A photo of Samuel Wittekind.

Pediatric Cardiologist, Heart Failure & Transplantation and Cardiopulmonary Exercise Lab

Assistant Professor, UC Department of Pediatrics


Board Certified

"My aim is to help patients and families identify their health-related goals and make plans to achieve those goals."

My Biography & Research


I am a pediatric cardiologist who specializes in the care of young patients with heart failure from any number of causes including congenital heart disease, inherited cardiomyopathy and acquired heart disease. I work on an advanced heart failure team that provides individualized treatment for these vulnerable patients.

I went into medicine because I enjoy solving diagnostic puzzles, exploring new therapies and helping people achieve their potential through better health. I enjoy working with children and young adults because of their physical and mental resilience.

In my practice, I use evidence-based care that is truly patient centered. My aim is to help patients and families identify their health-related goals and make plans to achieve those goals.

I am honored to be part of the following organizations and societies:

  • Member, Alpha Omega Alpha (AOA) medical honor society
  • Fellow, American College of Cardiology (ACC)
  • Regional representative, Ohio Association of Cardiovascular and Pulmonary Rehabilitation
  • Committee leader, The Advanced Cardiac Therapies Improving Outcomes Network (ACTION)
  • Site investigator, the Sarcomeric Human Cardiomyopathy Registry (SHaRe).

In addition to caring for patients, I’m involved in research. I am interested in cardiopulmonary fitness as a modifiable risk factor for morbidity and mortality in pediatric heart disease and other chronic conditions, including cancer. I am studying how exercise training can improve outcomes that are important to both patients and the healthcare system.

When I'm not taking care of patients or conducting research, I enjoy spending time playing with my family and friends. I'm also an avid fly fisherman.

Watch a video on the Cardiac Rehabilitation Program at Cincinnati Children's.

Clinical Interests

Pediatric cardiology; cardiomyopathy; heart transplant; mechanical circulatory support; cardiac rehabilitation

Research Interests

Cardiac rehabilitation; sport and exercise medicine; cardiomyopathy; heart transplant

Academic Affiliation

Assistant Professor, UC Department of Pediatrics

Clinical Divisions

Cardiomyopathy, Neuromuscular Cardiology, Neuromuscular Disorders, Cardio Oncology Program

Research Divisions


Blog Posts

FAQs: Cardiac Rehabilitation for Kids

BlogHeart Conditions

FAQs: Cardiac Rehabilitation for Kids

By Sam Wittekind, MD8/10/2020

My Locations

My Education

MD: University of Washington, Seattle, WA, 2010.

Residency: Pediatrics, University of Washington, Seattle, WA, 2013.

Categorical Fellowship: Pediatric Cardiology, Cincinnati Children's Hospital Medical Center, Cincinnati, OH, 2017.

Advanced Fellowship: Heart Failure/Transplant, Cincinnati Children's Hospital Medical Center, Cincinnati, OH, 2018.

My Publications

Clinical characteristics and outcomes in childhood-onset hypertrophic cardiomyopathy. Marston, NA; Han, L; Olivotto, I; Day, SM; Ashley, EA; Michels, M; Pereira, AC; Ingles, J; Semsarian, C; Jacoby, D; et al. European Heart Journal. 2021; 42:1988-1996.

Exercise testing and cardiac rehabilitation in patients treated for cancer. Wittekind, SG; Gilchrist, SC. Journal of Thrombosis and Thrombolysis. 2021; 51:870-876.

Pediatric Cardiology Fellowship Training in Exercise Medicine: A General Needs Assessment. Wittekind, SG; Huang, JH; Ward, K; Koenig, P. Pediatric Cardiology. 2021.

Cardiac medication management in Duchenne muscular dystrophy. Wittekind, SG; Villa, CR. Pediatric Pulmonology. 2021; 56:747-752.

Antithymocyte globulin induction therapy and myocardial complement deposition in pediatric heart transplantation. Ghaleb, S; Wittekind, SG; Martinez, H; Kasten, J; Gao, Z; Hengehold, T; Chin, C. Pediatric Transplantation. 2021.

Variation in Cardiac Rehabilitation for Pediatric Ventricular Assist Device Recipients Across North America. Burstein, DS; McBride, M; Lorts, A; Rosenthal, D; Peng, DM; Lantz, J; Tunuguntla, H; Zinn, M; Curran, T; Wittekind, S. ASAIO Journal. 2021.

Associations Between Female Sex, Sarcomere Variants, and Clinical Outcomes in Hypertrophic Cardiomyopathy. Lakdawala, NK; Olivotto, I; Day, SM; Han, L; Ashley, EA; Michels, M; Ingles, J; Semsarian, C; Jacoby, D; Jefferies, JL; et al. Circulation: Genomic and Precision Medicine. 2021; 14.

Impact of mechanical circulatory support on pediatric heart transplant candidates with elevated pulmonary vascular resistance. Thangappan, K; Morales, DL S; Vu, Q; Lehenbauer, D; Villa, C; Wittekind, S; Hirsch, R; Lorts, A; Zafar, F. Artificial Organs. 2021; 45:29-37.

Landscape of Mentorship and its Effects on Success in Cardiology. Abudayyeh, I; Tandon, A; Wittekind, SG; Rzeszut, AK; Sivaram, CA; Freeman, AM; Madhur, MS. JACC: Basic to Translational Science. 2020; 5:1181-1186.

Body Composition and Exercise Performance in Youth With a Fontan Circulation: A Bio-Impedance Based Study. Powell, AW; Wittekind, SG; Alsaied, T; Lubert, AM; Chin, C; Veldtman, GR; Cordina, R; Katz, DA; Mays, WA; Knecht, SK; et al. Journal of the American Heart Association. 2020; 9.