Can Recycled Pacemakers From The US Save Lives Overseas? 

From inside an operating room in Barquisimeto, Venezuela, electrophysiologist Maria Milagros Arends, M.D., threads wires from a pacemaker through the veins and into the heart muscle of a patient. 

This pacemaker, which regulates the heartbeat and can be lifesaving, was once in the body of another person. It has been...