Key result
Tachycardia-induced cardiomyopathy is a potentially reversible cause of heart failure, often driven by atrial fibrillation, and diagnosed retrospectively after ventricular function improves with rate control.
Tachycardia-induced cardiomyopathy is a potentially reversible cause of heart failure that is diagnosed retrospectively after ventricular function improves with heart rate control.
Supports rate control in unexplained cardiomyopathy; leaves open prospective diagnostic criteria.
The prognosis of dilated cardiomyopathy is generally poor. The cause of ventricular dysfunction often cannot be identified. In most cases, the clinical history of cardiomyopathy is irreversible but, in some cases, potentially curable causes may be identified. The development of cardiomyopathy may be correlated to atrial or to ventricular arrhythmias. In this scenario, atrial fibrillation is the most frequent cause of ventricular dysfunction, even if it may also be secondary to heart failure. The diagnosis of tachycardia-induced cardiomyopathy can be made only after the improvement of the left ventricular function once the cardiac frequency has slowed down.
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Calò et al. (2007) conducted a review in Tachycardia-induced cardiomyopathy. Tachycardia-induced cardiomyopathy is a potentially reversible cause of heart failure, often driven by atrial fibrillation, and diagnosed retrospectively after ventricular function improves with rate control.
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