Bolorunduro Oluwaseyi, Khouzam Rami N, Dishmon Dwight
Department of Internal Medicine, Division of Cardiovascular Diseases, University of Tennessee Health Science Center Memphis, Tn, United States.
Turk Kardiyol Dern Ars. 2014 Oct;42(7):667-70. doi: 10.5543/tkda.2014.91074.
A patient presented with typical angina and a non-ST elevation myocardial infarction. Electrocardiogram showed complete heart block, and she was found to have a 90% acute marginal artery stenosis. The block resolved after balloon angioplasty of this artery that does not supply the atrioventricular node. We propose that increased vagal tone due to inferior wall ischemia from acute marginal artery stenosis has elicited the Bezold-Jarisch reflex. This is a likely mechanism for this uncommon etiology of complete heart block.
一名患者出现典型心绞痛和非ST段抬高型心肌梗死。心电图显示完全性心脏传导阻滞，发现其急性边缘动脉狭窄90%。在对这条不供应房室结的动脉进行球囊血管成形术后，传导阻滞得以缓解。我们认为，急性边缘动脉狭窄导致下壁缺血，进而引起迷走神经张力增加，引发了贝佐尔德-雅里什反射。这可能是这种罕见的完全性心脏传导阻滞病因的机制。
