Eugene Braunwald, Father of Modern Cardiology, Dies at 96
Eugene Braunwald, MD, MACC, widely regarded as the father of modern cardiology, passed away on April 22, 2026, at the age of 96. His death marks the complete of an era in cardiovascular medicine, where his groundbreaking research transformed heart disease from a near-certain fatality into a manageable condition for millions worldwide.
Braunwald was born in Vienna, Austria, in 1929. As a child, he fled Nazi persecution with his family and immigrated to the United States as a refugee—an experience he often cited as foundational to his discipline, work ethic, and lifelong commitment to advancing medical science. He earned his undergraduate and medical degrees from New York University and completed his internal medicine residency at Johns Hopkins Hospital.
Throughout his distinguished career, Braunwald held leadership roles at some of the nation’s most prestigious medical institutions. He served as Chief of Cardiology and Clinical Director of the National Heart, Lung, and Blood Institute. He was the founding Chair of Medicine at the University of California, San Diego. Chair of the Department of Medicine at Brigham and Women’s Hospital in Boston; and the Distinguished Hersey Professor of Medicine at Harvard Medical School.
His scientific contributions reshaped the understanding and treatment of cardiovascular disease. In 1964, Braunwald and his longtime collaborator Andrew Morrow, MD, published a seminal 213-page monograph in Circulation that first identified hypertrophic cardiomyopathy (HCM) as a distinct clinical entity. This work laid the foundation for decades of research into inherited heart conditions.
Braunwald’s influence extended beyond the laboratory. In 1984, he founded the Thrombolysis in Myocardial Infarction (TIMI) Study Group, which revolutionized the design and execution of large-scale cardiovascular clinical trials. The TIMI trials set new standards for evaluating therapies for heart attacks and helped establish evidence-based approaches that are now routine in clinical practice.
As a medical educator, Braunwald left an indelible mark. He was the founding editor of Braunwald’s Heart Disease, the definitive textbook in cardiology, and served as a longtime editor of Harrison’s Principles of Internal Medicine, shaping the training of generations of physicians. His editorial leadership ensured that cutting-edge scientific advances were rapidly integrated into medical education and patient care.
Braunwald was a lifelong contributor to the major cardiovascular societies. He held leadership positions with the American College of Cardiology (ACC), the American Heart Association (AHA), and the European Society of Cardiology (ESC). In recognition of his dedication to mentorship, the AHA established the Eugene Braunwald Academic Mentorship Award in 1999, honoring excellence in teaching and the development of future leaders in cardiovascular science.
Over his career, Braunwald authored or co-authored more than 1,000 scientific publications. His work earned the highest honors from cardiology organizations worldwide, including prestigious awards from the ACC, AHA, and ESC. Tributes from colleagues and institutions highlighted not only his intellectual brilliance but also his humility, compassion, and unwavering commitment to improving patient outcomes.
Valentin Fuster, MD, PhD, President of Mount Sinai Fuster Heart Hospital and Physician-in-Chief of The Mount Sinai Hospital, described Braunwald as “a very good friend for many decades and one of the most talented people I have ever met,” noting his ability to anticipate advances in medicine with remarkable accuracy.
Eugene Braunwald’s legacy endures in the countless lives saved through therapies and protocols rooted in his research. His vision transformed cardiology from a field of limited intervention into one driven by innovation, rigorous science, and compassionate care. As the medical community mourns his passing, his influence continues to guide the future of cardiovascular health.