Pacemaker can be life-saving in high grade atrioventricular (AV) blocks. But this reality is occasionally challenged by arrhythmias induced by ventricular pacing. Some of the events are related to automated pacemaker algorithms. Managed ventricular pacing (MVP) is one such example which has delivered benefits but has also been associated with ventricular tachyarrhythmias (VT). Our case is possibly the first report of hysteresis induced symptomatic VT.

中文翻译：

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单腔起搏器编程后的室性快速性心律失常 - 机制是什么？

起搏器可以在高级房室 (AV) 阻滞中挽救生命。但这一现实偶尔会受到心室起搏引起的心律失常的挑战。一些事件与自动起搏器算法有关。管理的心室起搏 (MVP) 就是这样一个例子，它带来了好处，但也与室性快速性心律失常 (VT) 相关。我们的案例可能是关于迟滞引起的症状性 VT 的第一个报告。