Lee Sinjin, Wellens Hein J J, Josephson Mark E
Department of Cardiology, Beth Israel Deaconess Medical Center, Boston, Massachusetts 02215, USA.
Heart Rhythm. 2009 Aug;6(8):1229-34. doi: 10.1016/j.hrthm.2009.04.001. Epub 2009 Apr 5.
Paroxysmal atrioventricular block (AVB) is a poorly defined clinical entity characterized by abrupt and unexpected change from 1:1 atrioventricular conduction to complete heart block, leading to syncope and potential sudden cardiac death. Although a dangerous condition because of unreliable escape mechanism, proper diagnosis of paroxysmal AVB is often missed and overlooked because of its unfamiliarity, unpredictability, and in some cases, no clear evidence of atrioventricular conduction disease during normal 1:1 conduction.
阵发性房室传导阻滞（AVB）是一种定义不明确的临床病症，其特征是房室传导从1:1突然且意外地转变为完全性心脏传导阻滞，导致晕厥和潜在的心源性猝死。尽管由于逸搏机制不可靠，阵发性房室传导阻滞是一种危险病症，但由于其不常见、不可预测，且在某些情况下，在正常1:1传导期间没有明确的房室传导疾病证据，阵发性房室传导阻滞的正确诊断常常被漏诊和忽视。
