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因非活性心内膜电极产生的虚假信号导致需求起搏器抑制。

Suppression of demand pacemakers due to spurious signals generated by inactive endocardial electrodes.

作者信息

Oreto G, Bramanti O, Arrigo F, Carerj S, Consolo F

出版信息

Eur Heart J. 1983 Oct;4(10):724-7. doi: 10.1093/oxfordjournals.eurheartj.a061385.

DOI:10.1093/oxfordjournals.eurheartj.a061385
PMID:6653582
Abstract

We report a case of oversensing observed in a patient with a VVI pacemaker. This phenomenon was provoked by an inactive lead whose tip was in close apposition with the tip of the stimulating electrode. Potentials of large amplitude arose from the contact between these two catheters, causing pacer suppression. These false signals have been revealed both by intracavitary recordings and by standard ECG. In the latter they assumed a P-like shape. Withdrawal of the temporary lead restored normal pacing.

摘要

我们报告一例在植入VVI起搏器的患者中观察到的感知过度病例。这种现象是由一根不活动的导线引发的，其尖端与刺激电极的尖端紧密相邻。这两根导管之间的接触产生了大幅度电位，导致起搏器抑制。腔内记录和标准心电图均显示了这些错误信号。在标准心电图中，它们呈现出P波样形态。拔出临时导线后起搏恢复正常。

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