Objective To evaluate the clinical applicationof a self-designed LVAD circuit in children with congenital heart disease ( CHD) . Methods 14 patients of CHD underwent LVAD placement during the left heart failure postoperatively. All children were supported with ordinary manufacturers and centrifugal pumps, which were connected with the self-designed LVAD circuit. The flow rates were kept at 80-150 ml( kg·min) , and the activated coagulation time was maintained between 150 s and 180 s. Results The rate of weaning off LVAD was 64.3% (9/14), and the survival rate of hospital discharge was 57.2% (8/14). Except for the com-plications that were directly related to surgery and cardiac function, no circuit-related complication was shown. Conclusions The LVAD circuit designed by ourselves is safe and easy to use in children. It plays an important role in left ventricular assist.%目的 阐述小儿左心室辅助装置(LVAD)管路的设计和临床使用.方法 对14例先天性心脏病(CHD)患儿因心内直视手术后左心功能不全实施左心室辅助.采用普通离心泵和泵头,与本院自行设计的管道连接使用.流量为80~150 ml/(kg·min),肝素抗凝,维持激活凝血时间在150~180 s.结果 脱机生存率为64.3%(9/14),出院生存率为57.2%(8/14).除外科纠治和疾病本身原因外,未出现与管路设计和使用相关的并发症.结论 本院自行设计的管路使用合理、安装简便,在左心辅助中起到了一定的作用.
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