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Hemostatic forceps used as a scissor-type knife in combination with the transanal-traction method for assisted endoscopic submucosal dissection in the area of the dentate line.

ABSTRACT:

SUBMITTER: Ramos-Zabala F

PROVIDER: S-EPMC7805017 | biostudies-literature |

REPOSITORIES: biostudies-literature

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Project description:BACKGROUND: Colorectal endoscopic submucosal dissection is technically demanding, and the traction offered by gravity, cap, or clip-with-line during conventional endoscopic submucosal dissection remains unsatisfactory. Robotic systems are still under development and are expensive. We proposed double-scope endoscopic submucosal dissection with strong and adjustable traction offered by snaring the lesion with additional scope. OBJECTIVE: This study aimed to test the novel double-scope endoscopic submucosal dissection with snare-based traction. DESIGN: This was a retrospective study that reviewed double-scope endoscopic submucosal dissection compared with matched conventional endoscopic submucosal dissection, and size, location, morphology, and pathology between groups were compared. SETTINGS: This study was conducted in a referral endoscopy center in a local hospital. PATIENTS: This study included patients with colorectal lesions receiving double-scope endoscopic submucosal dissection and matched conventional endoscopic submucosal dissection. MAIN OUTCOME MEASURES: The pathological completeness, procedure time, and complications were analyzed. RESULTS: Fifteen double-scope endoscopic submucosal dissection procedures, with 11 lesions located in the proximal colon with a median size of 40 mm, were performed. The median procedure time of double-scope endoscopic submucosal dissection was 32.45 (interquartile range, 16.03–38.20) minutes. The time required for second scope insertion was 2.57 (interquartile range, 0.95–6.75) minutes; for snaring, 3.03 (interquartile range, 2.12–6.62) minutes; and for actual endoscopic submucosal dissection, 28.23 (interquartile range, 7.90–37.00) minutes. All lesions were resected completely. No major complication was encountered. The procedure time was significantly shorter than that of 14 matched conventional endoscopic submucosal dissections (54.61 [interquartile range, 33.11–97.25] min; p = 0.021). LIMITATIONS: This was a single-center, single-operator, retrospective case-controlled study with limited cases. CONCLUSIONS: This study confirmed the feasibility of double-scope endoscopic submucosal dissection with snare-based traction to shorten procedure time and to simplify endoscopic submucosal dissection. Additional trials are required.

Dataset Information

Hemostatic forceps used as a scissor-type knife in combination with the transanal-traction method for assisted endoscopic submucosal dissection in the area of the dentate line.

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