نبذة مختصرة : our aim was to comparatively assess the treatment outcomes of endoscopic dilatation in Barrett's neoplasia and squamous cell carcinoma (SCC) post-endoscopic submucosal dissection (ESD) strictures, and to determine the risk or factors associated to refractory strictures. an observational study. All consecutive patients presenting with a post-ESD stricture in 2007-2016 who underwent dilation therapy were included. Clinical, morphological, and technical features were assessed to determine the risk factors of refractory strictures. of 414 consecutive patients treated by ESD, 83 (mean age: 65 ± 10 years, 76 % men) with 254 dilations (median: 3, range: 1-27) were considered. Barrett's neoplasia and SCC were the indications in 58 (69.9 %) and in 25 (30.1 %) cases, respectively. Clinical success was achieved in 84.3 % with a median of 3 sessions (range: 1-22), with a higher rate in Barrett's neoplasia (89.7 % vs. 72 %, p = 0.042). Circumferential resection in one single procedure (13.2 %) was associated with the need for a higher number of dilation sessions. By multivariate analysis, upper-esophageal location (OR: 11.479 [95 % CI: 2.058-64.043], p = 0.005), recurrent strictures (OR: 17.252 [95 % CI: 2.833-105.069], p = 0.002), and dilation-related complications (OR: 26.420 [95 % CI: 1.736-401.966], p = 0.018) were risk factors of refractory stenosis. patients presenting with SCC located in the upper superior esophagus, intra-procedural perforation, and recurrent strictures are at higher risk of developing refractory strictures.
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