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Proper muscle layer damage affects ulcer healing after gastric endoscopic submucosal dissection
Author(s) -
Horikawa Yohei,
Mimori Nobuya,
Mizutamari Hiroya,
Kato Yuhei,
Shimazu Kazuhiro,
Sawaguchi Masayuki,
Tawaraya Shin,
Igarashi Kimihiro,
Okubo Syunji
Publication year - 2015
Publication title -
digestive endoscopy
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.5
H-Index - 56
eISSN - 1443-1661
pISSN - 0915-5635
DOI - 10.1111/den.12501
Subject(s) - medicine , endoscopic submucosal dissection , fibrosis , muscular layer , gastroenterology , concomitant , wound healing , univariate analysis , surgery , retrospective cohort study , multivariate analysis
Background and Aim Endoscopic submucosal dissection (ESD) is the established therapy for superficial gastrointestinal neoplasms. However, management of the artificial ulcers associated with ESD has become important and the relationship between ulcer healing factors and treatment is still unclear. We aimed to evaluate ESD‐related artificial ulcer reduction ratio at 4 weeks to assess factors associating with ulcer healing after ESD that may lead to optimal treatment. Methods Between January 2009 and December 2013, a total of 375 lesions fulfilled the expanded criteria for ESD. We defined ulcer reduction rate <90% as (A) poor‐healing group; and rate ≥90% as (B) well‐healing group. After exclusion, 328 lesions were divided into two groups and analyzed. These two groups were compared based on clinicopathological/endoscopic features, concomitant drugs, and treatment. Results Ulcer reduction rate was significantly correlated with factors related to the ESD procedure (i.e. procedure time, submucosal fibrosis, and injury of the proper muscle layer, in univariate analysis. Multivariate logistic regression analysis showed that submucosal fibrosis (F2) ( P = 0.03; OR, 16.46; 95% CI, 1.31–206.73) and injury of the proper muscle layer ( P = 0.01; OR, 4.27; 95% CI, 2.04–8.92) were statistically significant predictors of delayed healing. Conclusion This single‐center retrospective study indicated that ESD‐induced artificial ulcer healing was affected by submucosal fibrosis and injury of the proper muscle layer, which induced damage to the muscle layer. Therefore, the preferable pharmacotherapy can be determined on completion of the ESD procedure.