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Comparative Study
, 41 (3), 201-9

Clinical Outcomes of Endoscopic Submucosal Dissection (ESD) for Treating Early Gastric Cancer: Comparison With Endoscopic Mucosal Resection After Circumferential Precutting (EMR-P)

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Comparative Study

Clinical Outcomes of Endoscopic Submucosal Dissection (ESD) for Treating Early Gastric Cancer: Comparison With Endoscopic Mucosal Resection After Circumferential Precutting (EMR-P)

B-H Min et al. Dig Liver Dis.

Abstract

Background: To achieve en bloc resection for large lesions, endoscopic mucosal resection after circumferential precutting and endoscopic submucosal dissection techniques have been developed.

Aim: To compare endoscopic submucosal dissection with endoscopic mucosal resection after circumferential precutting in terms of the clinical efficacy and safety.

Patients and methods: 346 consecutive patients underwent their first endoscopic mucosal resection after circumferential precutting (103 patients) or endoscopic submucosal dissection (243 patients) for early gastric cancer and their clinical outcomes were compared.

Results: For early gastric cancer >or=20mm endoscopic submucosal dissection group demonstrated significantly higher en bloc resection and en bloc plus R0 resection rate compared with endoscopic mucosal resection after circumferential precutting group. For early gastric cancer with size of 10-19 mm, endoscopic submucosal dissection group also showed significantly higher en bloc resection rate. For early gastric cancer <20mm, however, en bloc plus R0 resection rate for endoscopic mucosal resection after circumferential precutting group was comparable to that for endoscopic submucosal dissection group. In case of R0 resection of intramucosal differentiated cancer, neither group showed local recurrence during the median 29 and 17 months of follow-up. Two groups did not show significant difference in the bleeding or perforation rates.

Conclusion: For early gastric cancer <20mm endoscopic mucosal resection after circumferential precutting may be considered as an alternative choice to endoscopic submucosal dissection. However, for early gastric cancer >or=20mm endoscopic submucosal dissection should be considered as the first choice for treating early gastric cancer.

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