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DOI: 10.1055/s-0042-120707
Line-assisted complete closure of duodenal mucosal defects after underwater endoscopic mucosal resection
Corresponding author
Publication History
Publication Date:
09 January 2017 (online)
Duodenal endoscopic mucosal resection (EMR) carries a high risk of adverse events, including delayed perforation [1] [2]. Because complete clip closure of mucosal defects can reportedly prevent post-procedural adverse events in the colorectum, we established a line-assisted complete closure (LACC) technique for large mucosal defects after colonic endoscopic submucosal dissection [3]. LACC can be useful in the duodenum, but its feasibility is unknown. Therefore, we investigated the feasibility of LACC of mucosal defects after underwater EMR in the duodenum.
Eight patients with 20-mm or larger duodenal tumors underwent LACC of mucosal defects after underwater EMR ([Fig. 1]; [Video 1]). LACC was performed as follows [3]. First, a nylon line was tied to a clip (HX-610-090; Olympus, Tokyo, Japan) mounted on an applicator (HX-110LR; Olympus). The clip was then retracted into the applicator and inserted into the accessory channel. The clip-and-line system was placed on the normal mucosa at the proximal side of the defect ([Fig. 2 a]). Another clip (without a line) was used to anchor the line to the other side of the normal mucosa. Both clips were gathered together by gently pulling the line ([Fig. 2 b]). Additional clips were placed to achieve complete closure ([Fig. 2 c]). Finally, the line tied to the clip was cut using scissor forceps (FS-3L-1; Olympus) ([Fig. 2 d]).
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Quality:
![](https://www.thieme-connect.de/media/endoscopy/2017S01/thumbnails/10-1055-s-0042-120707-i14957cl2.jpg)
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Complete closure was achieved in seven patients (88 %) without adverse events; however, one 35-mm defect could not be closed completely, and delayed bleeding occurred. This patient was the first one to undergo duodenal LACC using a single clip-and-line system. We have recently used two or three clip-and-line systems to close large defects and have achieved complete closure [4].
Although an over-the-scope clip can reportedly be useful to prevent delayed perforations after duodenal EMR [5], high-end devices are required and the size is limited. LACC is simple, affordable, and seems feasible for large duodenal mucosal defects after underwater EMR.
Endoscopy_UCTN_Code_TTT_1AO_2AI
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Competing interests
None
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References
- 1 Inoue T, Uedo N, Yamashina T. et al. Delayed perforation: A hazardous complication of endoscopic resection for non-ampullary duodenal neoplasm. Dig Endosc 2014; 26: 220-227
- 2 Nonaka S, Oda I, Tada K. et al. Clinical outcome of endoscopic resection for nonampullary duodenal tumors. Endoscopy 2015; 47: 129-135
- 3 Kato M, Takeuchi Y, Yamasaki Y. Line-assisted complete closure of a large colorectal mucosal defect after endoscopic submucosal dissection. Dig Endosc 2016; 28: 686
- 4 Yamasaki Y, Takeuchi Y, Kato M. et al. Line-assisted complete closure of large gastric mucosal defects by use of multiple clip-and-line technique. VideoGIE. DOI: http://dx.doi.org/10.1016/j.vgie.2016.08.008
- 5 Mori H, Shintaro F, Kobara H. et al. Successful closing of duodenal ulcer after endoscopic submucosal dissection with over-the-scope clip to prevent delayed perforation. Dig Endosc 2013; 25: 459-461
Corresponding author
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References
- 1 Inoue T, Uedo N, Yamashina T. et al. Delayed perforation: A hazardous complication of endoscopic resection for non-ampullary duodenal neoplasm. Dig Endosc 2014; 26: 220-227
- 2 Nonaka S, Oda I, Tada K. et al. Clinical outcome of endoscopic resection for nonampullary duodenal tumors. Endoscopy 2015; 47: 129-135
- 3 Kato M, Takeuchi Y, Yamasaki Y. Line-assisted complete closure of a large colorectal mucosal defect after endoscopic submucosal dissection. Dig Endosc 2016; 28: 686
- 4 Yamasaki Y, Takeuchi Y, Kato M. et al. Line-assisted complete closure of large gastric mucosal defects by use of multiple clip-and-line technique. VideoGIE. DOI: http://dx.doi.org/10.1016/j.vgie.2016.08.008
- 5 Mori H, Shintaro F, Kobara H. et al. Successful closing of duodenal ulcer after endoscopic submucosal dissection with over-the-scope clip to prevent delayed perforation. Dig Endosc 2013; 25: 459-461
![](https://www.thieme-connect.de/media/endoscopy/2017S01/thumbnails/10-1055-s-0042-120707-i14957cl1.jpg)
![Zoom Image](/products/assets/desktop/css/img/icon-figure-zoom.png)
![](https://www.thieme-connect.de/media/endoscopy/2017S01/thumbnails/10-1055-s-0042-120707-i14957cl2.jpg)
![Zoom Image](/products/assets/desktop/css/img/icon-figure-zoom.png)