Abstract
We applied various blood pumps for assisted circulation in 19 cases who has undergone cardiac or aortic surgery for last 6 years. Six cases out of 19 had left heart assist. One case out of 19 had right heart assist. Remaining 12 cases had biventricular assist. In this series three could weaned from the all assist blood pumps and two of these three were survived. Pulsatile assist blood pumps and centrifugal blood pumps are both effective in hemodynamics. Compared to the pulsatile pump, centrifugal pump is easy to use as an assist pump from applicavility, availability and economical view points. Its efficacy is comparable with pulsatile assist blood pump especially when applied with IABP though there still exist controversy as for the superiority of pulsatile flow in ventricular assist.