目的　探讨临时心脏起搏治疗在儿童缓慢性心律失常所致严重血流动力学紊乱中的作用。方法　回顾分析3 例以临时心脏起搏救治的缓慢性心律失常所致严重血流动力学紊乱患儿的临床资料。结果　3例患儿中1例男性12岁， 2 例女性均为5岁；均先以药物治疗，病情仍持续加重，在入院后10小时内安装临时心脏起搏器治疗，血流动力学障碍很快 得到改善。 1例男性患儿在术后10天、 1例女性患儿在术后11天撤除临时心脏起搏器，经短期随访，均预后良好； 1例女性 患儿在术后21天家属放弃治疗，门诊随访1年，患儿存活，但有心功能不全表现。结论　严重缓慢性心律失常所致血流动 力学紊乱时，及时安置临时心脏起搏器装置效果良好。

Objective　To explore the role of temporary cardiac pacing in severe hemodynamic disorders caused by bradyarrhythmia in children. Method　The clinical data of 3 children with severe hemodynamic disorder caused by bradyarrhythmia treated with temporary cardiac pacing were retrospectively analyzed. Results　Three children, one 12-yearold boy and two 5-year-old girls, were treated with drugs first, but the condition continued to deteriorate. Temporary cardiac pacemakers were installed within 10 hours after admission, and the hemodynamic was quickly improved. The temporary pacemakers were removed 10 days in two boys and 11 days in one girl after operation. The prognosis was all good in short-term follow-up. The family members of a girl abandoned treatment 21 days after surgery. The girl survived but was found to have cardiac dysfunction at one-year follow-up. Conclusion　When the hemodynamic disorder is caused by serious bradyarrhythmia, the temporary cardiac pacing device is effective.