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Differential Clinical Characteristics and Prognosis of Patients with Longstanding Persistent Atrial Fibrillation Presenting with Recurrent Atrial Tachycardia versus Recurrent Atrial Fibrillation After First Ablation
Author(s) -
ZHAO LIANG,
WU SHAOHUI,
JIANG WEIFENG,
ZHOU LI,
GU JUN,
WANG YUANLONG,
LIU YUGANG,
ZHANG XIAODONG,
LIU XU
Publication year - 2014
Publication title -
journal of cardiovascular electrophysiology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.193
H-Index - 138
eISSN - 1540-8167
pISSN - 1045-3873
DOI - 10.1111/jce.12311
Subject(s) - medicine , cardiology , atrial fibrillation , ablation , atrial tachycardia , pulmonary vein , catheter ablation , mitral regurgitation
Baseline Characteristics and Prognosis of LS‐AF Patients Background It is unknown if baseline characteristics and prognosis of patients with longstanding persistent (defined as history greater than 1 year) atrial fibrillation (LS‐AF) differ among those with either recurrent atrial tachycardia (R‐AT) or recurrent AF (R‐AF) after first ablation. Methods In 222 consecutive LS‐AF patients treated for R‐AT or R‐AF after first ablation, activation and entrainment mapping was used to identify R‐AT mechanism and to guide the following ablation, and the ablation endpoints for all patients included complete pulmonary vein isolation, bidirectional block of lines, and disappearance of complex fractionated atrial electrograms. Results There were 102 patients in the R‐AF group. LS‐AF patients with R‐AT as compared to R‐AF had shorter AF duration and recurrence interval, smaller left atrium size and left ventricular end‐diastolic diameter, and less mitral and aortic regurgitation before first ablation. During follow‐up (17.7 ± 4.0 months) after R‐AT/R‐AF ablation, 78 LS‐AF patients developed recurrent atrial tachyarrhythmia, with lower overall and recurrence as AF in R‐AT versus R‐AF groups. Conclusions LS‐AF patients who develop R‐AT versus R‐AF after first ablation have more favorable baseline characteristics and prognosis.