它持续监测心跳节律，如果心跳过慢就像起搏器一样发挥作用，如果出现室速或室颤它就会发射不同能量的除颤电流，使心率恢复正常。
The ICD continuously monitors your heart rhythm. If it detects a rhythm that's too slow, it paces the heart as a pacemaker would.
目的探讨24小时动态心电图监测对安装起搏器患者的临床意义，以供参考。
Objective 24-hour Holter monitoring of pacemaker patients for clinical significance, for reference.
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