PMID: 9160226May 1, 1997Paper

Electrophysiologic characteristics and radiofrequency catheter ablation in atrioventricular node reentrant tachycardia with second-degree atrioventricular block

Journal of Cardiovascular Electrophysiology
S H LeeM S Chang

Abstract

Detailed electrophysiologic study of AV nodal reentrant tachycardia (AVNRT) with 2:1 AV block has been limited. Six hundred nine consecutive patients with AVNRT underwent electrophysiologic study and radiofrequency catheter ablation of the slow pathway. Twenty-six patients with 2:1 AV block during AVNRT were designated as group I, and those without this particular finding were designated as group II. The major findings of the present study were: (1) group I patients had better anterograde and retrograde AV nodal function, shorter tachycardia cycle length (during tachycardia with 1:1 conduction) (307 +/- 30 vs 360 +/- 58 msec, P < 0.001), and higher incidence of transient bundle branch block during tachycardia (18/26 vs 43/609, P < 0.001) than group II patients; (2) 21 (80.8%) group I patients had alternans of AA intervals during AVNRT with 2:1 AV block. Longer AH intervals (264 +/- 26 vs 253 +/- 27 msec, P = 0.031) were associated with the blocked beats. However, similar HA intervals (51 +/- 12 vs 50 +/- 12 msec, P = 0.363) and similar HV intervals (53 +/- 11 vs 52 +/- 12, P = 0.834) were found in the blocked and conducted beats; (3) ventricular extrastimulation before or during the His-bundle refractory period bundle could con...Continue Reading

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Citations

May 6, 2005·Journal of Interventional Cardiac Electrophysiology : an International Journal of Arrhythmias and Pacing·Abdul WaseRaja Nazir
Oct 5, 2006·Journal of Interventional Cardiac Electrophysiology : an International Journal of Arrhythmias and Pacing·Tchavdar Nikolov ShalganovTamás Szili-Török
Aug 2, 2007·Journal of Interventional Cardiac Electrophysiology : an International Journal of Arrhythmias and Pacing·Kiyoshi OtomoShiro Kamakura
Mar 18, 1999·Journal of the American College of Cardiology·B P KnightF Morady
Oct 20, 1999·Pacing and Clinical Electrophysiology : PACE·P C LeeS A Chen
Apr 29, 1998·Journal of Cardiovascular Electrophysiology·S A ChenM S Chang
Sep 7, 2012·Clinical Medicine Insights. Cardiology·Antoine Kossaify, Maya Zeeny
Apr 27, 2005·Heart Rhythm : the Official Journal of the Heart Rhythm Society·Ernest W LauAnthony S L Tang
Oct 29, 2005·Heart Rhythm : the Official Journal of the Heart Rhythm Society·Huei-Sheng Vincent ChenGregory K Feld
Oct 22, 2008·Heart Rhythm : the Official Journal of the Heart Rhythm Society·Tarun MahajanEdward P Walsh
Apr 27, 2018·Journal of Cardiovascular Electrophysiology·Teerapat NantsupawatVenkatakrishna N Tholakanahalli
May 14, 2003·Journal of Cardiovascular Electrophysiology·Yenn-Jiang LinShih-Ann Chen
Apr 23, 2019·Journal of Arrhythmia·Krittapoom Akrawinthawong, Takumi Yamada
Jan 18, 2011·Journal of Cardiovascular Electrophysiology·Mark WoodKenneth Ellenbogen

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