Conclusion: Cardiac permanent pacing 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。
Conclusion: Cardiac permanent pacing 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。
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