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European Journal of Cardio-Thoracic Surgery, Vol 4, 365-370, Copyright © 1990 by European Association for Cardio-thoracic Surgery

ARTICLES

Primary definitive repair of interrupted aortic arch with ventricular septal defect

PR Vouhe, L Mace, F Vernant, P Jayais, P Pouard, P Mauriat, F Leca and JY Neveux
Department of Cardiac Surgery, Laennec Hospital, Paris, France.

The optimal surgical management (primary or staged repair) of interrupted aortic arch (IAA) with ventricular septal defect (VSD) remains to be determined. A consecutive series of 14 neonates, aged 3- 18 days (mean: 10 +/- 6 days) underwent primary complete repair. Mean weight was 3.3 +/- 0.4 kg. Eleven patients had IAA type B, 2 had type A and 1 had type C. Six infants had the Di George syndrome. Preoperative management (mean: 5 +/- 4 days) included prostaglandin E1 (14/14), intubation and ventilation (13/14), and inotropic support (11/14). Surgery was performed under deep hypothermia and circulatory arrest and involved resection of all ductal tissue, direct end-to-side aortic arch anastomosis and patch closure of the VSD. There were 2 early deaths (14%, 70% CL: 5%-31%): low cardiac output (1), residual VSD (1). Four patients (33%, 70% CL: 13%-52%) underwent reoperation for recurrent aortic obstruction (3 patients, 1 death) or left ventricular outflow tract obstruction (LVOTO) (1 patient). The results improved with time: no death and no recurrent aortic obstruction in the last 8 patients. At last follow-up (11 patient, mean follow-up = 24 +/- 9 months), all patients were free of cardiac symptoms; none had persistent aortic obstruction; 4 had LVOTO (gradient greater than 20 mm Hg) and 1 (with the Di George syndrome) had severe mental disorders. Primary complete repair provides satisfactory results in most infants born with IAA and VSD. An adequate direct aortic arch anastomosis should entail a low risk of recurrent obstruction. LVOTO develops in many cases and may require further surgery.

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