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Eur J Cardiothorac Surg 2001;19:671-677
© 2001 Elsevier Science NL

Single ventricle with systemic obstruction in early life: comparison of initial pulmonary artery banding versus the Norwood operation

^a The Division of Cardiovascular Surgery, The Montreal Children's Hospital, McGill University Health Center, Montreal, Quebec, Canada
^b The Division of Cardiology, The Montreal Children's Hospital, McGill University Health Center, Montreal, Quebec, Canada
^c The Division of Epidemiology, The Montreal Children's Hospital, McGill University Health Center, Montreal, Quebec, Canada

Received 9 October 2000; received in revised form 2 March 2001; accepted 2 March 2001.

Corresponding author. Tel.: +1-514-934-4400, ext. 2394; fax: +1-514-934-4330
e-mail: christo.tchervenkov{at}muhc.mcgill.ca

Objectives: The outcomes of initial pulmonary artery banding (PAB)±coarctation repair are compared with the Norwood operation in newborns with single ventricle (SV) and systemic obstruction (SO). Methods: Between January 1987 and July 2000, 22 patients (median age, 12 days) with SV and aortic arch obstruction (AAO), subaortic stenosis (SAS), or both underwent surgery. Two initial surgical approaches were used: PAB±coarctation repair (group I, seven patients); Norwood type operation (group II, 15 patients). Results: The overall mortality was 32% (seven of 22 patients). There was no late mortality. The mortality in group I was 43% versus 27% in group II. Recently, there has been no mortality following the Norwood operation in the last eight patients operated since 1995. Of the survivors, nine patients have undergone the Fontan operation and four patients have had the bidirectional Glenn (BDG) with no deaths. There was one repair of supravalvar aortic stenosis at the time of BDG in group II as opposed to eight reinterventions for SAS and/or AAO in four patients in group I (P=0.01). Conclusions: PAB±coarctation repair for SV and SO is associated with a high mortality and a high reoperation rate for SAS or recurrent AAO. Although the Norwood operation was also associated with a high mortality early on, it can now be performed with excellent outcome. This improvement, combined with a low reintervention rate for SAS or AAO, suggests that the Norwood operation is likely to emerge as the procedure of choice for SV and SO.

Key Words: Single ventricle • Systemic obstruction • Aortic arch obstruction • Norwood operation • Pulmonary artery banding

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