorMatrix) for valve reconstruction in congenital heart disease: Histologic evaluation of explanted valves; Journal of Thoracic and Cardiovascular Surgery; (2014).

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  • Effect of percutaneous mitral vavuloplasty on pregnant mother and foetus - a tertiary care hospital experience from a developing country; Journal of the Pakistan Medical Association; (2011).

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