涉及房室交界区的心律失常
Arrhythmias Involving the Atrioventricular Junction.
作者信息
Di Biase Luigi, Gianni Carola, Bagliani Giuseppe, Padeletti Luigi
机构信息
Texas Cardiac Arrhythmia Institute, St. David's Medical Center, 3000 N IH-35, Austin, TX, 78705, USA; Department of Biomedical Engineering, University of Texas, 107 W Dean Keeton Street, Austin, TX, 78712, USA; Arrhythmia Services, Montefiore Medical Center, Albert Einstein College of Medicine, 111 E 210th Street, Bronx, NY, 10467, USA; Department of Clinical and Experimental Medicine, University of Foggia, Viale Pinto 1, 71122, Foggia (FG), Italy.
Texas Cardiac Arrhythmia Institute, St. David's Medical Center, 3000 N IH-35, Austin, TX, 78705, USA.
出版信息
Card Electrophysiol Clin. 2017 Sep;9(3):435-452. doi: 10.1016/j.ccep.2017.05.004.
The atrioventricular junction has a central role in electrophysiology, responsible for reentrant and automatic forms of supraventricular tachycardia. During atrioventricular nodal reentry tachycardia, the circuit involves 2 electrophysiologically separate pathways located in the vicinity of the atrioventricular node. Atrioventricular reentry tachycardia is caused by the presence of an accessory pathway located almost anywhere along the atrioventricular groove; the macroreentrant circuit involves the atrioventricular node, the accessory pathway and necessarily portions of atria and ventricles. Junctional tachycardia is a rare form of nonparoxysmal supraventricular tachycardia, secondary to enhanced automaticity or triggered activity. By analyzing a 12-lead electrocardiogram during sinus rhythm and tachycardia, it is possible to accurately diagnose the specific type of supraventricular tachycardia.
房室交界区在电生理学中起核心作用，是室上性心动过速折返和自律形式的发病机制。在房室结折返性心动过速期间，折返环涉及位于房室结附近的两条电生理特性不同的径路。房室折返性心动过速是由几乎位于房室沟任何部位的旁路的存在引起的；大折返环包括房室结、旁路以及心房和心室的一定部分。交界性心动过速是一种罕见的非阵发性室上性心动过速，继发于自律性增强或触发活动。通过分析窦性心律和心动过速期间的12导联心电图，可以准确诊断室上性心动过速的具体类型。
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