clinical and hemodynamic manifestation included onset at less than 1 year of age ( 89 % ) , respiratory distress ( 71 % ) , cardiomegaly on chest roentgenogram ( 99 % ) , left ventricular hypertrophy with st-t-wave changes on the electrocardiogram ( 97 % ) and reduced contractility with dilatation of the left ventricle ( 100 % ) .
C0018800
cardiomegaly
C0149721
left ventricular