den Dulk K, Brugada P, Braat S, Heddle B, Wellens H J
J Am Coll Cardiol. 1983 Mar;1(3):965-9. doi: 10.1016/s0735-1097(83)80218-6.
Paroxysmal atrioventricular (AV) block was induced by exercise in an otherwise healthy young man. The only abnormalities demonstrated at comprehensive cardiac evaluation were: 1) angiographic systolic narrowing of the left anterior descending coronary artery, and 2) reversible radionuclide hypoperfusion of the septum during exercise. It is postulated that ischemia of the conduction system due to systolic milking of the left anterior descending coronary artery was responsible for the paroxysmal AV block in this patient.
一名原本健康的年轻男性在运动时诱发了阵发性房室传导阻滞。全面心脏评估显示的唯一异常为：1）左前降支冠状动脉造影显示收缩期狭窄；2）运动期间室间隔放射性核素可逆性灌注减低。据推测，该患者阵发性房室传导阻滞的病因是左前降支冠状动脉收缩期“挤奶效应”导致的传导系统缺血。
