Ablation for Atrial Fibrillation Combined With Left Atrial Appendage Closure

JACC. Clinical Electrophysiology
Arash AlipourL V A Boersma

Abstract

The study sought to determine long-term clinical effects of combining catheter ablation (CA) and left atrial appendage (LAA) occlusion (LAAO) in a single procedure. CA relieves symptoms in atrial fibrillation (AF), but freedom from AF is not assured. Thus, oral anticoagulation (OAC) remains necessary in high stroke risk patients. LAAO has proved a viable alternative for preventing thromboembolic complications. Symptomatic patients with drug-refractory AF (CHADS2 ≥1) and indications for LAAO were included. Transesophageal echocardiography was performed to assess LAA size/anatomy/thrombus. After CA, LAAO was performed using the Watchman device (Atritech, Inc., Plymouth, Minnesota, Minnesota). At 3 months, OAC was switched to aspirin/clopidogrel if LAAO criteria were met. From September 2009 to October 2013, 62 patients (22 female, 64 ± 8 years of age, CHADS2 2.5) underwent combined procedures. Indications for LAAO included history of stroke despite OAC (29.0%), contraindications for OAC (24.2%), high stroke risk (24.2%), and miscellaneous reasons (22.6%). LAAO resulted in complete acute closure in all, with a median number of 1 device. After a median follow-up of 38 (range: 25 to 45) months, 95% of the patients met the criteria f...Continue Reading

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