Internal Medicine
Online ISSN : 1349-7235
Print ISSN : 0918-2918
ISSN-L : 0918-2918
ORIGINAL ARTICLES
A Comparison of Outcomes of Endoscopic Submucosal Dissection (ESD) For Early Gastric Neoplasms Between High-Volume and Low-Volume Centers: Multi-Center Retrospective Questionnaire Study Conducted by the Nagano ESD Study Group
Kinichi HottaTsuneo OyamaTaiji AkamatsuAkihisa TomoriOsamu HasebeNaoshi NakamuraEigo KojimaTomoaki SugaHideharu MiyabayashiHiroshi Ohta
Author information
JOURNAL OPEN ACCESS

2010 Volume 49 Issue 4 Pages 253-259

Details
Abstract

Objective Outcomes of endoscopic submucosal dissection (ESD) for early gastric neoplasms at low-volume centers have been unknown, because all previous reports have studied in advanced single centers. The aim of this study was to compare ESD outcomes between high- and low-volume centers.
Methods A retrospective questionnaire survey was conducted and 30 centers (96.8%) responded. The complete en-bloc resection rate (CERR) and the incidence of complications were analyzed. Early gastric cancer (EGC) was divided into three categories on the basis of pathological diagnosis-standard indication (SI), expanded indication (EI) and out-of-indication (OI).
Results A total of 703 early gastric neoplasms (586 EGCs, 117 gastric adenomas) were treated with ESD from January to December 2005. The institutions that treated more than 30 cases a year were classified as high-volume centers, and those with less than 30 cases, low-volume centers. In SI, the CERRs at high- and low-volume centers were 92.1% and 91.1%, in EI, CERRs were 86.2% and 82.6% and in OI, CERRs were 80.3% and 88.0%. The perforation rates at high- and low-volume centers were 3.6% and 4.7%. The intra-operative bleeding rates at high- and low-volume centers were 0.26% and 0%, while the delayed bleeding rates were 0% and 0.63%.
Conclusion There were no significant difference in the outcomes of ESD for early gastric neoplasms between high- and low volume centers.

Content from these authors
© 2010 by The Japanese Society of Internal Medicine
Previous article Next article
feedback
Top