深低温低流量体外循环(LF-CPB)下实施复杂心脏缺损修补术后并发神经损害的可能比用深低温停循环要少。但LF-CPB期间的脑灌注压(CPP)、脑血流(CBF)和脑血流速度(CBFV)仍低于正常流量的CPB。作者用经颅多普勒超声测定正常CPB流量率(Q)的变化对CBFV的影响以及CPP与CBFV的关系。作者选 Deep hypothermic low-flow cardiopulmonary bypass (LF-CPB) complicated cardiac defect repair complicated by nerve damage may be less than the use of deep hypothermic circulatory arrest less. However, cerebral perfusion pressure (CPP), cerebral blood flow (CBF), and cerebral blood flow velocity (CBFV) during LF-CPB were still lower than those of normal-flow CPB. The authors used transcranial Doppler ultrasound measured normal CPB flow rate (Q) changes on CBFV and CPP and CBFV relationship. Author selection