> But what about the long-term impact of living pulse-free? That question is a matter of lively debate in the cardiac device community. Akif Undar, a clinician

> But what about the long-term impact of living pulse-free? That question is a matter of lively debate in the cardiac device community. Akif Undar, a clinician and cardiac researcher at Penn State University, says pulse is important to get blood to all the small capillaries feeding the organs. "I think you would see organ damage in animals given a [non-pulsing] heart," he says.