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Endoscopic suturing promotes healing of mucosal defects after gastric endoscopic submucosal dissection: endoscopic and histologic analyses in in vivo porcine models (with video).
Gastrointestinal Endoscopy ( IF 7.7 ) Pub Date : 2020-01-03 , DOI: 10.1016/j.gie.2019.12.032
Teppei Akimoto 1 , Osamu Goto 1 , Motoki Sasaki 2 , Mari Mizutani 2 , Koshiro Tsutsumi 2 , Yoshiyuki Kiguchi 2 , Atsushi Nakayama 2 , Motohiko Kato 2 , Ai Fujimoto 2 , Yasutoshi Ochiai 2 , Tadateru Maehata 2 , Mitsuru Kaise 3 , Katsuhiko Iwakiri 3 , Naohisa Yahagi 2
Affiliation  

BACKGROUND AND AIMS Endoscopic suturing of mucosal defects after endoscopic submucosal dissection (ESD) is expected to prevent postoperative adverse events. We aimed to endoscopically and histologically evaluate the healing process of post-ESD mucosal defects closed with endoscopic hand suturing (EHS) in in vivo porcine models. METHODS Twelve mucosal defects (2 cm in size) were created in 2 pigs (6 defects per pig). Initially, 2 defects were created: one was closed with EHS (sutured group) and the other was kept open (control group). On postoperative days (PODs) 7 and 14, 2 additional defects were created in each session, and they were treated in the same manner as in the initial procedure. On POD 21, the entire stomach, with the 6 lesion sites, was extracted for histologic evaluation after endoscopic observation. RESULTS Endoscopically, all sutured sites remained closed in all sessions (PODs 7, 14, and 21). Histologically, on POD 14, the epithelium and muscularis mucosae were appropriately connected. The mucosae were covered with the epithelium without inversion of the mucosal edge in the sutured group, whereas the ulcer bed was exposed in the control group. Furthermore, the degree of neovascularity and fibroblasts in the submucosa was smaller in the sutured group than that in the control group. CONCLUSIONS Our findings suggest that endoscopic suturing promotes healing of post-ESD mucosal defects histologically in in vivo porcine models. Thus, endoscopic mucosal closure after ESD might be clinically useful for the prevention of delayed perforation/bleeding if secure suturing is performed endoscopically.

中文翻译:

内窥镜缝合促进胃内窥镜黏膜下剥离术后黏膜缺损的愈合:猪体内模型的内窥镜和组织学分析(附视频)。

背景和目的 内镜黏膜下剥离术(ESD)后黏膜缺损的内镜缝合有望预防术后不良事件。我们旨在通过内窥镜和组织学评估在体内猪模型中用内窥镜手缝合 (EHS) 闭合的 ESD 后黏膜缺损的愈合过程。方法 在 2 头猪(每头猪 6 个缺陷)中产生 12 个黏膜缺损(2 cm 大小)。最初,产生了 2 个缺陷:一个用 EHS 封闭(缝合组),另一个保持开放(对照组)。在术后第 7 天和第 14 天(POD),每次治疗都会产生 2 个额外的缺陷,并以与初始程序相同的方式进行处理。在 POD 21 内镜观察后,取出整个胃和 6 个病变部位进行组织学评估。结果 内窥镜下,所有缝合部位在所有会话中保持关闭(POD 7、14 和 21)。组织学上,在POD 14,上皮和粘膜肌层适当连接。缝合组黏膜被上皮覆盖,黏膜边缘不倒置,而对照组溃疡床暴露。此外,缝合组黏膜下层新生血管和成纤维细胞的程度小于对照组。结论 我们的研究结果表明,在猪体内模型中,内窥镜缝合在组织学上促进了 ESD 后黏膜缺损的愈合。因此,如果内镜下进行安全缝合,ESD 后的内镜下黏膜闭合可能在临床上可用于预防延迟穿孔/出血。组织学上,在POD 14,上皮和粘膜肌层适当连接。缝合组黏膜被上皮覆盖,黏膜边缘不倒置,而对照组溃疡床暴露。此外,缝合组黏膜下层新生血管和成纤维细胞的程度小于对照组。结论 我们的研究结果表明,在猪体内模型中,内窥镜缝合在组织学上促进了 ESD 后黏膜缺损的愈合。因此,如果内镜下进行安全缝合,ESD 后的内镜下黏膜闭合可能在临床上可用于预防延迟穿孔/出血。组织学上,在POD 14,上皮和粘膜肌层适当连接。缝合组黏膜被上皮覆盖,黏膜边缘不倒置,而对照组溃疡床暴露。此外,缝合组黏膜下层新生血管和成纤维细胞的程度小于对照组。结论 我们的研究结果表明,在猪体内模型中,内窥镜缝合在组织学上促进了 ESD 后黏膜缺损的愈合。因此,如果内镜下进行安全缝合,ESD 后的内镜下黏膜闭合可能在临床上可用于预防延迟穿孔/出血。缝合组黏膜被上皮覆盖,黏膜边缘不倒置,而对照组溃疡床暴露。此外,缝合组黏膜下层新生血管和成纤维细胞的程度小于对照组。结论 我们的研究结果表明,在猪体内模型中,内窥镜缝合在组织学上促进了 ESD 后黏膜缺损的愈合。因此,如果内镜下进行安全缝合,ESD 后的内镜下黏膜闭合可能在临床上可用于预防延迟穿孔/出血。缝合组黏膜被上皮覆盖,黏膜边缘不倒置,而对照组溃疡床暴露。此外,缝合组黏膜下层新生血管和成纤维细胞的程度小于对照组。结论 我们的研究结果表明,在猪体内模型中,内窥镜缝合在组织学上促进了 ESD 后黏膜缺损的愈合。因此,如果内镜下进行安全缝合,ESD 后的内镜下黏膜闭合可能在临床上可用于预防延迟穿孔/出血。结论 我们的研究结果表明,在猪体内模型中,内窥镜缝合在组织学上促进了 ESD 后黏膜缺损的愈合。因此,如果内镜下进行安全缝合,ESD 后的内镜下黏膜闭合可能在临床上可用于预防延迟穿孔/出血。结论 我们的研究结果表明,在猪体内模型中,内窥镜缝合在组织学上促进了 ESD 后黏膜缺损的愈合。因此,如果内镜下进行安全缝合,ESD 后的内镜下黏膜闭合可能在临床上可用于预防延迟穿孔/出血。
更新日期:2020-01-03
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