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Catheter ablation of atrial fibrillation in patients with severely impaired left ventricular systolic function
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Catheter ablation of atrial fibrillation in patients with severely impaired left ventricular systolic function
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Catheter ablation of atrial fibrillation in patients with severely impaired left ventricular systolic function
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Journal Article
Catheter ablation of atrial fibrillation in patients with severely impaired left ventricular systolic function
2016
Overview
Little is known about the outcome of catheter ablation of atrial fibrillation (AF) in patients with heart failure (HF) and a severely reduced left ventricular ejection fraction (LVEF). We aimed to clarify the effectiveness of catheter ablation of AF in patients with a severely low LVEF. This retrospective study included 18 consecutive patients with HF and an LVEF of ≤35 % who underwent catheter ablation of AF. We investigated the clinical parameters, echocardiographic parameters and the incidence of hospitalizations for HF. During a median follow-up of 21 months (IQR, 13–40) after the final procedure (9 with repeat procedures), 11 patients (61 %) maintained sinus rhythm (SR) (6 with amiodarone). The LVEF and NYHA class significantly improved at 6 months after the CA in 12 patients (67 %) who were in SR or had recurrent paroxysmal AF (from 25.8 ± 6.3 to 37.0 ± 11.7 %,
P
= 0.02, and from 2.3 ± 0.5 to 1.5 ± 0.7,
P
< 0.01, respectively) but not in patients who experienced recurrent persistent AF. The patients with SR or recurrent paroxysmal AF had significantly fewer hospitalizations for HF than those with recurrent persistent AF after the AF ablation (log-rank test;
P
< 0.01). Catheter ablation of AF improved the clinical status in patients with an LVEF of ≤35 %. A repeat ablation procedure and amiodarone were often necessary to obtain a favorable outcome.
Publisher
Springer Japan,Springer Nature B.V
Subject
/ Atrial Fibrillation - diagnosis
/ Atrial Fibrillation - physiopathology
/ Atrial Fibrillation - surgery
/ Biomedical Engineering and Bioengineering
/ Echocardiography, Transesophageal
/ Female
/ Heart Conduction System - physiopathology
/ Heart Conduction System - surgery
/ Heart Ventricles - diagnostic imaging
/ Heart Ventricles - physiopathology
/ Humans
/ Male
/ Medicine
/ Multidetector Computed Tomography
/ Patients
/ Sinuses
/ Systole
/ Ventricular Dysfunction, Left - complications
/ Ventricular Dysfunction, Left - diagnosis
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