2:1和4期梗死期阻滞。

European journal of cardiology Pub Date : 1979-09-01
P Alboni, C Malacarne, A Pradella, A Masoni
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引用次数: 0

摘要

1例急性下室间隔心肌梗死患者最初表现为2:1房室传导阻滞,交替传导心室复合物表现异常,后来出现wenckebach型2度房室传导阻滞,伴有舒张期长暂停后的心跳异常。腔内记录提示异常与脑室内传导阻滞有关。心电图和VCG记录排除阻滞部位在主束或左束束。因此,患者表现出2:1和后来的4期外周阻滞的证据,由于潜在的病因阻滞,也被定义为梗死期阻滞。通过心电矢量图中明显的中端电力向右和后向,阻滞可定位于右心室后壁。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
2:1 and phase 4 peri-infarction block.

A patient with acute inferior and anteroseptal myocardial infarction initially developed a 2 : 1 AV block with alternate conducted ventricular complexes showing aberrancy, and later Wenckebach-type, 2nd-degree AV block with aberrancy of the beats following a long diastolic pause. Intracavitary recording suggested that aberrancy was related to an intraventricular block. ECG and VCG recordings excluded the site of block as being in the main bundles or in the fascicles of the left bundle. The patient therefore showed evidence for a 2 : 1 and later a phase 4 peripheral block, defined also as a peri-infarction block because of the underlying etiology of the block. The block could be localized in the posterior wall of the right ventricle, by the marked rightward and posterior orientation of the middle and terminal electrical forces evident in the vectorcardiogram.

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