Strategies to Improve Safety and Efficacy of Atrial Fibrillation Ablation Using Electrode Multipolar Phased RF PVAC™ Catheter: a Case Report

Journal of Atrial Fibrillation
Fabio DorfmanCézar Mesas

Abstract

Phased radiofrequency ablation with a single catheter technique, using a 9-electrode circumferential catheter, is a viable approach to pulmonary vein isolation for the treatment of atrial fibrillation. However, creating effective transmural lesions with such technique, while avoiding serious complications like atrioesophageal fistula, can be difficult. This case illustrates a challenging scenario, where catheter maneuvers fail to allow safe radiofrequency delivery, due to esophageal temperature rise, despite extensive navigating maneuvers. Changing the bipolar-to-unipolar ratio of energy delivery, from 2:1 to 4:1, allowed the creation of effective lesions, avoiding excessive increase in esophageal temperature.

References

May 21, 2014·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·J McCreadyP D Lambiase
Mar 18, 2015·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·Cory M TschabrunnElad Anter

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Citations

May 23, 2019·Arrhythmia & Electrophysiology Review·Marius AndronacheGraziana Viola

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