A Retrospective Study of 290 Patients with Resectable Benign and Malignant Gastric Neoplasms to Compare Postoperative Outcomes of Endoscopic Resection with and without the Internal Traction Method Using a Spring-and-Loop with Clip (S-O Clip)

Yoichi Nakatsu; Makoto Furihata; Anna Fujiyama; Arisa Yuzawa; Mako Ushio; Shintaro Yano; Hiroki Okawa; Kumiko Noda; Shinjiro Nishi; Shingo Ogiwara; Tsuneo Kitamura; Naoto Sakamoto; Taro Osada

doi:10.12659/MSM.945341

22 August 2024 : Database Analysis

A Retrospective Study of 290 Patients with Resectable Benign and Malignant Gastric Neoplasms to Compare Postoperative Outcomes of Endoscopic Resection with and without the Internal Traction Method Using a Spring-and-Loop with Clip (S-O Clip)

Yoichi Nakatsu^1ABCDEF, Makoto Furihata^1ABCDEF*, Anna Fujiyama^1F, Arisa Yuzawa^1F, Mako Ushio^1F, Shintaro Yano^1B, Hiroki Okawa^1B, Kumiko Noda^1B, Shinjiro Nishi^1B, Shingo Ogiwara^1D, Tsuneo Kitamura^1D, Naoto Sakamoto^12ACDE, Taro Osada^1ABCDE

DOI: 10.12659/MSM.945341

Med Sci Monit 2024; 30:e945341

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Introduction Material and Methods Results S-O clip Device-Related Adverse Events Discussion Conclusions References

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Table 6 Subgroup analyses of procedure time between with or without S-O groups concerning disadvantageous variables for ESD.

	S-O group (n=93)	Control group (n=93)	P value
Endoscopists’ expertise
Expert (n=146)	42.9±26.1	66.5±4.2	0.0005^*
Trainee (n=40)	40.8±18.3	61.1±35.6	0.0378^*
Fibrosis in submucosal layer
Positive (n=41)	65.8±24.7	124.7±36.8	0.0018^*
Negative (n=145)	36.0±20.2	48.2±25.5	0.0007^*
Location of the neoplasms
U (n=39)	59.6±22.2	101.7±45.6	0.0016^*
M (n=46)	45.7±30.1	63.7±40.2	0.0832
L (n=101)	34.0±18.4	53.3±36.0	0.0008^*
Circumferential position of the neoplasms
Ant (n=24)	36.4±16.1	45.4±24.4	0.2917
Poss (n=34)	61.3±31.7	81.7±54.6	0.1811
Less (n=83)	44.7±21.2	70.2±43.1	0.0065^*
Gre (n=45)	26.6±12.8	56.4±37.3	<0.001^*
Data are shown a mean±standard deviation (mm). ESD – endoscopic submucosal dissection. Location of the neoplasms: U – upper one-third of the stomach; M – middle one-third; L – lower one-third. Circumferential position of the neoplasms: Ant – anterior wall of the stomach; Post – posterior wall; Less – lesser curvature; Gre – greater curvature. ^* values

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A Retrospective Study of 290 Patients with Resectable Benign and Malignant Gastric Neoplasms to Compare Postoperative Outcomes of Endoscopic Resection with and without the Internal Traction Method Using a Spring-and-Loop with Clip (S-O Clip)

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