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Management of patients with pulmonary atresia, ventricular septal defect, hypoplastic pulmonary arteries and major aorto-pulmonary collaterals: Focus on the strategy of rehabilitation of the native pulmonary arteries.

Fouilloux, Virginie; Bonello, Béatrice; Kammache, Issam; Fraisse, Alain; Macé, Loïc; Kreitmann, Bernard.
Arch Cardiovasc Dis; 105(12): 666-75, 2012 Dec.
Artigo em Inglês | MEDLINE | ID: mdl-23199622
Pulmonary atresia with ventricular septal defect (VSD), hypoplastic native pulmonary arteries (PAs) and major aorto-pulmonary collateral arteries (MAPCAs) is a rare and complex congenital cardiac disease. In broad outline, two surgical approaches are available for patients with this condition. The first is characterized by one or several stages of complete unifocalization of the supplying MAPCAs, with or without incorporation of the native pulmonary arteries (PAs), connection of the right ventricle to the 'neo-Pas' and, if possible, concomitant or delayed closure of the VSD. The second strategy is based on rehabilitation of the native pulmonary arteries. The first step is a direct right ventricle to native PA connection, to promote the growth of native PAs. The establishment of antegrade flow also allows an easier approach for interventional catheterization, enabling dilatation or stenting of the stenosis and then closure of the communicant collaterals. When the development of the native PAs is satisfactory, the complete repair is performed. If it is necessary to suture a MAPCA to the PA ('unifocalization'), this is accomplished by connecting the collateral artery to an already developed native branch. Our team developed this multidisciplinary strategy with good results. Based on this experience as well as on the published literature, we describe this strategy of management of patients with pulmonary atresia, VSD, hypoplastic pulmonary arteries and major aorto-pulmonary collaterals (MAPCAs).
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