Comparison of a portable disposable large-channel gastroscope and a conventional reusable gastroscope in gastric endoscopic submucosal dissection

doi:10.4240/wjgs.v17.i7.105503

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Jul 27, 2025 (publication date) through Jul 29, 2025

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World Journal of Gastrointestinal Surgery

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1948-9366

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Baishideng Publishing Group Inc, 7041 Koll Center Parkway, Suite 160, Pleasanton, CA 94566, USA

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World J Gastrointest Surg. Jul 27, 2025; 17(7): 105503
Published online Jul 27, 2025. doi: 10.4240/wjgs.v17.i7.105503

Table 3 Comparison of the performance between portable disposable large-channel gastroscope (experimental group) and reusable gastroscopes (control group) in endoscopic submucosal dissection, median (25^th-75^th percentiles)

	Experimental group	Control group	P value
En bloc resection rate (%, n/n)	100% (20/20)	100% (20/20)	-
Submucosal dissection time (minutes)	9.92 (8.19, 16.30)	11.21 (9.06, 13.25)	0.864
Total procedure time of endoscopic submucosal dissection, minutes	18.00 (12.11, 23.80)	17.99 (14.82, 20.51)	0.938
Total submucosal injection volume (mL)	20.50 (11.50, 39.00)	20.50 (14.00, 23.00)	0.767
Specimen size, mm	20.35 (16.45, 24.43)	18.72 (17.04, 21.12)	0.501
Muscle layer injury	-	-	-
Complications	-	-	-

Citation: Zhao CY, Ning B, Feng XX, Li HK, Zhang WG, Dong H, Chai NL, Linghu EQ. Comparison of a portable disposable large-channel gastroscope and a conventional reusable gastroscope in gastric endoscopic submucosal dissection. World J Gastrointest Surg 2025; 17(7): 105503
URL: https://www.wjgnet.com/1948-9366/full/v17/i7/105503.htm
DOI: https://dx.doi.org/10.4240/wjgs.v17.i7.105503