Ano maly in a Neonate

25-DAY-OLD NEONATE (male, weight 2.2 kg, body Asurface area: 0.18) presented in respiratory distress. Transthoracic echocardiography reported situs solitus (S,D,S) with atrioventricular and ventriculoarterial concordance; secundum atrial septal defect (5 mm) with left-to-right shunt; dilated left atrium; severe mitral stenosis (peak/ mean mitral valve gradients: 30/18 mmHg, at valvular and subvalvular levels), pulmonary artery systolic pressure of 60 mmHg, and a moderate size (5 mm) perimembranous ventricular septal defect with bidirectional shunt. The left ventricular outflow tract gradient was 20 mmHg, and the aortic valve was normal. The mitral valve was dysplastic, with elongated leaflets with no chordae inserting into a single anterolateral papillary muscle. The baby was transported to the operating room for possible biventricular correction and