A 22-year-old man presented with severe left ventricular (LV) dysfunction and progressive heart failure. The 12-lead electrocardiogram showed short runs of supraventricular tachycardia suggestive of focal atrial tachycardia. The patient underwent successful radiofrequency ablation. There was a complete recovery of symptoms and LV function at six months of follow-up. We discuss the importance of identifying tachycardiomyopathy as a reversible cause of heart failure.
Keywords: atrial tachycardia; cardiac electrophysiology; electrocardiogram (ecg/ekg); heart failure; left ventricular systolic dysfunction; radiofrequency ablation; supraventricular tachycardia; tachycardiomyopathy.
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