What About Tachycardia-induced Cardiomyopathy?

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Abstract

Long-standing tachycardia is a well-recognised cause of heart failure and left ventricular dysfunction, and has led to the nomenclature, tachycardia-induced cardiomyopathy (TIC). TIC is generally a reversible cardiomyopathy if the causative tachycardia can be treated effectively, either with medications, surgery or catheter ablation. The diagnosis is usually made after demonstrating recovery of left ventricular function with normalisation of heart rate in the absence of other identifiable aetiologies. One hundred years after the first reported case of TIC, our understanding of the pathophysiology of TIC in humans remains limited despite extensive work in animal models of TIC. In this review we will discuss the proposed mechanisms of TIC, the causative tachyarrhythmias and their treatment, outcomes for patients diagnosed with TIC, and future directions for research and clinical care.

Disclosure
The authors have no conflicts of interest to declare.
Correspondence
Mark E Josephson, Herman C. Dana Professor of Medicine, Harvard Medical School, Chief of the Cardiovascular Division, Beth Israel Deaconess Medical Center, Director, Harvard-Thorndike Electrophysiology Institute and Arrhythmia Service, Beth Israel Deaconess Medical Center, 330 Brookline Avenue, Boston, MA 02215, US. E: mjoseph2@bidmc.harvard.edu
Received date
28 April 2013
Accepted date
29 September 2013
Correspondence
Mark E Josephson, Herman C. Dana Professor of Medicine, Harvard Medical School, Chief of the Cardiovascular Division, Beth Israel Deaconess Medical Center, Director, Harvard-Thorndike Electrophysiology Institute and Arrhythmia Service, Beth Israel Deaconess Medical Center, 330 Brookline Avenue, Boston, MA 02215, US. E: mjoseph2@bidmc.harvard.edu
DOI
http://dx.doi.org/10.15420/aer.2013.2.2.82
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