Zilo P, Gross J N, Andrews C A, Furman S
Department of Cardiothoracic Surgery, Montefiore Medical Center, Bronx, New York 10467.
Pacing Clin Electrophysiol. 1991 Oct;14(10):1538-43. doi: 10.1111/j.1540-8159.1991.tb04075.x.
Retrograde ventriculoatrial (VA) conduction is documented at the time of dual chamber pacemaker implantation in a 36-year-old patient with congenital complete atrioventricular (AV) block. Programmed ventricular stimulation with stimuli of increasing prematurity demonstrated a lack of decremental conduction via a unidirectional retrograde pathway. Because retrograde VA conduction has been associated with pacemaker mediated endless loop tachycardia, the status of retrograde conduction should be assessed in all patients undergoing dual chamber pacemaker implantation, including those with congenital complete AV block who have previously been considered to have no conductive tissue between atria and ventricles.
在一名36岁先天性完全性房室传导阻滞患者植入双腔起搏器时记录到逆行性室房（VA）传导。采用逐渐提前的刺激进行程控心室刺激显示，经单向逆行路径不存在递减传导。由于逆行性VA传导与起搏器介导的无休止环行性心动过速相关，对于所有接受双腔起搏器植入的患者，包括那些既往被认为心房与心室之间不存在传导组织的先天性完全性房室传导阻滞患者，均应评估逆行传导情况。
