Abstract
The last three decades have seen considerable development in the management of infants with pulmonary atresia, ventricular septal defect, and major aorto-pulmonary collaterals. The technical difficulty of surgical treatment lies in the fashioning of a pulmonary vascular bed capable of providing suitably low right ventricular pressure for repair of the intracardiac defect. With the current trend toward early and complete unifocalization of major aortopulmonary collateral arteries (mapcas), we describe an alternative approach - "repair without unifocalization" - and explain our reasoning for pursuing this technique.
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