摘要：目的 总结173例半岁内婴儿心内直视手术的体外循环(CPB)经验，提高小婴儿心内直视手术的成功率。方法 ⑴选择精良的CPB设备，减少晶体预充量和库血用量。⑵术中传统超滤和停转流后改良超滤联合应用。⑶体外循环方法为深低温停循环(57例)、深低温低流量(53例)、中低温中流量(39例)、浅低温高流量(24例)。结果治愈161例，死亡率6.94%，无严重的CPB并发症。结论 提高小婴儿CPB质量是其手术成功的关键。

    关键词：体外循环；心脏手术；先心病；婴儿

    The CPB on Little Infants Undergoing Open Heart Surgery

    WANG Zhen-xiang,WU Li-li,QIAO Bin,JIANG Yi-yan,JU Ji-feng,CHEN Li-xia

    (Department of Cardiac Surgery, 106 Hospital of Jinan

    Military Region,Shandong Jinan 250022)

    Abstract: OBJECTIVE To summarize the experience of CPB on 173 cases of little infants (less than half a year old) undergoing open heart surgery so as to improve the success rate of the operation. METHODS ⑴ Selected reliable CPB epuipment and decreased priming crystalloid liquid and banked blood . ⑵ Used traditional ultrafiltration during the course of operation and modified ultrafiltration after bypass. ⑶ Adapted different CPB methods:deep hypothermia circulatory arrest(57cases), deep hypothermia low flow(53cases),mild hypothermia mild flow (39cases), mild hypothermia high flow (24 cases).RESULTS161 cases survived and the mortality rate was 6.94%. No severe complication related to the CPB. CONCLUSION Improving the quality of CPB on little infants is the key point to success. ......