Loss of left bundle branch block following biventricular pacing therapy for heart failure: Evidence for electrical remodeling?

被引:18
作者
Dizon, J
Horn, E
Neglia, J
Medina, N
Garan, H
机构
[1] Columbia Univ, Columbia Presbyterian Med Ctr, Dept Med, Div Cardiol, New York, NY 10032 USA
[2] Medtronic Inc, Minneapolis, MN USA
关键词
biventricular pacing; left bundle branch block;
D O I
10.1023/B:JICE.0000011484.61659.b1
中图分类号
R5 [内科学];
学科分类号
1002 ; 100201 ;
摘要
Cardiac resynchronization therapy has been proven to improve symptoms and indices of left ventricular function in patients with heart failure and intraventricular conduction delays. We present a case of a patient with New York Association Class III heart failure and left bundle branch block, who received a biventricular pacemaker in order to achieve cardiac resynchronization. Her symptoms improved markedly, as did left ventricular ejection fraction and dimensions. In addition, her intrinsic QRS duration normalized. This may represent a salutory effect of biventricular pacing on electrical remodeling.
引用
收藏
页码:47 / 50
页数:4
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