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KMID : 0914820090090030104
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Journal of the Korean Gastric Cancer Association
2009 Volume.9 No. 3 p.104 ~ p.109
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The Surgical Diagnosis for Detecting Early Gastric Cancer and Lymph Node Metastasis: Its Role for Making the Decision of the Limited Surgery
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Park Eun-kyu
Cheong Oh
Ryu Seong-Yeop
Ju Jae-Kyun
Kim Dong-Yi
Jung Mi-Ran
Kim Ho-Goon
Kim Hoe-Won
Park Young-Kyu
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Abstract
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Purpose: The aim of this study is to evaluate the accuracy of surgically diagnosing early gastric cancer (EGC) and lymph node metastasis, and to determine its role for performing limited surgery for EGC.
Materials and Methods: We reviewed 369 patients who underwent gastrectomy for primary gastric carcinoma. The surgical diagnosis was evaluated by determining its sensitivity, specificity and accuracy, and this was compared with the preoperative examinations.
Results: The sensitivity, specificity, and accuracy of the intraoperative diagnosis for EGC were 74.5%, 95.7% and 83.7%, respectively. The predictive value for EGC according to the intraoperative diagnosis was 95.7%. The surgical diagnosis of EGC showed higher specificity and a higher predictive value than preoperative examinations, which significantly reduced the risk of underestimating advanced gastric cancer (AGC) to EGC. The sensitivity, specificity, and accuracy for lymph node metastasis according to the surgical diagnosis were 73.2%, 78.1% and 76.4%, respectively. For 70 patients with a discrepancy in the diagnosis of EGC between the pre- and intra-operative diagnosis, the surgical diagnosis was correct in 63 (90%) patients, but the preoperative examinations were correct in only 7 (10%) patients.
Conclusion: The surgical diagnosis showed better accuracy than the preoperative examinations for detecting EGC and lymph node metastasis. Our results suggest that the decision for conducting limited surgery based on the surgical diagnosis might reduce the risk of under-treatment of AGC to EGC better than the preoperative examinations.
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KEYWORD
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Early gastric cancer, Lymph node, Surgical diagnosis, Limited surgery
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