Steve Poelzing (image) Virginia Tech Share Print E-Mail Caption Steve Poelzing, associate professor at the Virginia Tech Carilion Research Institute, and Soufian AlMahameed (not pictured), who was the director of the Carilion Clinic's Center for Atrial Fibrillation, led the research team that first identified the perinexus in the human heart. This tiny pocket has big implications for people with irregular heart beats. Credit Virginia Tech Carilion Research Institute Usage Restrictions Please credit the Virginia Tech Carilion Research Institute Share Print E-Mail 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.