Abstract
Since April 1981 to August 1983, 172 vale replacement surgery were undertaken in our University Hospital. In the intra-or early postoperative period (within 72 hours after completion of extracorpuscular circulation), Intraaortic Balloon Pumping was installed in 13 patients ( =7:6; agell-64 years, mean 47years). Eight patients were indicated IABP for unable to wean from extra-corpuscular circulation; two for arrhythmia, six for low output syndrome. Two patients out of eight were discharged alive. Five patients required IABP for low cardiac output postoperativly and four patients survived. Ten patients were able to wean from IABP and seven survived. Three patients died of renal failure and/or respiratory failure. It appeared that not only hemodynamic variables but also general conditions should be considered at the time of weaning from IABP.