Atrioventricular node anatomy and physiology: implications for ablation of atrioventricular nodal reentrant tachycardia

被引:22
作者
Lee, Pi-Chang [1 ]
Chen, Shih-Ann [2 ]
Hwang, Betau [1 ]
机构
[1] Taipei Vet Gen Hosp, Dept Pediat, Taipei, Taiwan
[2] Taipei Vet Gen Hosp, Dept Med, Taipei, Taiwan
关键词
atrioventricular nodal reentrant tachycardia; atrioventricular node; SLOW-PATHWAY ABLATION; RADIOFREQUENCY CATHETER ABLATION; CORONARY-SINUS MORPHOLOGY; PROLONGED PR INTERVAL; BUNDLE-BRANCH BLOCK; ELECTROPHYSIOLOGICAL CHARACTERISTICS; SUBTHRESHOLD STIMULATION; KOCHS TRIANGLE; CONDUCTION; CRYOABLATION;
D O I
10.1097/HCO.0b013e328323d83f
中图分类号
R5 [内科学];
学科分类号
1002 ; 100201 ;
摘要
Purpose of review Atrioventricular nodal reentrant tachycardia (AVNRT) is the most common arrhythmia in patients with regular supraventricular tachycardia. Selective radio frequency catheter ablation of the slow pathway has afforded an ideal method to treat most patients with AVNRT, However, there are still some controversies and recent developments concerning the ablation for patients with AVNRT. The purpose of this review is to elucidate the anatomy and physiology of the atrioventricular node and implications for the ablation of AVNRT. Recent findings The sequential ablation sites for slow pathway ablation are suggested as the isthmus between tricuspid annulus and coronary sinus ostium, the tricuspid edge of coronary sinus ostium by moving the ablation catheter tip slightly in and out of the coronary sinus, the septum lower than coronary sinus ostium, moving higher up on the half of Koch's triangle along the septum, one or two burns inside the first centimeter of the coronary sinus, left side of the septum. Summary It is imperative to recognize the detailed anatomy and physiology of the atrioventricular node in every individual patient before the ablation of AVNRT.
引用
收藏
页码:105 / 112
页数:8
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