Abstract
The effects of three different driving modes of LVAD for peripheral circulation were studied. Peripheral circulation, especially renal and hepatic blood flow distribution was evaluated in each driving mode (diastolic driving, systolic driving mode, fixed rate driving mode) during left ventricular assist. Proper hepatic and renal arterial flow and regional blood flow were measured 2 hours after LVAD was started. The results showed that significant change of hepatic blood flow distribution was not seen in each driving mode. But the imbalance of intrarenal blood flow distribution was recognized under the fixed rate driving mode.