van Cleve R B, Sung R J, Maytin O, Castellanos A
Eur J Cardiol. 1978 Nov;8(4-5):543-51.
Magnet waving was performed in a patient with a normally functioning, program-mable, QRS-inhibited (VVI) pacemaker (Omni-Stanicor, Cordis Corporation), which was implanted for sick sinus syndrome. This procedure resulted in reversion to an asynchronous, nonsensing (irregular VOO) mode of operation with uneven stimulus-to-stimulus intervals. A short run of ventricular tachycardia occurred when a stimulus fell on the T wave of the preceding ectopic ventricular beat. This tachycardia was short-lived and was probably terminated by a single pacemaker stimulus. It is also suggested that magnet waving and external chest wall stimulation in patients with Omni-Ectocor and Starr--Edwards pacemakers require further study and that electrocardiograms recorded from patients in whom they have been implanted have to be analyzed taking into consideration that these pacemakers have features common to both, QRS-triggered (VVT), and QRS-inhibited (VVI) pacemakers.
对一名植入了用于治疗病态窦房结综合征的、功能正常的、可编程的、QRS抑制型（VVI）起搏器（Omni-Stanicor，Cordis公司）的患者进行了磁铁试验。该操作导致起搏器转变为异步、无感知（不规则VOO）的工作模式，刺激间隔不均。当一个刺激落在前一个异位室性搏动的T波上时，发生了一阵短暂的室性心动过速。这种心动过速持续时间很短，可能由单个起搏器刺激终止。还表明，对于植入Omni-Ectocor和Starr-Edwards起搏器的患者，磁铁试验和胸壁外部刺激需要进一步研究，并且对于植入这些起搏器的患者所记录的心电图进行分析时，必须考虑到这些起搏器具有QRS触发型（VVT）和QRS抑制型（VVI）起搏器的共同特征。
