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Published in: Journal of Gastroenterology 3/2011

01-03-2011 | Original Article—Alimentary Tract

Endoscopic submucosal dissection as a treatment for gastric noninvasive neoplasia: a multicenter study by Osaka University ESD Study Group

Authors: Motohiko Kato, Tsutomu Nishida, Shusaku Tsutsui, Masato Komori, Tomoki Michida, Katsumi Yamamoto, Naoki Kawai, Shinji Kitamura, Shinichiro Zushi, Akihiro Nishihara, Fumihiko Nakanishi, Kazuo Kinoshita, Takuya Yamada, Hideki Iijima, Masahiko Tsujii, Norio Hayashi

Published in: Journal of Gastroenterology | Issue 3/2011

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Abstract

Background

Treatment with endoscopic submucosal dissection (ESD) for gastric noninvasive neoplasia (NIN) diagnosed by endoscopic forceps biopsy specimen, whether as a follow-up or “total incisional biopsy”, is controversial. To validate the use of ESD for total incisional biopsy in NIN, we examined the underdiagnosis rate of NIN and the rates of complication associated with ESD.

Methods

This is a cross-sectional multicenter retrospective study from 10 hospitals. Subjects diagnosed with NIN (equivalent to category 3 or 4.1 of the Vienna classification) by endoscopic forceps biopsy and treated with ESD were included. From March 2003 to December 2009, a total of 468 subjects were included and analyzed. The underdiagnosis rate was defined as the proportion of lesions diagnosed with adenocarcinoma after ESD. We assessed the complete en-bloc resection rate and the complication rate of ESD.

Results

Among the 468 subjects with NIN, 205 were diagnosed with adenocarcinoma after ESD, with an underdiagnosis rate of 44% (95% confidence interval: 39–49%). Two submucosal cancer lesions had invaded beyond 500 μm and one had lymphatic involvement. The complete en-bloc resection rate was 97%. The incidences of post-ESD bleeding, perforation, and serious complications were 5.5, 4.7, and 0.43%, respectively. There were no procedure-related deaths.

Conclusions

In this large-scale, multicenter cross-sectional study, over 40% of the noninvasive gastric neoplasia specimens were determined to have adenocarcinoma, and the ESD-related complication rate was relatively low. Therefore, ESD was useful and may be a therapeutic option for gastric NIN.
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Metadata
Title
Endoscopic submucosal dissection as a treatment for gastric noninvasive neoplasia: a multicenter study by Osaka University ESD Study Group
Authors
Motohiko Kato
Tsutomu Nishida
Shusaku Tsutsui
Masato Komori
Tomoki Michida
Katsumi Yamamoto
Naoki Kawai
Shinji Kitamura
Shinichiro Zushi
Akihiro Nishihara
Fumihiko Nakanishi
Kazuo Kinoshita
Takuya Yamada
Hideki Iijima
Masahiko Tsujii
Norio Hayashi
Publication date
01-03-2011
Publisher
Springer Japan
Published in
Journal of Gastroenterology / Issue 3/2011
Print ISSN: 0944-1174
Electronic ISSN: 1435-5922
DOI
https://doi.org/10.1007/s00535-010-0350-1

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