This study was undertaken to characterize the clinical, subclinical in VSD patient or 2/3 the original diameter aorta (83.7 percent)
Left to right shunt (79.5 percent), Bidirectional shunt (20.5 percent)
pulmonary artery hypertention (86.3 percent). In conclusion, ventricular septal defect patient under 6 months with large ventricular septal pulmonary hypertension severe should have surgery.