TAVR (IMAGE) UT Southwestern Medical Center Caption How well hospitals adhere to treatment guidelines for heart failure is more important than comparing patient volumes at hospitals, UT Southwestern cardiologists found. Above is a Transcatheter Aortic Valve Replacement (TAVR), a leading-edge, minimally invasive procedure for patients with symptomatic severe aortic stenosis, which is a narrowing of the heart's aortic valve resulting in the obstruction of blood flow to the body. UT Southwestern is among an elite group of hospitals across the nation with the capabilities to perform this procedure. Credit UT Southwestern Medical Center Usage Restrictions None License Licensed content Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.