PITTSBURGH, Dec. 15 /PRNewswire/ -- CardiacAssist, Inc. announced that it has placed the TandemHeart® PTVA® System at two new medical centers. More than 75 hospitals across the U.S. and more than 90 worldwide now use the TandemHeart System for extracorporeal circulatory support. The TandemHeart System is used in 17 of the top 20 heart and heart surgery hospitals in the U.S. and 11 of the nation's top 14 hospitals overall.
