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  • Title: Contemporary Outcomes After Pulmonary Artery Banding in Complete Atrioventricular Septal Defect.
    Author: Kim MJ, Cha S, Baek JS, Yu JJ, Kim DH, Choi ES, Kwon BS, Yun TJ, Park CS.
    Journal: Ann Thorac Surg; 2022 Dec; 114(6):2356-2362. PubMed ID: 35405104.
    Abstract:
    BACKGROUND: This study investigated the clinical outcomes and the effect of band tightness on outcome after pulmonary artery banding (PAB) in patients with complete atrioventricular septal defect (AVSD). METHODS: From 2000 through 2019, among 133 patients with isolated complete AVSD pursuing biventricular repair, 34 patients (25.6%) who underwent PAB were included in this study. Factors associated with adverse outcome, which was defined as prolonged stay in the intensive care unit (>10 days), were analyzed using a multiple logistic regression model. Receiver operating characteristic analysis was performed to identify a threshold band tightness for adverse outcome. RESULTS: The median age and weight were 43 days and 3.6 kg, respectively. There were 4 early deaths. The median intensive care unit stay was 8 days. Twenty-eight patients (28/34; 82.4%) underwent definitive repair 10 months (interquartile range, 7-12 months) after PAB. In multivariable analysis, indexed band diameter was identified as a factor associated with adverse outcome (odds ratio, 1.60; 95% CI, 1.03-2.48; P = .035). Receiver operating characteristic analysis indicated 22.2 mm/m2 of indexed PAB diameter measured at discharge as a threshold band tightness for adverse outcome (area under curve, 0.871; P < .001). The level of B-type natriuretic peptide similarly decreased after PAB regardless of band tightness, although the probability of worsening in atrioventricular valve regurgitation was significantly decreased in patients with a tighter band (P = .027). CONCLUSIONS: PAB is a viable option for early-presenting patients with complete AVSD. Tighter PAB might be beneficial for early postoperative outcomes and preventing progression of atrioventricular valve regurgitation in complete AVSD.
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