心搏骤停由临时心外膜起搏器感知不良引起。
Cardiac arrest caused by undersensing of a temporary epicardial pacemaker.
机构信息
Toronto General Hospital, University Health Network, Canada.
出版信息
Can J Cardiol. 2010 Jan;26(1):e13-4. doi: 10.1016/s0828-282x(10)70334-2.
Abstract
The R-on-T phenomenon is a well-known entity that predisposes to dangerous arrhythmias. Typically, a premature ventricular complex occurring at the critical time during the T wave of the preceding beat precipitates ventricular tachycardia and fibrillation. This phenomenon can occur not only in asynchronous ventricular pacemakers, but also in synchronous pacemakers, if loss of sensing of the intrinsic rhythm becomes evident. A patient who was fitted with a temporary epicardial wire, following cardiac surgery and experienced repeated episodes of polymorphic ventricular tachycardia caused by the R-on-T phenomenon, is described.
摘要
R-on-T 现象是一种已知的易引发危险心律失常的因素。通常情况下，发生在前一个心跳 T 波的关键时期的室性期前收缩会引发室性心动过速和心室颤动。这种现象不仅可能发生在异步心室起搏器中，如果内在节律的感知丧失变得明显，也可能发生在同步起搏器中。本文介绍了一位心脏手术后安置了临时心外膜导丝的患者，他经历了多次由 R-on-T 现象引起的多形性室性心动过速。
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本文引用的文献
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