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Fluoroscopic balloon dilation of esophageal atresia anastomotic strictures in children and young adults: single-center study of 103 consecutive patients from 1999 to 2011.

Radiology 2014 May
PURPOSE: To determine whether fluoroscopic balloon dilation (FBD) is a safe and effective method of treating esophageal anastomotic stricture after surgical repair in an unselected patient population.

MATERIALS AND METHODS: With ethics committee approval, records for 103 consecutive patients who underwent FBD with our interventional radiology service (1999-2011) were reviewed retrospectively. Patients underwent diagnostic contrast material-enhanced study prior to the first dilation. Dilations were performed by using general anesthesia. Outcomes were number and/or frequency of dilations, clinical effectiveness and response to dilations, esophageal perforation, requirement for surgery, and mortality. Data were expressed as mean ± standard deviation (with range). Comparisons were conducted by using the Fisher exact test and log-rank test. The significance level was set at P < .05.

RESULTS: One hundred three patients (61 male patients, 59%) underwent 378 FBD sessions (median, two dilations per patient; range, 1-40 dilations). The median age at first FBD was 2.2 years (range, 0.1-19.5 years). The balloon catheter diameters ranged from 4 to 20 mm. FBD was successful in 93 patients (90%): 44 (47%) after single dilation and 49 (53%) after multiple dilations. There was no difference in the proportion of patients who required one dilation and were younger than 1 year versus those who were 1 year of age and older (P > .99; odds ratio, 1.07 [range, 0.43-2.66]). Ten patients (10%) required further procedures: Three underwent stent placement, three underwent esophageal stricture resection, and four underwent esophageal reconstruction. Four esophageal perforations (1%) developed after FBD. Antireflux surgery was performed in 18 patients (17%). There were no deaths.

CONCLUSION: FBD for anastomotic strictures after esophageal atresia repair is feasible and acceptably safe and provides relief of symptoms in most patients (90%); however, about half require more than one dilation, and surgery is best predicted if more than 10 dilations are required.

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