Libyan Journal of Medicine
pISSN 1993-2820    eISSN 1819-6357
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Tachycardia-Induced Cardiomyopathy (Tachycardiomyopathy)
HA Mohamed 1
1 - Department of Medicine, Division of Cardiology, Regina General Hospital, Regina, SK, Canada
Libyan J Med 2007; 2(1):26-29
ICID: 870253
Article type: Review article
IC™ Value: 2.40
Abstract provided by Publisher
The term tachycardia-induced cardiomyopathy or tachycardiomyopathy refers to impairment in left ventricular function secondary to chronic tachycardia, which is partially or completely reversible once the tachyarrhythmia is controlled. Tachycardia-induced cardiomyopathy has been shown to occur both in experimental models and in patients with incessant tachyarrhythmia. Data from several studies and from case reports have shown that rate control by means of cardioversion, negative chronotropic agents, and surgical or catheter-based atrioventricular node ablation, resulted in significant improvement of systolic function.The diagnosis of tachycardia-induced cardiomyopathy is usually made following observation of marked improvement in systolic function after normalization of heart rate. Clinicians should be aware that patients with unexplained systolic dysfunction may have tachycardia-induced cardiomyopathy, and that controlling the arrhythmia may result in improvement of systolic function.

ICID 870253

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