Oct 1, 1989

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

Pacing and Clinical Electrophysiology : PACE
R SanjuanV López-Merino


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.

Mentioned in this Paper

Biochemical Pathway
Supraventricular Tachycardia
Anti-Arrhythmia Agents
Atrioventricular Block
Recurrence (Disease Attribute)
Structure of Atrioventricular Node
Electrophysiology (Science)
NODAL gene
Cardiac Pacing, Artificial
Cardiac Conduction

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