Unmasking the prevalence of amyloid cardiomyopathy in the real world: results from Phase 2 of the AC‐TIVE study, an Italian nationwide survey

To investigate the prevalence of amyloid cardiomyopathy and the diagnostic accuracy of echocardiographic red flags of AC among consecutive adult patients undergoing transthoracic e chocardiogram for reason other than AC in 13 Italian institutions, a large number of patients are diagnosed with AC.