Quest: Repairing more hearts with implanted pumps

Heart patient Taneal Wilson is seen in Washington, Monday, July 21, 2008. When it comes to hearts, Wilson won the lottery. A small pump implanted to keep the 31-year-old alive long enough for a transplant somehow helped Wilson's ravaged heart completely recover instead. Only a lucky few ever are weaned off those heart pumps. How to duplicate those successes is one of cardiology's biggest questions _ as a new generation of the heart pumps begins U.S. testing. (AP Photo/J. Scott Applewhite)