A ventricular septal defect (VSD) occurs when there is direct ... Ventricular septal defects are classified as membranous, perimembranous, supracristal (infundibular or subpulmonic) or muscular.
He had been diagnosed with membranous ventricular septal defect (VSD) during childhood, but had received no regular monitoring or treatment for this condition. There was no history of prolonged ...
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