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  • Title: Repair of congenital heart defects associated with single pulmonary artery.
    Author: Bockeria LA, Makhachev OA, Khiriev TKh, Podzolkov VP, Zelenikin MA, Kim AI, Zaets SB.
    Journal: Asian Cardiovasc Thorac Ann; 2015 Feb; 23(2):157-63. PubMed ID: 24855279.
    Abstract:
    BACKGROUND: Experience with complete repair of congenital heart defects associated with unilateral absence of a pulmonary artery is limited. The aim of this retrospective study was to present our surgical experience of this complex category of patients, to analyze immediate results of surgical interventions, and to suggest a rational surgical strategy. METHODS: Of 37 patients with a single pulmonary artery who underwent complete repair of associated heart defects, the left or right pulmonary artery was absent in 32 and 5, respectively. The most frequent heart defects were tetralogy of Fallot (n = 25) and ventricular septal defect (n = 8). The median age of these patients was 7.1 years. Preoperative examinations included echocardiography, cardiac catheterization and angiocardiography, with quantitative assessment of the single pulmonary artery. In-hospital parameters of surgical outcome were analyzed. RESULTS: Recorded hospital mortality was 2.7% (1/37). The single death was in a patient with tetralogy of Fallot, agenesis of the left pulmonary artery, and a small diameter of the contralateral pulmonary artery (Nakata index 174 mm(2)·m(-2)). The right-to-left ventricular systolic pressure ratio after complete tetralogy of Fallot repair in patients who survived the operation was 0.58 ± 0.11. CONCLUSIONS: Complete repair of congenital heart defects in patients with unilateral absence of a pulmonary artery is associated with a relatively low risk. If the hilar artery is of adequate size, surgical intervention should attempt restoration of the communication between the disconnected hilar artery and the pulmonary trunk, in addition to repairing the heart defects.
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