Long-term outcome following successful catheter ablation of atrial tachycardia originating from the pulmonary veins: absence of late atrial fibrillation

Journal of Cardiovascular Electrophysiology
Andrew W TehPeter M Kistler

Abstract

This study aimed to characterize the long-term outcome and incidence of atrial fibrillation (AF) in patients following catheter ablation of focal atrial tachycardia (AT) from the pulmonary veins (PV). Although both AT and AF may originate from ectopic foci within PVs, it is unknown whether PV AT patients subsequently develop AF. Twenty-eight patients with 29 PV ATs (14%) from a consecutive series of 194 patients who underwent RFA for focal AT were included. Patients with concomitant AF prior to the index procedure were excluded. The minimum follow-up duration was 4 years; mean age 38 +/- 18 years with symptoms for 6.5 +/- 10 years, having tried 1.5 +/- 0.9 antiarrhythmic drugs. The distribution of foci was: left superior 12 (41%), right superior 10 (34%), left inferior 5 (17%), and right inferior 2 (7%). The focus was ostial in 93% and 2-4 cm distally within the vein in 7%. Mean tachycardia cycle length was 364 +/- 90 ms. Focal ablation was performed in 25 of 28 patients. There were 6 recurrences with 5 from the original site. Twenty-six patients were available for long-term clinical follow-up. At a mean of 7.2 +/- 2.1 years, 25 of 26 (96%) were free from recurrence off antiarrhythmic drugs. No patients developed AF. Focal abla...Continue Reading

References

Nov 1, 1995·Journal of the American College of Cardiology·C W TangM D Lesh
Sep 3, 1998·The New England Journal of Medicine·M HaïssaguerreJ Clémenty
Jul 26, 2002·Journal of Cardiovascular Electrophysiology·Hakan OralFred Morady
Aug 2, 2003·Journal of Cardiovascular Electrophysiology·Alejandro Perez-LugonesAndrea Natale
Sep 5, 2006·Journal of the American College of Cardiology·Peter M KistlerJonathan M Kalman
Jan 19, 2007·Journal of Cardiovascular Electrophysiology·Thomas ArentzMichel Haïssaguerre
Jun 10, 2008·American Journal of Physiology. Heart and Circulatory Physiology·Alex Y TanPeng-Sheng Chen
Jun 6, 2009·Journal of Cardiovascular Electrophysiology·Andrew W TehJonathan M Kalman

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Citations

Mar 1, 2011·Journal of Electrocardiology·Hisashi YokoshikiHiroyuki Tsutsui
May 22, 2010·Pacing and Clinical Electrophysiology : PACE·Patrick M Heck, Jonathan M Kalman

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