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植入式心脏起搏器有能量补偿电路,当供电电压在一定范围内时。其脉冲频率保持不变。但当供电电压降到一定程度时,脉冲频率减慢。频率下降超过2次/min 时,提示电池耗竭,应尽快(1～2月内)更换起搏器。如病人起搏依赖强而脉冲频率大幅度下降时,应紧急更换起搏器。VVI(心室起搏、心室感知、抑制)型超搏器有按需功能,自搏频率超过起搏器脉冲频率时,起
Implanted pacemakers have energy-compensating circuitry when the supply voltage is within a certain range. The pulse frequency remains unchanged. However, when the supply voltage drops to a certain extent, the pulse frequency is slowed down. If the frequency drops more than 2 times / min, the battery is exhausted, and the pacemaker should be replaced as soon as possible (within 1 ~ 2 months). If patients rely on strong pacing and pulse frequency dropped significantly, the pacemaker should be replaced urgently. VVI (ventricular pacing, ventricular perception, inhibition) -type pacemaker with on-demand function, self-paced frequency exceeds the pacemaker pulse frequency, from