Arnold et al listed criteria for the diagnosis of tachycardia-induced cardiomyopathy (TICM). This is a cardiomyopathy that is potentially reversible with control of the underlying cause. The authors are from multiple universities in Canada.


Criteria for the diagnosis of tachycardia-induced cardiomyopathy:

(1) left ventricular dysfunction with or without clinical evidence of heart failure

(2) persistent tachyarrhythmia

(3) absence of another diagnosis that can explain the diagnosis better

(4) improvement in cardiac function with correction of the tachycardia


The cardiomyopathy is reversible if the tachycardia can be controlled. Failure to completely correct may indicate the presence of another disorder (mixed cardiomyopathy).


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