Further evidence for the site of reentry in so-called sinus node reentrant tachycardia in man.

European journal of cardiology Pub Date : 1980-02-01
G Breithardt, L Seipel
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Abstract

To provide further evidence for the participation of the sinus node in so-called sinus node reentry in man, right atrial stimulation and endocardial mapping were performed in a case with sustained tachycardias which met the commonly accepted criteria for sinus node reentry. In addition to right atrial mapping, the activation of the high left atrium was depicted from the right pulmonary artery. The results clearly showed that in this patient the high right atrium was indeed the site of origin of the atrial echo beats which could be elicited by programmed premature atrial stimulation. The high left atrial electrogram (from the right pulmonary artery) was activated 35 msec after the high right atrium thus excluding the possibility of reentry in Bachmann's bundle. Atrial mapping during echo beats revealed a right atrial activation pattern which was similar to that observed during spontaneous sinus rhythm. Sinus node reentrant beats could also be evoked by programmed premature stimulation of the low lateral right atrium. In conclusion, activation of the high right atrium prior to the high left atrium is an important additional criterion for defining sinus node reentry in man. Thus, the recording of the left atrial signals from the right pulmonary artery helps to exclude reentry in the high left atrium, e.g. Bachmann's bundle.

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进一步的证据,在所谓的窦房结再入性心动过速再入的位置在人。
为了进一步证明窦房结参与了所谓的窦房结再入,我们对一例符合普遍接受的窦房结再入标准的持续性心动过速患者进行了右心房刺激和心内膜测图。除了右心房图外,右肺动脉还描绘了左高心房的激活。结果清楚地表明,在该患者中,右高心房确实是心房回声的起源部位,可以通过程序性过早心房刺激引起心房回声。左心房高位电图(来自右肺动脉)在右心房高位35毫秒后被激活,因此排除了巴赫曼束再入的可能性。回声搏动时的心房标图显示了与自发性窦性心律相似的右心房激活模式。窦房结重入性搏动也可通过程序性过早刺激右心房下外侧引起。总之,右高心房先于左高心房的激活是确定人类窦房结再入的一个重要的附加标准。因此,记录来自右肺动脉的左心房信号有助于排除左心房高位再入,如巴赫曼束。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
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