on the basis of these findings , we recommend endomyocardial biopsy ( 1 ) in patients with dilated cardiomyopathy in whom myocarditis is suspected , ( 2 ) in patients with the clinical diagnosis of active myocarditis in whom tissue documentation is indicated before treatment with anti-inflammatory or immunosuppressive drugs , ( 3 ) in patients with clinically unexplained life-threatening dysrhythmias in whom myocarditis or cardiomyopathy may be present , and ( 4 ) in patients with apparent hypertrophic or restrictive cardiomyopathy in whom cardiac amyloid may be present .
C0878544
cardiomyopathy
C0018787
cardiac