关键词: 食管尖锐异物, 透明帽, 有效性, 安全性

Abstract: Objective To explore the efficacy and safety of transparent cap in sharp foreign body removal and summarize experience. Methods 124 cases of esophageal sharp foreign body were retrospectively analyzed in Endoscopic Center of our hospital from January 2015 to January 2017. Of 124 cases，76 were males and 48 females，aged 16- 82 years. All patients wereimplemented endoscopic removal of sharp foreign bodies impacted in the esophagus，in which 70 cases were performed operation by transparent cap- assisted procedure（transparent cap group），54 cases were under non- transparent cap assisted group. The visual field clarity，time of foreign body removal，success rate，mucosal injury rate， complications of bleeding and perforation were recorded and analyzed. Results The mean time of transparent cap group was 234.14 ± 67.38 s，and 337.11 ± 116.61 s of the non- transparent group（P<0.05）. The success rate and visual field clarity rate of the transparent cap group were better than those of the non-transparent cap group，and the difference was statistically significant（P<0.05）. The rate of mucosal injury and the incidence of complications in transparent cap assisted group were significantly lower than those in the non-transparent caps group，with statistical difference（P<0.05）. Conclusion The procedure of transparent cap-assisted endoscopy for removal of esophageal sharp foreign bodies showed shorten the operation time，had higher success rate and visual field clarity，reduce the mucosal damage and complications.

Key words: transparent cap, esophageal sharp foreign body, efficacy, safety