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Endoscopy. 2009 Sep;41(9):751-7. doi: 10.1055/s-0029-1215053. Epub 2009 Aug 19.

Meta-analysis of endoscopic submucosal dissection versus endoscopic mucosal resection for tumors of the gastrointestinal tract.

Author information

1
Department of Colorectal and Anal Surgery, First Affiliated Hospital, Guangxi Medical University, Nanning, Guangxi, People's Republic of China.

Abstract

BACKGROUND AND STUDY AIMS:

Endoscopic submucosal dissection (ESD) has been developed to overcome the limitations of endoscopic mucosal resection (EMR). We aimed to compare the outcomes of these two methods.

METHODS:

Databases, including Pubmed, EMBASE, and The Cochrane Library, were searched to identify studies comparing ESD with EMR for premalignant and malignant lesions of the gastrointestinal tract. In a meta-analysis, primary end points were the en bloc resection rate and the curative resection rate; secondary end points were operation time, and rates of bleeding, perforation, and local recurrence.

RESULTS:

15 nonrandomized studies (seven full-text and eight abstracts) were identified. Meta-analysis showed higher en bloc and curative resection rates (odds ratio [OR] 13.87, 95 %CI 10.12 - 18.99; OR 3.53, 95 %CI 2.57 - 4.84) irrespective of lesion size. Subgroup analysis showed higher en bloc and curative resection rates with ESD for esophageal, gastric, and colorectal neoplasms, and for lesions of size < 10 mm, 10 mm < 20 mm, and > 20 mm. Local recurrence was lower with ESD (OR 0.09, 95 %CI 0.04 - 0.18). But ESD was more time-consuming than EMR (weighted mean difference [WMD] 1.76; 95 %CI 0.60 - 2.92), and showed high procedure-related bleeding and perforation rates (OR 2.20, 95 %CI 1.58 - 3.07; OR 4.09, 95 %CI 2.47 - 6.80).

CONCLUSIONS:

ESD showed better en bloc and curative resection rates and local recurrence compared with EMR, but was more time-consuming and had higher rates of bleeding and perforation complications. These results need to be confirmed by high quality trials and further studies in the west.

PMID:
19693750
DOI:
10.1055/s-0029-1215053
[Indexed for MEDLINE]

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