I am the executive co-director of The Heart Institute and director of cardiothoracic surgery at Cincinnati Children’s Hospital Medical Center. I also serve as professor of pediatrics and surgery at the University of Cincinnati College of Medicine and hold the Bailey-Tweddell Chair of Congenital Heart Surgery.
I completed my undergraduate education at Duke University, where I majored in psychiatry, philosophy, and biology, before earning my medical degree from Yale University. I completed my general surgery and cardiothoracic surgery training at New York-Presbyterian Hospital (Columbia University), followed by a congenital heart surgery fellowship as the Emmett Augustus Jones Fellow at Texas Children’s Hospital.
After joining the faculty at Texas Children’s Hospital, I spent nine years helping establish the field of ventricular assist device (VAD) therapy for pediatric and congenital heart disease, achieving several firsts in the discipline. During this period, I founded clinical outcomes and translational research programs, including an animal surgery research laboratory at Rice University, where I served as an adjunct professor in biomedical engineering. In recognition of these efforts, I received the inaugural Mark A. Wallace Catalyst Leadership Award in 2012.
In 2012, I was recruited to Cincinnati Children’s Hospital Medical Center as Chief of Congenital Heart Surgery and Executive Co-Director of The Heart Institute. Under my leadership, the Cardiothoracic Surgery Research Laboratory has grown into a nationally recognized translational research program, securing multiple competitive grants, including three NIH R01 awards focused on artificial intelligence-driven transplant allocation and perioperative decision-making, mitigation of ischemia-reperfusion injury, and anticoagulation and inflammation in mechanical circulatory support. My research also encompasses tissue engineering and the development of advanced virtual surgical planning and metaverse technologies. Equally important to me is mentoring the next generation of clinician-scientists. To date, our lab have mentored more than 50 medical students, residents, fellows, postdoctoral trainees, and junior faculty.
Clinically, I specialize in complex neonatal and congenital heart surgery, biventricular repair in heterotaxy syndrome, mechanical circulatory support, heart transplantation, and the management of the failing Fontan circulation.
I have authored more than 425 peer-reviewed publications (H-index 65), contributed over 35 book chapters and reviews, presented more than 430 scientific abstracts, and delivered more than 300 invited lectures nationally and internationally. I serve on the editorial boards of leading journals, including The Annals of Thoracic Surgery, The Journal of Thoracic and Cardiovascular Surgery, and The Journal of Heart and Lung Transplantation, and I am a member of the Executive Board of the Congenital Heart Surgeons' Society.
My current initiatives focus on advancing congenital heart surgery through artificial intelligence, technological innovation, and international collaboration. I co-lead the development of an international virtual surgical planning metaverse and direct the ACCESS Network, a multi-institutional collaboration dedicated to improving access, quality, and outcomes for children with congenital heart disease through coordinated clinical care, research, education, and innovation. Current partner programs include Peyton Manning Children’s Hospital, Akron Children’s Hospital, Golisano Children’s Hospital at the University of Kentucky, Mary Bridge Children’s Hospital (Tacoma, Washington), and Sheikh Khalifa Medical City Children’s Hospital (Abu Dhabi, United Arab Emirates).
MD: Yale University School of Medicine, New Haven, CT
Residency: General and cardiothoracic surgery, New York-Presbyterian Medical Center, Columbia University, New York, NY
Fellowship: Congenital heart surgery, Texas Children’s Hospital, Baylor University, Waco, TX
Congenital heart surgery; heterotaxy syndrome; pediatric heart and lung transplantation; mechanical circulatory support; complex biventricular repairs; complex neonatal repairs
Clinical and translational research related to mechanical circulatory support and tissue engineering; virtual surgical planning for complex congenital heart disease; use of AI/machine learning for outcomes research
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Timing the Arterial Switch Operation: A Switch in Time Saves 9. Annals of Thoracic Surgery. 2026.
Inadequate tissue for cone repair: An alternative method. Journal of Thoracic and Cardiovascular Surgery. 2025; 169(6):e56-e59.
Expanding the Donor Pool: Sequential Double Lung then Heart Transplant Using Ex-Vivo Normothermic Perfusion. The Journal of Heart and Lung Transplantation. 2024; 43(12):2046-2047.
Predicting Stroke for Pediatric Patients Supported With Ventricular Assist Devices: A Pedimacs Report. Annals of Thoracic Surgery. 2024; 118(4):889-897.
Outcomes of Concomitant Cardiac Surgical Procedures Performed During Pediatric Lung Transplantation in the United States. Lung. 2024; 202(4):459-464.
In the era of outpatient ventricular assist devices, is it time to reconsider the practice of bridging older children to transplant on outpatient inotropes? Journal of Thoracic and Cardiovascular Surgery. 2024; 167(6):2206-2214.
Good Things Come to Those Who Wait: Single-Institution Post-Heart Transplant Outcomes After Ventricular Assist Device Placement. Annals of Thoracic Surgery. 2024; 117(5):1043-1044.
Donation after circulatory death significantly reduces waitlist times while not changing post-heart transplant outcomes: A United Network for Organ Sharing Analysis. The Journal of Heart and Lung Transplantation. 2024; 43(3):461-470.
Reality of DCD donor use in pediatric thoracic transplantation in the United States. The Journal of Heart and Lung Transplantation. 2024; 43(1):32-35.
It Takes Two: Outcomes of Pediatric Heart Transplant Candidates With Renal Dysfunction. Annals of Thoracic Surgery. 2024; 117(1):142-143.
David L.S. Morales, MD5/6/2026
David L.S. Morales, MD, Don Hayes, MD, MS, MEd, MBA3/24/2025
David L.S. Morales, MD9/26/2024
David L.S. Morales, MD, Ryan A. Moore, MD, MSc6/6/2024
David L.S. Morales, MD, Ryan A. Moore, MD, MSc11/15/2023
David L.S. Morales, MD, Carl L. Backer, MD ...10/2/2023
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