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  • Title: Predictors for Submucosal Fibrosis in Patients With Superficial Squamous Esophageal Neoplasia Undergoing Endoscopic Submucosal Dissection.
    Author: Zhuang X, Xu M, Chen Z, Wang J, Qian K, Wang S, Deng G, Bai Y.
    Journal: Clin Transl Gastroenterol; 2020 Aug; 11(8):e00188. PubMed ID: 32955196.
    Abstract:
    INTRODUCTION: Submucosal fibrosis greatly hinders the success of endoscopic submucosal dissection (ESD). This study determined ESD outcomes in patients with esophageal submucosal fibrosis and further explored the predictors. METHODS: We retrospectively analyzed 163 patients with superficial squamous esophageal neoplasia. The degree of submucosal fibrosis was classified as follows: F0, none; F1, mild; and F2, severe. ESD outcomes as a function of the degree of submucosal fibrosis and biopsy were determined. The potential predictors of submucosal fibrosis were analyzed. RESULTS: En bloc resection, R0 resection, and procedure time were significantly different between the F0-F2 groups (P = 0.009, P = 0.002, and P < 0.001, respectively). Perforation and immediate bleeding rates of F2 were significantly higher than the F0/F1 groups (P < 0.001 and P < 0.001, respectively). However, the nonbiopsy group vs the biopsy group and the delayed ESD group (postbiopsy >21 days) vs the early ESD group (postbiopsy ≤21 days) showed no statistical differences regarding the en bloc resection, R0 resection, and ESD complications (all P > 0.05). Further analysis indicated that it was not the biopsy history and delayed ESD (both P > 0.05), rather submucosal invasion vs intramucosal tumor (odds ratio = 4.534, P = 0.003) and current smoker vs nonsmoker (odds ratio = 2.145, P = 0.043) were independent risk factors for endoscopic submucosal fibrosis. DISCUSSION: Esophageal submucosal fibrosis was shown to be closely related to unsatisfactory ESD outcomes. Biopsy history and delayed ESD had no adverse effect on submucosal fibrosis and ESD outcomes. Submucosal invasion and current cigarette smoking were predictors of submucosal fibrosis.
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