High-resolution mapping of pulmonary vein potentials improved the successful pulmonary vein isolation using small electrodes and inter-electrode spacing catheter

International Journal of Cardiology
Chin-Yu LinShih-Ann Chen

Abstract

Intracardiac electrogram recording is influenced by the electrode size and inter-electrode spacing. Smaller electrodes with a closer inter-electrode spacing may improve the mapping resolution and outcome. Substrate mapping of the left atrium and residual pulmonary vein (PV) potentials during sinus rhythm was sequentially performed using a 3.5-mm electrode tip catheter and a 1-mm electrode multielectrode catheter in 33 patients (Group 1) that underwent repeat atrial fibrillation (AF) procedures. PV gap identification and electrophysiological characteristics were compared. Arrhythmia freedom was compared with a propensity matched (1:2) control group (66 patients, Group 2) undergoing repeat AF procedures guided by wide inter-electrode spacing catheter. In the Group 1 patients, the total area of residual PV potentials measured using the 1-mm catheter was larger than that measured by the 3.5-mm catheter. Overall 1.97 ± 0.59 (1-3) and 1.49 ± 0.62 (1-3) PVs were identified by the 1-mm electrode and 3.5 mm catheters, respectively (P = 0.02). The gaps not identified by the 3.5 mm catheter had a smaller width and lower voltage. Radiofrequency catheter ablation in the areas with residual PV potentials identified by the 1-mm catheter resul...Continue Reading

Citations

Dec 6, 2018·Current Opinion in Cardiology·Yenn-Jiang LinShih-Ann Chen
Feb 26, 2019·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·Clemens Jilek, Waqas Ullah
Oct 4, 2019·Journal of Interventional Cardiac Electrophysiology : an International Journal of Arrhythmias and Pacing·Martin SeifertC Butter
Apr 1, 2020·Journal of Cardiovascular Electrophysiology·Jennifer Jeanne B ViceraShih-Ann Chen
Feb 28, 2021·Journal of Interventional Cardiac Electrophysiology : an International Journal of Arrhythmias and Pacing·Nikolaos PapageorgiouAnthony W C Chow
Jul 20, 2019·JACC. Clinical Electrophysiology·Raphaël P MartinsDominique Pavin
May 28, 2021·Computers in Biology and Medicine·Bahareh AbdiRichard C Hendriks

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