“…1 Critical evaluation of pre-and perioperative risk factors before the termination of cardiopulmonary bypass (CPB) will usually provide an idea of the impending need for circulatory support. Should difficulty in weaning of CPB be imminent, plans should be made for the institution of pharmacologic and/or mechanical support (e.g., inotropic drugs, vasodilators, intraaortic balloon counterpulsation (IABP), ventricular assist devices).…”