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  • Title: Outcomes of Surgical Repair of Complex D-Transposition of the Great Arteries.
    Author: Olds A, Nakamura Y, Levasseur S, Shah A, Freud L, Chelliah A, Chai P, Quaegebeur J, Bacha E, Kalfa D.
    Journal: World J Pediatr Congenit Heart Surg; 2018 Nov; 9(6):605-612. PubMed ID: 30322365.
    Abstract:
    BACKGROUND: D-transposition of the great arteries (TGA) or TGA-type double outlet right ventricle (DORV) with ventricular septal defect (VSD) and left ventricular outflow tract obstruction (LVOTO) may be treated with the arterial switch operation (ASO), Rastelli, Réparation à l'Etage Ventriculaire (REV), or Nikaidoh procedures. We evaluated midterm results of these techniques. METHODS: We retrospectively reviewed 42 cases of anatomic repair from 2005 to 2014 at our institution for TGA (n = 29) or TGA-type DORV (n = 13) with VSD and LVOTO. We analyzed outcomes (mortality, reoperation, residual/recurrent LVOT peak gradient ≥20 mm Hg, right ventricular outflow tract [RVOT] peak gradient ≥40 mm Hg) and performed a risk analysis. Mean follow-up was 5.77 ± 3.08 years. RESULTS: Seventeen (40.5%) patients had an ASO with (n = 4) or without (n = 13) LVOTO resection. The Rastelli, REV, and Nikaidoh procedures were used in 14 (33%), 5 (12%), and 6 (14%) patients, respectively. There were no mortalities or moderate aortic insufficiency at last follow-up. Three (9%) patients developed LVOT gradient ≥20 mm Hg, while nine (21.4%) patients had RVOT obstruction. Reoperations included RVOT/pulmonary artery reoperation (n = 10; 23.8%) and LVOT reoperation (n = 1; 2.5%). Freedom from reoperation was 84% ± 6% and 75% ± 9% at one and three years, respectively, for the entire cohort with no differences between groups by type of operation (log-rank P = .64). The Nikaidoh procedure compared favorably to all other techniques in terms of reoperation (n = 0/6; 0% vs n = 13/36; 36%; P = .08). CONCLUSIONS: Midterm outcomes after anatomic repair for TGA or TGA-type DORV with LVOTO and VSD are excellent but vary by surgical technique. The Nikaidoh procedure seems to compare favorably to the other techniques.
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