Incidence, location, and cause of recovery of electrical connections between the pulmonary veins and the left atrium after pulmonary vein isolation

Europace : European Pacing, Arrhythmias, and Cardiac Electrophysiology : Journal of the Working Groups on Cardiac Pacing, Arrhythmias, and Cardiac Cellular Electrophysiology of the European Society of Cardiology
Takumi YamadaToyoaki Murohara

Abstract

The aim of this study was to reveal the incidence, location, and cause of recovery of the electrical connections (ECs) between the left atrium and the pulmonary veins (PVs) after the segmental ostial PV isolation (PVI). Pulmonary vein mapping and successful PVI were performed using a computerized three-dimensional mapping system (QMS2trade mark) with a basket catheter in 167 PVs in 53 consecutive patients with atrial fibrillation (AF). In 14 patients with recurrent AF after PVI, the same PV mapping and isolation as in the first procedure were performed, and the PV potential maps constructed by QMS2 in two different procedures were compared. Forty-nine recovered ECs were observed in 27 PVs, and all were eliminated by a few local radiofrequency (RF) applications. Thirty-four (69%) of those ECs recovered at the edge of original ECs, and another 15 (31%) recovered at the mid-portion of the continuous broad original ECs. Electrical connection recovery occurred most commonly at the edges of original ECs and occasionally at the mid-portion of continuous broad original ECs after PVI probably due to tissue oedema neighbouring the segmental RF lesions. Further RF lesions at the edge of original ECs and linear ablation to the continuous b...Continue Reading

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Feb 18, 2005·Journal of Interventional Cardiac Electrophysiology : an International Journal of Arrhythmias and Pacing·Takumi YamadaToyoaki Murohara

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Citations

Sep 23, 2008·Journal of Interventional Cardiac Electrophysiology : an International Journal of Arrhythmias and Pacing·Hailong TaoChangsheng Ma
Nov 27, 2007·Circulation Journal : Official Journal of the Japanese Circulation Society·Takumi YamadaG Neal Kay
Feb 20, 2009·Circulation Journal : Official Journal of the Japanese Circulation Society·Naoki YoshidaToyoaki Murohara
Jul 18, 2009·Circulation Journal : Official Journal of the Japanese Circulation Society·Takumi YamadaToyoaki Murohara
Nov 17, 2009·Journal of Cardiovascular Electrophysiology·Yves De GreefMattias Duytschaever
Dec 4, 2009·Pacing and Clinical Electrophysiology : PACE·Ramtin AnoushehGregory K Feld
Feb 23, 2010·IEEE Transactions on Bio-medical Engineering·Benjamin R KnowlesKawal S Rhode
Mar 17, 2018·Journal of Cardiovascular Magnetic Resonance : Official Journal of the Society for Cardiovascular Magnetic Resonance·Philippa R P KrahnGraham A Wright
Sep 29, 2018·Journal of Interventional Cardiac Electrophysiology : an International Journal of Arrhythmias and Pacing·Chirag R BarbhaiyaLarry A Chinitz

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