Diederich K W, Jettel U, Djonlagic H
Z Kardiol. 1978 Oct;67(10):702-6.
In 18 out of 419 successive myocardial infarctions an increase in R-wave amplitude compared to the pre-infarction ecg had been observed. It concerned to leads III, aVF and II in posterior and inferior infarctions. The alteration of R-wave amplitude was accompanied by a dextroversion of electrical heart axis in the frontal plane. Direction of inscription of QRS loop changed in most cases. R-wave increase was demonstrated in the first ecg after the beginning of subjective symptoms and disappeared within few hours or days in general. Clinical course was rather serious in the cases described. As a pathophysiological mechanism of the phenomenon mentioned above either the influence of an injury potential upon ecg pattern or the presence of left posterior conduction defect is discussed.
在419例连续发生的心肌梗死中，有18例观察到与梗死前心电图相比R波振幅增加。这与下后壁梗死时Ⅲ、aVF及Ⅱ导联有关。R波振幅的改变伴有额面心电轴右偏。多数病例QRS环的记录方向发生改变。R波增高在出现主观症状后的第一份心电图中即可显示，一般在数小时或数天内消失。所述病例的临床过程相当严重。对于上述现象的病理生理机制，讨论了损伤电位对心电图图形的影响或左后分支传导阻滞的存在。
