Transvenous ablation with high frequency energy for atrioventricular junctional (AV nodal) reentrant tachycardia.

Pacing and Clinical Electrophysiology : PACE
R SanjuanV López-Merino

Abstract

We performed transcatheter AV junction ablation with high frequency energy in four patients with AV nodal reentrant tachycardia where extensive trials of several antiarrhythmic drugs failed to prevent further recurrences of tachycardia. Initially high frequency catheter ablation induced complete AV block in all patients. A recuperation of AV 1:1 conduction followed some time later, persisting in follow-up. No complications have been encountered in either the acute phase or the follow-up (from 6 to 8 months; mean +/- SD: 8.7 +/- 2.5 months). The electrophysiological study was carried out 6 weeks following ablation, and all patients showed AV 1:1 conduction. No dual nodal pathway was encountered and no tachycardia could be triggered. With refinement of the method, the potential application of high frequency energy to interrupt intranodal or perinodal connections responsible for reentrant supraventricular tachycardia or to retard AV nodal conduction appears promising.

Citations

Feb 10, 2007·Revista española de cardiología·José Luis Merino
Jun 1, 1990·Pacing and Clinical Electrophysiology : PACE·J SanchisV Valentin
Aug 1, 1990·Pacing and Clinical Electrophysiology : PACE·I Singer, J Kupersmith
Jan 1, 1991·Pacing and Clinical Electrophysiology : PACE·S K Huang
May 19, 1998·Pacing and Clinical Electrophysiology : PACE·F J ChorroV López-Merino
Apr 8, 1999·Pacing and Clinical Electrophysiology : PACE·F J Chorro-GascóV López-Merino
Dec 10, 1990·Journal of Interventional Cardiology·M A LeeM Lev
Dec 1, 1990·Pacing and Clinical Electrophysiology : PACE·M HaissaguerreP Montserrat

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