A photo of Samuel Wittekind.

Pediatric Cardiologist, Heart Failure & Transplantation and Cardiopulmonary Exercise Lab

Assistant Professor, UC Department of Pediatrics


Board Certified

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


Cardiomyopathy, Neuromuscular Cardiology, Neuromuscular Disorders, Cardio Oncology Program, Cardiology

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

Hypertrophic Cardiomyopathy with Left Ventricular Systolic Dysfunction: Insights from the SHaRe Registry. Marstrand, P; Han, L; Day, SM; Olivotto, I; Ashley, EA; Michels, M; Pereira, AC; Wittekind, SG; Helms, A; Saberi, S; et al. Circulation. 2020; 141:1371-1383.

Variation in Cardiac Rehabilitation for Pediatric Ventricular Assist Device Recipients across North America: An ACTION Network Survey. Burstein, D; McBride, M; Lorts, A; Rosenthal, D; Peng, D; Lantz, J; Tunuguntla, H; Zinn, M; Curran, T; Wittekind, S. Journal of Heart and Lung Transplantation. 2020; 39:S466-S466.

Cost-utility of continuous-flow ventricular assist devices as bridge to transplant in pediatrics. Evers, PD; Villa, C; Wittekind, SG; Hobing, R; Morales, DL S; Lorts, A. Pediatric Transplantation. 2019; 23.

Profound Iron Deficiency Anemia and Irreversible Dilated Cardiomyopathy in a Child. Wittekind, SG; Martinez, HR; Villa, C; Bacon, M; Hammill, AM; Lorts, A. Case Reports in Cardiology. 2019; 2019:7513782-4.

Contemporary Outcomes of Pediatric Restrictive Cardiomyopathy: A Single-Center Experience. Wittekind, SG; Ryan, TD; Gao, Z; Zafar, F; Czosek, RJ; Chin, CW; Jefferies, JL. Pediatric Cardiology. 2019; 40:694-704.

Cardiopulmonary Rehabilitation Therapy in Congenital Heart Disease: What Will it Take to Gain Traction?. Wittekind, SG; Redington, A. Seminars in Thoracic and Cardiovascular Surgery. 2018; 30:470-471.

Can we heal with steel and sharpen our risk prediction tools in obstructive hypertrophic cardiomyopathy?. Jefferies, JL; Wittekind, SG. Journal of Thoracic and Cardiovascular Surgery. 2018; 156:760-761.

A Novel Mechanism for Improved Exercise Performance in Pediatric Fontan Patients After Cardiac Rehabilitation. Wittekind, S; Mays, W; Gerdes, Y; Knecht, S; Hambrook, J; Border, W; Jefferies, JL. Pediatric Cardiology. 2018; 39:1023-1030.

Association of Habitual Physical Activity With Cardiovascular Risk Factors and Target Organ Damage in Adolescents and Young Adults. Wittekind, SG; Edwards, NM; Khoury, PR; McCoy, CE; Dolan, LM; Kimball, TR; Urbina, EM. Journal of Physical Activity and Health. 2018; 15:176-182.

Identifiable Risk Factors and Miscalculations During Listing for Pediatric Heart Transplantation. Martinez, HR; Wittekind, S; Bryant, R; Tweddell, JS; Chin, C. Seminars in Thoracic and Cardiovascular Surgery: Pediatric Cardiac Surgery Annual. 2018; 21:2-8.