Tachycardia-Induced Cardiomyopathy

Abstract

Tachycardia-induced cardiomyopathy (TIC) is characterized by reversible left ventricular (LV) dysfunction caused by long-standing tachycardia. The diagnosis of TIC is challenging due to lack of guidelines and specific assessment tools. Advanced imaging and endomyocardial biopsy should be taken into consideration in the future as contributors in the diagnostic process. There are numerous unknowns to TIC, the most pressing being the lack of diagnostic and prognostic tools. The presence of persistent negative LV remodeling after the normalization of the LV ejection fraction with adequate treatment of the tachycardia gives us a glimpse into the complex pathophysiologic processes at play, as well as the disease prognosis.

Keywords

• tachycardia-induced cardiomyopathy
• left ventricular dysfunction
• supraventricular tachycardia
• atrial fibrilation
• atrial flutter
• premature ventricular contractions