Hauser R G, Susmano A
Pacing Clin Electrophysiol. 1981 Jul;4(4):391-5. doi: 10.1111/j.1540-8159.1981.tb03717.x.
Oversensing and recycling due to a pacemaker stimulus after-potentials are recognized complications of non-competitive pacing. Often masquerading as T-wave sensing, after-potential oversensing may result in slowing or acceleration of pacing rate. We report two cases of after-potential oversensing in patients with R-wave inhibited (VVI) programmable pulse generators. In both cases, recycling of the pulse generators by the sensed after-potentials resulted in slowing of the pacing rates. This phenomenon was abolished non-invasively by decreasing the duration or width of the stimulus pulse which diminished the magnitude of the after-potential signal.
起搏器刺激后电位导致的感知过度和再循环是公认的非竞争性起搏并发症。后电位感知过度常伪装成T波感知，可能导致起搏频率减慢或加速。我们报告两例R波抑制型（VVI）可编程脉冲发生器患者出现后电位感知过度的病例。在这两例病例中，被感知的后电位使脉冲发生器再循环，导致起搏频率减慢。通过缩短刺激脉冲的持续时间或宽度以减小后电位信号的幅度，这种现象可通过非侵入性方式消除。
