Our Pediatric Heart Surgeons

S. Adil Husain, MD

Professor, Department of Cardiothoracic Surgery

Chief, Pediatric Cardiothoracic Surgery

William Randolph Hearst Chair in Congenital Heart Disease

Associate Program Director, Cardiothoracic Fellowship Training Program

UT Health San Antonio

Surgeon-In-Chief, Pediatric Services, University Health System

Dr. Husain obtained his medical degree from the University of North Dakota, where he was a Ray Dugan Memorial Academic Scholar. He completed his residency in general surgery at the University of Iowa Hospitals and Clinics, where he was given the Edward Mason Resident award and also became the chief administrative resident. He then completed fellowship training in cardiothoracic surgery at the University of North Carolina. He completed his pediatric heart surgical training at Riley Children’s Hospital - Indiana University School of Medicine in congenital cardiac surgery. Dr. Husain joined UT Health San Antonio in 2008 and has been chief of pediatric cardiothoracic surgery since 2009. He also serves as the associate program director for the Cardiothoracic Fellowship Training Program within the Department of Cardiothoracic Surgery at UT Health San Antonio. He currently serves as the surgeon in chief for pediatric services at University Health System. He is board certified in adult cardiothoracic surgery as well as congenital cardiothoracic surgery.

His research interests have produced published manuscripts involving the study of total anomalous pulmonary venous return, sternal wound infections as well as pulmonary homograft usage for right ventricular outflow tract reconstruction. Dr. Husain has been a committee member for the review of grant applications involving cardiovascular devices submitted to the National Institutes of Health since 2010. Dr. Husain is also very involved in international humanitarian surgical mission work as well as local charitable endeavors. In particular, he is very involved with HeartGift, an organization designed to bring children from underserved nations to San Antonio for corrective heart surgery.

John H. Calhoon, MD

Professor and chair

President’s Council Chair for Excellence in Surgery

Department of Cardiothoracic Surgey

Director, University Health System/UT Health San Antonio Heart and Vascular Institute

Integral member of UT Health San Antonio for more than 25 years, Dr. Calhoon attended the University of Texas at Austin and graduated from Baylor College of Medicine in 1981. He was selected as chief resident at the Harvard Medical School Boston Children’s Hospital in pediatric cardiac surgery. Dr. Calhoon then joined the faculty at UT Health San Antonio in 1994. In 2010, Dr. Calhoon was named Founding Chairman of the Department of Cardiothoracic Surgery. Areas of clinical expertise include congenital heart surgery, adult cardiac surgery, and pulmonary transplantation.

Honors include a variety of teaching awards from the institution and department including being awarded the first ever President’s Council Chair for Excellence in Surgery in 2003. He is author of more than 100 peer reviewed journal articles and 20 book chapters. Dr. Calhoon is council chair and immediate past president of the Southern Thoracic Surgical Association and president of the Thoracic Surgery Foundation. He is a past board member and past officer of the Joint Council in Thoracic Surgical Education. He is a past president of the American Board of Thoracic Surgery and a former board member of the Society of Thoracic Surgeons. He is a member of the American Association of Thoracic Surgery and Texas Surgical Society. Active in a number of civic areas, Dr. Calhoon has served as chairman of the local American Heart Association Board.