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KMID : 0931320070070010013
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대한상부위장관.헬리코박터학회지
2007 Volume.7 No. 1 p.13 ~ p.19
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Clinical Characteristics and Lymph Node Status in the Patients with Gastrectomy after Endoscopic Mucosal Resection for Early Gastric Cancer
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Song Ji-Hyun
Kim Jae-Jun
Lee Jun-Haeng
Min Byung-Hoon
Yang Sun
Park Sin-Sil
Kim Young-Ho
Chang Dong-Kyung
Sohn Hee Jung
Rhee Poong-Lyul
Rhee Jong-Chul
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Abstract
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Background/Aims: This study was conducted to evaluate the predictive factors of residual cancer or lymph node metastasis in patients with early gastric cancer (EGC) treated by endoscopic mucosal resection (EMR).
Methods: We retrospectively analyzed 34 patients with EGC who underwent gastrectomy as a result of incomplete resection by EMR at Samsung medical center from January 2000 to December 2004.
Results: The positive residual cancer rate was 45.5% (5/11) in positive lateral margin, 19.0% (4/21) in submucosal invasion, and 20.0% (1/5) in undifferentiated subtype. Tumor size in the group of positive residual cancer in remnant stomach was 4.0 cm, which was significantly larger than that of negative residual cancer (1.8 cm). There was no significant difference between these groups with respect to location, endoscopic finding, differentiation, or invasion depth. The factors of positive lateral margin and size larger than 3 cm were associated with higher risk of residual cancer, but multivariate analysis showed no statistical significance. There were 2 cases of lymph node metastasis and all showed submucosal invasion.
Conclusions: The risk of residual cancer was higher in the case with positive lateral margin and size larger than 3 cm. Surgery is recommended when there is submucosal invasion. (The Korean Journal of Helicobacter and Upper Gastrointestinal Research 2007;7:13-19)
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KEYWORD
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Early gastric cancer, Endoscopic mucosal resection, Gastrectomy, Lymph node metastasis
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