Vivian Dimas, M.D.

Director of the Pediatric Catheterization Laboratory
Medical Director of Adult Congenital Heart Disease
Medical City Children’s Hospital
Dallas, Texas

Vivian Dimas, M.D. is the Director of the Pediatric Catheterization laboratory as well as the Medical Director of Adult Congenital Heart Disease at Medical City Children’s Hospital.

After receiving her medical degree from the University of Oklahoma College of Medicine, Dr. Dimas completed a residency in pediatrics at Children’s Hospital of Oklahoma. She completed her fellowship in pediatric cardiology as well as advanced training in both pediatric interventional cardiology and pediatric heart failure and transplantation at Texas Children’s Hospital in Houston, TX. Prior to joining Medical City Children's Hospital in 2020, Dr. Dimas served as the Director of Cardiac Catheterization as well as the Interventional Fellowship Director at the University of Texas Southwestern Medical Center at the rank of Associate Professor. In addition, she was part of the multidisciplinary team for the Hypertrophic Cardiomyopathy Center as well as the Adult Congenital Heart Disease service while at UTSW.

Dr. Dimas has expertise in the use of minimally invasive procedures to treat patients with congenital heart disease including advanced techniques, such as percutaneous ventricular assist device implantation, and transcatheter valve replacement. She has served as the Principal Investigator for numerous FDA trials, primarily focused on new device technology. Dr. Dimas’ research interests also involved pioneering the use of Impella percutaneous left ventricle assist devices in the pediatric population and the development of a pediatric specific Impella device.

Dr. Dimas is certified by the American Board of Pediatrics in both Pediatrics and Pediatric Cardiology and by the American Board of Internal Medicine in Adult Congenital Heart Disease. Dr. Dimas performs procedures at Medical City Children's Hospital and the Medical City Heart Hospital.