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Medicine (Baltimore). 2015 Sep;94(39):e1664. doi: 10.1097/MD.0000000000001664.

Steroid Administration is Effective to Prevent Strictures After Endoscopic Esophageal Submucosal Dissection: A Network Meta-Analysis.

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From the Department of Emergency, The First Hospital of Lanzhou University, Lanzhou, China (WWJ); Department of Geriatric Medicine, The First Hospital of Lanzhou University, Lanzhou, China (MZY); and Center of Evidence-based Medicine, Lanzhou University First Hospital, Lanzhou, China (MZY).


Esophageal stricture is a severe adverse event after circumferential endoscopic submucosal dissection (ESD). Steroid administration is a new method to prevent stricture formation. We performed a meta-analysis to investigate the efficacy and safety of steroid administration to prevent esophageal stricture after circumferential ESD. PubMed, the Cochrane Library, EMBASE, Chinese Biomedical Database, and were searched. Studies on steroid administration + endoscopic balloon dilation (EBD) versus EBD alone for esophageal stricture were included and pooled analyzed in random-effects models. Besides, subgroup analysis and network analysis were performed to define the influence of ESD type and steroid administration method. Twelve studies involving 513 patients were included. Meta-analysis showed that steroid administration significantly achieved a lower stricture rate (risk ratio [RR], 0.40; 95% CI, 0.20-0.81) and less required EBD sessions (mean difference [MD], -4.33; 95% CI, -6.10 to -2.57) than control. Subgroup analysis indicated that steroid was effective after both semi- and complete circumferential ESD. Network meta-analysis showed that compared with oral steroid, local injected steroid had a similar effect to prevent stricture (RR, 1.16; 95% CI, 0.48-2.85), whereas a better effect to reduce required EBD sessions (MD, 7.77; 95%CI, 0.26-15.3). Additional steroid administration is effective to reduce the stricture rate and required EBD sessions. And local injected steroid was superior to oral steroid in EBD reduction, whereas due to the varied method and dose of steroid administration, the finding needs to be clarified in the future.

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