体外循环下深低温停跳(pHCA)修复婴儿复杂的先天性心脏病后,出现中枢神经系缺血性损害约占7％～25％。作者使用经颅多普勒超声(TCD)仪进行婴儿在PHCA下施行心脏手术后大脑中动脉脑血流流速(CBFV)的研究。作者选择10例19个月以下的先心病婴儿等分成两组:中低温CPB的对照组和深低温CPB下停跳的实验组,每组5例。两组麻醉方法相同,静注芬太尼50～100μg·kg~(-1)和潘库溴胺0.15mg·kg~(-1),插气管导管, Cardiopulmonary ischemic damage accounts for about 7% -25% after deep hypothermic cardiopulmonary bypass (pHCA) to repair complex congenital heart disease in infants. The authors used a transcranial Doppler (TCD) instrument to study the cerebral blood flow velocity (CBFV) of the middle cerebral artery after infantile cardiac surgery in PHCA. The authors selected 10 cases of congenital heart disease infants younger than 19 months and so divided into two groups: control group of hypothermia CPB and hypothermia hypothermia in the experimental group of CPB, 5 cases in each group. The anesthesia method was the same in both groups, with intravenous injection of fentanyl 50 ~ 100μg · kg ~ (-1) and pancuronium bromide 0.15mg · kg ~ (-1)