Open AccessSuccessful sequential radiofrequency catheter ablation of anatomically discrete antegrade and retrograde accessory pathway conduction in the wolff‐parkinson‐white syndrome
Author(s) -
Tai YauTing,
Lau ChuPak,
Li John PoShan
Publication year - 1992
Publication title -
clinical cardiology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.263
H-Index - 72
eISSN - 1932-8737
pISSN - 0160-9289
DOI - 10.1002/clc.4960150313
Subject(s) - accessory pathway , medicine , catheter ablation , mitral annulus , electrical conduction system of the heart , anatomy , radiofrequency ablation , ablation , cardiology , atrioventricular node , radiofrequency catheter ablation , electrocardiography , tachycardia , blood pressure , diastole
Histopathologically, accessory atrioventricular (AV) pathways comprise tiny strands of working myocardium that traverse the AV groove and link between the atrial and ventricular myocardium. Antegrade and retrograde conduction in bidirectional accessory pathways have generally been considered to occur along the same fibers. This report details the successful catheter ablation of a left free wall accessory pathway with radiofrequency energy. Antegrade and retrograde conduction of the pathway were abolished sequentially by separate episodes of energy delivered at anatomically discrete though closely adjacent sites along the mitral annulus. This finding raises the interesting possibility of anatomic “compartmentalization” of antegrade and retrograde conduction along an accessory pathway. This study was supported in part by Research Grant 337–041–0017 of the University of Hong Kong.