Surgical palliation of subaortic stenosis in the univentricular heart.

摘要: Seventeen patients with a univentricular atrioventricular connection and subaortic stenosis at the outlet foramen level were seen from 1974 until 1983. The ventricular anatomy was of single left ventricle an chamber, great arteries transposed. This condition often followed pulmonary artery banding (15 cases) but also occurred pulmonic (one) or atresia (one). median interval to detection after 2.3 years (range 11 days 15 years). Thirteen had resting gradient 118 mm Hg three only isoprenaline infusion. following surgical procedures have been performed: (1) insertion conduit between aorta (one patient); (2) creation aorticopulmonary window proximal band tightening (three patients); (3) enlargement septal defect (4) Fontan procedure (five (5) plus arterial switch (two patients). All last one met significant mortality in tins difficult group patients.