What is the time course of reversal of tachycardia-induced cardiomyopathy? Response

I read with great interest the case report by Han et al . describing the rapid time course (<24 h) of reversal of a patient with tachycardia-induced cardiomyopathy following an atrial fibrillation (AF) ablation.1 I wish to highlight the observation that the time course of reversal of tachycardia-induced cardiomyopathy can be highly variable and unpredictable and can vary from 1 day to several months (and even up to a year). The time course of left ventricular (LV) function improvement is typically seen within days to weeks …