J 2017

Correlates of Arrhythmia Recurrence After Hybrid Epi- and Endocardial Radiofrequency Ablation for Persistent Atrial Fibrillation

BULAVA, Alan, Ales MOKRACEK, Jiri HANIS, Martin EISENBERGER, Vojtech KURFIRST et. al.

Basic information

Original name

Correlates of Arrhythmia Recurrence After Hybrid Epi- and Endocardial Radiofrequency Ablation for Persistent Atrial Fibrillation

Authors

BULAVA, Alan (203 Czech Republic), Ales MOKRACEK (203 Czech Republic), Jiri HANIS (203 Czech Republic), Martin EISENBERGER (203 Czech Republic), Vojtech KURFIRST (203 Czech Republic) and Ladislav DUŠEK (203 Czech Republic, guarantor, belonging to the institution)

Edition

Circulation: Arrhythmia and Electrophysiology, Philadelphia, Lippincott Williams and Wilkins, 2017, 1941-3149

Other information

Language

English

Type of outcome

Článek v odborném periodiku

Field of Study

30201 Cardiac and Cardiovascular systems

Country of publisher

United States of America

Confidentiality degree

není předmětem státního či obchodního tajemství

Impact factor

Impact factor: 4.728

RIV identification code

RIV/00216224:14110/17:00097430

Organization unit

Faculty of Medicine

UT WoS

000407553700008

Keywords in English

atrial fibrillation; catheter ablation; endocardium; follow-up studies; ligaments; surgical procedure; cardiovascular

Tags

Tags

International impact, Reviewed
Změněno: 9/10/2017 16:22, Soňa Böhmová

Abstract

V originále

Long-term efficacy of catheter-based treatment of persistent atrial fibrillation is unsatisfactory. Minimally invasive surgical ablation techniques have been developed recently, but their efficacy has never been systematically tested. Methods and Results—Seventy patients (median age, 63.5 years) with persistent atrial fibrillation underwent epicardial thoracoscopic radiofrequency pulmonary vein isolation, linear ablation, Marshal ligament disruption, and exclusion of the left atrial appendage. The procedure was followed by electroanatomic mapping and ablation (EAM) 2 to 3 months later. Only 76% of patients were in normal sinus rhythm at the beginning of EAM. All 4 pulmonary veins and the left atrium posterior wall were found isolated in 69% and 23% of patients, respectively. Arrhythmia-free survival off antiarrhythmic drugs 12 months after EAM was 77%. Using previously ineffective antiarrhythmic drugs and reablation procedures, arrhythmia free-survival increased to 97% during follow-up (mean, 936±432 days; range, 346–1509 days). The majority of arrhythmia recurrences occurred during the first 12 months after EAM. In a multivariable-adjusted estimates, left atrium volume >165 mL, absent normal sinus rhythm at admission for EAM, and inducibility of any sustained tachyarrhythmia at the end of EAM procedure were identified as independent correlates of atrial fibrillation recurrence. Conclusions—Our report demonstrated that the majority of patients after epicardial ablation, using bipolar radiofrequency instruments, required endocardial catheter ablation to complete the linear ablation lesions and a significant proportion of patients required spot-ablations to complete electric pulmonary vein isolation. Noninducibility of any arrhythmia after a staged hybrid procedure seemed to be the strongest correlate of long-term arrhythmia-free survival.