Long-term follow-up after atrial fibrillation ablation in patients with impaired left ventricular systolic function: The importance of rhythm and rate control

被引:65
作者
Nedios, Sotirios [1 ]
Sommer, Philipp [1 ]
Dagres, Nikolaos [2 ]
Kosiuk, Jedrzej [1 ]
Arya, Arash [1 ]
Richter, Sergio [1 ]
Gaspar, Thomas [1 ]
Kanagkinis, Nikolaos [1 ]
Dinov, Borislav [1 ]
Piorkowski, Christopher [1 ]
Bollmann, Andreas [1 ]
Hindricks, Gerhard [1 ]
Rolf, Sascha [1 ]
机构
[1] Univ Leipzig, Dept Electrophysiol, Ctr Heart, D-04289 Leipzig, Germany
[2] Univ Athens, Attikon Hosp, Cardiol Dept 2, Athens, Greece
关键词
Atrial fibrillation; Catheter ablation; Left ventricular dysfunction; Heart failure; CONGESTIVE-HEART-FAILURE; PULMONARY-VEIN ISOLATION; CATHETER ABLATION; SINUS RHYTHM; HEMODYNAMIC-CHANGES; DYSFUNCTION; CARDIOMYOPATHY; MORTALITY; CARDIOVERSION; REVERSAL;
D O I
10.1016/j.hrthm.2013.12.031
中图分类号
R5 [内科学];
学科分类号
1002 ; 100201 ;
摘要
BACKGROUND Atrial fibrillation (AF) ablation is increasingly used in patients with reduced left ventricular ejection fraction (LVEF), but long-term outcomes are still unknown. OBJECTIVE To assess the long-term effects of AF ablation in patients with systolic heart failure according to rhythm outcome. METHODS We included 69 patients with LVEF <40%, referred for circumferential pulmonary vein isolation with or without additional substrate modification to our institution in 2006-2010. Follow-up included 7-day Hotter electrocardiography and echocardiography at baseline and at 6, 12, and 24 months after ablation. A matched control group (n = 69) after AF ablation without heart failure was used for comparison. RESULTS After 28 +/- 11 months and 1.6 +/- 0.7 ablation procedures, 45 (65%) patients were still in the stable sinus rhythm (SSR) group. LVEF increased from 33 +/- 6% to 53 +/- 110/0 (P <.001) in the SSR group and from 33 +/- 5% to 38 +/- 12% (P =.03) in patients with recurrences (atrial tachycardia/fibrillation group). While LVEF increase was similar in the 2 groups at 6 months (15 +/- 12% vs 8 +/- 11%; P =.2), further LVEF improvements were observed in the SSR group only. Adjustments for baseline characteristics revealed that the increase in LVEF at 6 months was associated with higher baseline heart rate and not with rhythm outcome. Heart rate did not change in either group after 6 months of follow-up. Complications and procedural data of the study group were similar to the control group. fCONCLUSION In patients with heart failure undergoing AF ablation, there is an initial short-term LVEF improvement related to baseline heart rate. However, tong-term LVEF improvement is associated with rhythm outcome.
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收藏
页码:344 / 351
页数:8
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