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KMID : 0914820100100030087
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Journal of the Korean Gastric Cancer Association
2010 Volume.10 No. 3 p.87 ~ p.90
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The Extended Indications of Endoscopic Submucosal Dissection (ESD) for Early Gastric Cancer Are Thus Not Entirely Safe
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Lee Ju-Hee
Kim Hyung-Ho
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Abstract
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Early gastric cancer (EGC) is defined as tumor invasion confined to the mucosa or submucosa, regardless of the presence of regional lymph node metastasis. Lymph node metastasis is the most powerful and important prognostic factor for gastric cancer. Based on the risk of lymph node metastasis in EGC obtained from a large number of surgical cases in Japan, it was suggested that the criteria for endoscopic mucosal resection (EMR) and endoscopic submucosal resection (ESD) as local treatment for EGC might be extended. However, extending the indications for EMR and ESD remains controversial because the long-term outcomes of these procedures have not been fully documented, and there is a risk for lymph node metastasis. Furthermore, current diagnostic imaging techniques are unsatisfactory for accurately predicting metastasis to lymph nodes. Moreover, the long-term results of standard radical gastrectomy including minimally invasive procedures for stage IA have been increasing and have reached 99 to 100%. To determine the true efficacy of endoscopic resection of EGC, we need more evidence of long-term follow-up, standardization of techniques, and pathological interpretation.
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KEYWORD
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Early gastric cancer, Endoscopic resection, Extended indication, Long-term follow-up
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