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- Title
Electrophysiologic Findings and Long-Term Outcomes in Patients Undergoing Third or More Catheter Ablation Procedures for Atrial Fibrillation.
- Authors
LIN, DAVID; SANTANGELI, PASQUALE; ZADO, ERICA S.; BALA, RUPA; HUTCHINSON, MATHEW D.; RILEY, MICHAEL P.; FRANKEL, DAVID S.; GARCIA, FERMIN; DIXIT, SANJAY; CALLANS, DAVID J.; MARCHLINSKI, FRANCIS E.
- Abstract
Outcomes After Third or More Catheter Ablation for Atrial Fibrillation Introduction Pulmonary vein (PV) status, arrhythmia sources, and outcomes with ≥3 ablation procedures have not been characterized. Methods and Results All patients with ≥3 procedures were included and underwent antral reisolation of reconnected PVs and ablation of non-PV triggers. Of 2,886 patients who underwent PVI, 181 (6%) had more than 2 ablation procedures (3 procedures in 146 and ≥4 procedures in 35). In 12 patients, the clinical arrhythmia was other than AF. Of the remaining 169 patients, 69 (41%) had 4 reconnected PVs, 27 (16%) had 3, 31 (18%) had 2, and 29 (17%) had 1. Only 13 (8%) had all PVs still isolated. Provocative techniques in 127 patients initiated PV triggers in 92 patients, including AF or PV atrial tachycardia in 64 (50%), and reproducible PV APDs in 28 (22%). Thirty-six (20%) had a new non-PV trigger targeted. At a mean of 36 months (12-119 months) after last procedure, 63 patients (47%) had no AF off antiarrhythmic drugs (AAD); 28 (21%) had no AF with AAD; and 18 (13%) had rare AF with good symptom control; 26 patients (19%) had recurrent AF. Conclusions At time of third or greater AF ablation, PV reconnection is the rule (92%) and PV triggers initiating AF can be demonstrated. Following repeat PVI and targeting non-PV triggers, 81% of patients had clinical AF control. Our findings suggest that PV reisolation and attempts to identify and eliminate non-PV triggers are effective and support the role of multiple repeat procedures for AF recurrence.
- Subjects
MYOCARDIAL depressants; ATRIAL fibrillation; CATHETER ablation; CONFIDENCE intervals; FISHER exact test; PROBABILITY theory; PULMONARY veins; REOPERATION; SURGICAL complications; T-test (Statistics); COMORBIDITY; DISEASE relapse; LOGISTIC regression analysis; TREATMENT effectiveness; DATA analysis software; ODDS ratio; MANN Whitney U Test; THERAPEUTICS
- Publication
Journal of Cardiovascular Electrophysiology, 2015, Vol 26, Issue 4, p371
- ISSN
1045-3873
- Publication type
Article
- DOI
10.1111/jce.12603