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Rubber band-assisted closure of a mucosal defect following duodenal EMR

ABSTRACT: Video Video 1 Rubber band–assisted closure of a mucosal defect after duodenal EMR.

SUBMITTER: Al Ghamdi S

PROVIDER: S-EPMC8573376 | biostudies-literature |

REPOSITORIES: biostudies-literature

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Mucosal defect closure after duodenal endoscopic submucosal dissection using the reopenable-clip over the line method.

Project description:IntroductionClosure of mucosal defects after duodenal endoscopic submucosal dissection (ESD) is important to prevent postoperative adverse events. Previously, we devised an underwater reopenable-clip closure method for effective closure of mucosal defects under endoscopic guidance within the field of view. Recently, the usefulness of a method using a clip with a line passing through an accessory channel to close a mucosal defect has been reported. We also described a reopenable-clip over the line method (ROLM) to completely close margin and the muscular layers of mucosal defects using a clip line.Case reportOur patient was a 70-year-old woman with a 40-mm duodenal tumor in the descending portion of the duodenum. The lesion was completely resected using ESD . In the result, the mucosal defect size was approximately 50 mm, representing about 3/4 of the duodenal circumference. A clip-line closure was performed using ROLM to close the mucosal defect's margins completely. An additional clip was applied to close the mucosal defect after ESD completely. Subsequently, the line was fixed with a modified locking-clip technique, closed, and cut with endoscopic scissors. The patient was discharged without any adverse events 9 days after the duodenal ESD.DiscussionMucosal defect closure after duodenal ESD using ROLM is a novel method that can reliably close mucosal defects.

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Gel Immersion Endoscopic Mucosal Resection (EMR) for Superficial Nonampullary Duodenal Epithelial Tumors May Reduce Procedure Time Compared with Underwater EMR (with Video)

Project description:Materials and Methods This was a retrospective cohort study conducted in two municipal hospitals. We identified 24 patients with SNADETs of 3–18 mm in diameter who underwent UEMR or GIEMR. One lesion was excluded from the analysis because it was found to be in the stomach after surgery. The primary outcome was procedure time. Results GIEMR significantly reduced the procedure time compared with UEMR (5 min vs. 10 min, P = 0.016). There was no significant difference between the UEMR and GIEMR groups for en bloc resection rate (93% vs. 100%, P = 1.0) and R0 resection rate (57% vs. 80%, P = 0.39). No serious complications were observed in either group. Conclusions GIEMR of SNADET has the potential to reduce procedure time compared with UEMR and may be particularly effective in areas where immersion in water is difficult.

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Underwater reopenable clip closure of mucosal defects after duodenal endoscopic submucosal dissection.

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A novel, simple, and dedicated device for endoscopic mucosal defect closure.

Project description:ObjectivesEndoscopic submucosal dissection (ESD) has become popular, but complications such as postoperative bleeding remain an issue. Although some methods of closing a mucosal defect with a snare and clips have been reported to be effective and safe, the snare is not a dedicated device, and the procedure is difficult and time-consuming. We aimed to find an alternative method for defect closure after ESD by developing a dedicated device.MethodsWe have improved five prototypes. The load on the stopper when starting to tighten and loosen a loop and the maximum load on the stopper and the movement distance of the thread when sliding the stopper were measured five times for each prototype. With the 5th prototype, we finalized the design and named it FLEXLOOP. Additionally, the material and shape of the outer tube were improved. Then, the usability of FLEXLOOP was evaluated in pigs. The operation time for closing mucosal defects with the snare or FLEXLOOP was measured five times.ResultsWe made FLEXLOOP, which had a lower load when sliding and a higher load when loosening than the snare. The improvement of the outer tube significantly reduced the load on the sheath when sliding it. We confirmed the feasibility of mucosal defect closure with FLEXLOOP in pigs. The median operation time was 563 s (range 340-679 s) with the snare and 355 s (range 303-455 s) with FLEXLOOP (p = 0.047).ConclusionsFLEXLOOP can be a promising option for defect closure after ESD.

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