PEDIATRIC CARDIOLOGY Surgical Management of Severe Aortic Outtt,)w Obstruction in Lesions Other Than the Hypoplastic Left Heart Syndrome : Use of a Pulmonary Artery to Aorta Anastomosis

Between December 1985 and April 1990, 50 infants with a sanely of congenital cardiac lesions other than the 'sooplastic left heart syndrome underwent surgical relief of aortic outflow obstruction by creation of a pulmonary artery to aorta anastomasis . The patients were grouped anatomically by eentriculnarterial align . ment. Nineteen had normally aligned great arteries (group II ; 25 had transposition of the great arteries, all with a univenlrirular heart of left ventricular morphology (group 1I1 ; and 6 had a double-outlet right ventricle Igroup 111) . :111 patients had either aortic stenosis with atresia, subaorlic stenosis or a restrictive ventricular septa) defect . Sisleen had normal arch anatomy ; 34 had arch anomalies consisting of arch hypoplasia in = 171 . coarctation in = 11), interruption of the arch m = 41 and complex arch anomalies In = 21 . Surgery was performed al a median age of 11) days trance 2 to 1811. Of the 50 infants, 33 surnited . No significant difference in early survival (30 days) was noted among the groups of saving