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双胫起搏时心房异常感知触发心室起搏可产生起搏器介入性心动过速（ＰＭＴ），是双腔起搏的重要合并症。我院自９０年安装双腔起搏器１４台，共发生２例ＰＭＴ。ＰＭＴ的表现形式主要有环形运动心动过速、房性快速心律失常所致的心动过速、心房电极感知肌电所致心动过速。ＰＭＴ的发生机制主要是起搏器心室后心房反拗期（ＰＶＡＲＰ）安排不当及心房感知灵敏度过高所致。通过调整起搏参数一般均能有效地终止并预防ＰＭＴ。
Atrioventricular tachycardia during tibial atrial pacing triggered ventricular pacing can produce pacemaker interventional tachycardia (PMT), is an important complication of dual-chamber pacing. In our hospital since 1990, 14 double-chamber pacemakers were installed, with a total of 2 cases of PMT. The main manifestations of PMT ring movement tachycardia, atrial tachyarrhythmia caused by tachycardia, atrial electrode perception of myoelectric tachycardia. The mechanism of PMT is mainly due to improper arrangement of pacemaker atrial posterior chamber atrophy (PVARP) and atrial sensitization sensitivity is too high. PMT can be effectively terminated and prevented by adjusting pacing parameters.