in this study dcm in the aged was defined as 1 ) cases of refractory heart failure with marked cardiomegaly of unknown cause by clinical and pathologic examinations , excluding hypertensive heart disease , ischemic heart disease , and valvular heart disease , and 2 ) pathologic examinations showing cardiac weight more than 400 g , normal coronary arteries with less than 9/15 coronary stenotic index ( csi ) and a globular shaped heart with marked dilatation of the left ventricle .
C0018787
cardiac
C0225897
heart