PMID: 8946458Nov 1, 1996Paper

Radiofrequency ablation of atrial flutter and atrial tachycardias in patients with permanent indwelling catheters

Pacing and Clinical Electrophysiology : PACE
K H NewbyA Natale

Abstract

The presence of chronic indwelling leads in the area targeted for RF ablation may pose a technical challenge and reduce the chance of success of the ablation. In addition, application of lesions in close proximity to pacemaker leads or other permanent catheters could affect their function. Fourteen patients referred for RF ablation of atrial flutter/fibrillation and atrial tachycardia, who had a permanent dual chamber pacemaker (10 patients), ICD (1 patient), or both (3 patients) were studied to assess the safety, efficacy, and effects of the ablative procedure on device function. Lead impedance, R and P wave amplitude, and pacing threshold of the defibrillator and pacemaker were measured before and after ablation. The procedure was successful in all patients. In one patient who underwent both atrial flutter and atrial fibrillation ablation, the atrial pacing threshold increased from 1.0 preablation to 2.0 V postablation. No P wave was detectable after ablation. In another patient, the P wave amplitude went from 4.0 to 2.0 mV postablation. In both patients the device converted to the power reset mode. No changes were observed in the remaining patients. Postablation defibrillator testing showed no malfunction. Follow-up reinterr...Continue Reading

References

Jan 1, 1990·Pacing and Clinical Electrophysiology : PACE·M C ChinJ J Langberg
Jan 1, 1994·Pacing and Clinical Electrophysiology : PACE·A C ChangL Fananapazir
May 1, 1995·Pacing and Clinical Electrophysiology : PACE·D PfeifferB Lüderitz
Feb 1, 1994·Journal of the American College of Cardiology·Y UedaK Kodama
Mar 15, 1993·The American Journal of Cardiology·F G CosioJ L Barroso
Mar 15, 1993·Journal of the American College of Cardiology·C M TracyD Mukherjee

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Citations

Dec 20, 2005·Heart Rhythm : the Official Journal of the Heart Rhythm Society·Dhanunjaya LakkireddyAndrea Natale
May 4, 2016·Journal of Cardiovascular Electrophysiology·Yousef H DarratClaude-Samy Elayi
Aug 14, 2019·Scandinavian Cardiovascular Journal : SCJ·Michal M FarkowskiMariusz Pytkowski
Mar 19, 2021·BMJ Case Reports·Keiko ShimamotoKengo Fukushima Kusano

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