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Effects of atrial fibrillation on treatment of mitral regurgitation in the EVEREST II (Endovascular Valve Edge-to-Edge Repair Study) randomized trial.

Abstract：

OBJECTIVES:The purpose of this study was to characterize patients with mitral regurgitation (MR) and atrial fibrillation (AF) treated percutaneously using the MitraClip device (Abbott Vascular, Abbott Park, Illinois) and compare the results with surgery in this population. BACKGROUND:The EVEREST II (Endovascular Valve Edge-to-Edge Repair Study) randomized controlled trial compared a less invasive catheter-based treatment for MR with surgery, providing an opportunity to assess the impact of AF on the outcomes of both the MitraClip procedure and surgical repair. METHODS:The study population included 264 patients with moderately severe or severe MR assessed by an independent echocardiographic core laboratory. Comparison of safety and effectiveness study endpoints at 30 days and 1 year were made using both intention-to-treat and per-protocol (cohort of patients with MR ≤2+ at discharge) analyses. RESULTS:Pre-existing AF was present in 27% of patients. These patients were older, had more advanced disease, and were more likely to have a functional etiology. Similar reduction of MR to ≤2+ before discharge was achieved in patients with AF (83%) and in patients without AF (75%, p = 0.3). Freedom from death, mitral valve surgery for valve dysfunction, and MR >2+ was similar at 12 months for AF patients (64%) and for no-AF patients (61%, p = 0.3). At 12 months, MR reduction to <2+ was greater with surgery than with MitraClip, but there was no interaction between rhythm and MR reduction, and no difference in all-cause mortality between patients with and patients without AF. CONCLUSIONS:Atrial fibrillation is associated with more advanced valvular disease and noncardiac comorbidities. However, acute procedural success, safety, and 1-year efficacy with MitraClip therapy is similar for patients with AF and without AF.

journal_name

J Am Coll Cardiol

journal_title

Journal of the American College of Cardiology

authors

Herrmann HC,Gertz ZM,Silvestry FE,Wiegers SE,Woo YJ,Hermiller J,Segar D,Heimansohn D,Gray W,Homma S,Argenziano M,Wang A,Jollis J,Lampert MB,Alexander J,Mauri L,Foster E,Glower D,Feldman T

doi

10.1016/j.jacc.2011.12.023

subject

Has Abstract

pub_date

2012-04-03 00:00:00

pages

1312-9

issue

eissn

0735-1097

issn

1558-3597

pii

S0735-1097(12)00245-8

journal_volume

pub_type

杂志文章,多中心研究,随机对照试验

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Effects of atrial fibrillation on treatment of mitral regurgitation in the EVEREST II (Endovascular Valve Edge-to-Edge Repair Study) randomized trial.