Anastomotic Stricture Definition After Esophageal Atresia Repair: Role of Endoscopic Stricture Index.

Abstract Background To evaluate the feasibility and efficacy of endoscopic stricture index (SIEN) to define anastomotic strictures (ASs) and to predict the need of dilatations. Materials and methods A retrospective longitudinal study was conducted on patients who underwent esophageal atresia repair from 1998-2020 (ethical committee approval CHPED-05-20-AS). SIEN was calculated on the first endoscopy performed as follows: (D − d)/D, where D is the maximum diameter of lumen of the upper esophagus close to the AS and d is the diameter of lumen of the stricture. Nonparametric variables were examined using Wilcoxon-Mann-Whitney test, and continuous variables were analyzed using Spearman's test and regression analysis. A P value Results A total of 46 patients were included in the study. A statistically significant correlation was found between SIEN and number of dilations (Spearman's correlation rate, 0.7; P  Conclusions SIEN seems to be a good AS definer and prognostic tool; our study suggests that an AS could be defined by a SIEN ≥0.6.