apart from direct echocardiographic evidence of interventricular septal defect ( disorder of septo-aortal contact localization of both atrioventricular valves through the defect , without the separating interventricular septum ) , these patients showed signs of tricuspid valve dysfunction , such as increased amplitude and rate of anterior tricuspid cusp opening , pathologic anteriosystolic movement of the cusp , excessive and fragmentary movement of the septal cusp and , in isolated cases , flat-wave cusp fibrillation during ventricular systole , with increased ultimate diastolic diameter of the right ventricle and its outgoing tract .
C0040960
tricuspid valve
C0225931
septal cusp