ObjectiveTo select individually the permanentpacing position for preventing abnormal cardiac function.
目的个性化选择心室永久起搏部位，预防心功能异常。
2
Conclusion: Cardiac permanentpacing can improve heart function of patients with chronic arrhythmia, DDD and AAI modes were better than VVI mode.
结论：心脏永久起搏能有效改善缓慢心律失常患者的心功能，DDD及AAI模式优于VVI模式。
3
The article reported the clinical application of permanent cardiac pacemakers in 21 cases and also discussed the indications, pacing ways, inserting ways and complications of pacemakers.