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KMID : 0914820120120020099
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Journal of the Korean Gastric Cancer Association
2012 Volume.12 No. 2 p.99 ~ p.107
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The Clinical Accuracy of Endoscopic Ultrasonography and White Light Imaging in Gastric Endoscopic Submucosal Dissection
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Park Soon-Hong
Sung Sang-Hun
Lee Seung-Jun
Jung Min-Kyu
Kim Sung-Kook
Jeon Seong-Woo
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Abstract
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Purpose: Gastric mucosal neoplastic lesions should have characteristic endoscopic features for successful endoscopic submucosal dissection.
Materials and Methods: Out of the 1,010 endoscopic submucosal dissection, we enrolled 62 patients that had the procedure cancelled. Retrospectively, whether the reasons for cancelling the endoscopic submucosal dissection were consistent with the indications for an endoscopic submucosal dissection were assessed by analyzing the clinical outcomes of the patients that had the surgery.
Results: The cases were divided into two groups; the under-diagnosed group (30 cases; unable to perform an endoscopic submucosal dissection) and the over-diagnosed group (32 cases; unnecessary to perform an endoscopic submucosal dissection), according to the second endoscopic findings, compared with the index conventional white light image. There were six cases in the under-diagnosed group with advanced gastric cancer on the second conventional white light image endoscopy, 17 cases with submucosal invasion on endoscopic ultrasonography findings, 5 cases with a size greater than 3 cm and ulcer, 1 case with diffuse infiltrative endoscopic features, and 1 case with lymph node involvement on computed tomography. A total of 25 patients underwent a gastrectomy to remove a gastric adenocarcinoma. The overall accuracy of the decision to cancel the endoscopic submucosal dissection was 40% (10/25) in the subgroup that had the surgery.
Conclusions: The accuracy of the decision to cancel the endoscopic submucosal dissection, after conventional white light image and endoscopic ultrasonography, was low in this study. Other diagnostic options are needed to arrive at an accurate decision on whether to perform a gastric endoscopic submucosal dissection.
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KEYWORD
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Endoscopic submucosal dissection, Accuracy, Low grade dysplasia, Early gastric cancer
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