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Clinical implication of an insufficient number of examined lymph nodes after curative resection for gastric cancer

Authors
 Taeil Son  ;  Woo Jin Hyung  ;  Joong Ho Lee  ;  Yoo Min Kim  ;  Hyoung‐Il Kim  ;  Ji Yeong An  ;  Jae‐Ho Cheong  ;  Sung Hoon Noh 
Citation
 CANCER, Vol.118(19) : 4687-4693, 2012 
Journal Title
 CANCER 
ISSN
 0008-543X 
Issue Date
2012
MeSH
Adult ; Aged ; Female ; Gastrectomy* ; Humans ; Logistic Models ; Lymph Node Excision* ; Lymph Nodes/pathology* ; Lymph Nodes/surgery* ; Lymphatic Metastasis ; Male ; Middle Aged ; Multivariate Analysis ; Neoplasm Staging ; Prognosis ; Retrospective Studies ; Stomach Neoplasms/mortality ; Stomach Neoplasms/pathology* ; Stomach Neoplasms/surgery* ; Survival Analysis ; Treatment Outcome
Abstract
BACKGROUND: The seventh edition of the tumor, lymph node (LN), metastasis (TNM) staging system increased the required number of examined LNs in gastric cancer from 15 to 16. However, the same staging system defines lymph node-negative gastric cancer regardless of the number of examined LNs. In this study, the authors evaluated whether gastric cancer can be staged properly with fewer than 15 examined LNs. METHODS: The survival rates of 10,010 patients who underwent curative gastrectomy from 1987 to 2007 were analyzed. The patients were divided into 2 groups according to the number of examined LNs, termed the "insufficient" group (≤15 examined LNs) and the "sufficient" group (≥16 examined LNs). The survival curves of patients from both groups were compared according to the seventh edition of the TNM classification. RESULTS: Three hundred sixteen patients (3.2%) had ≤15 examined LNs for staging after they underwent standard, curative lymphadenectomy. Patients who had T1 tumor classification, N0 lymph node status, and stage I disease with an insufficient number of examined LNs after curative gastrectomy had a significantly worse prognosis than patients who had ≥16 examined LNs. Moreover, having an insufficient number of examined LNs was an independent prognostic factor for patients who had T1, N0, and stage I disease. CONCLUSIONS: Lymph node-negative cancers in which ≤15 LNs were examined, classified as N0 in the new TNM staging system, could not adequately predict patient survival after curative gastrectomy, especially in patients with early stage gastric cancer.
Full Text
https://onlinelibrary.wiley.com/doi/full/10.1002/cncr.27426
DOI
10.1002/cncr.27426
Appears in Collections:
1. College of Medicine (의과대학) > Dept. of Surgery (외과학교실) > 1. Journal Papers
Yonsei Authors
Kim, Hyoung Il(김형일) ORCID logo https://orcid.org/0000-0002-6134-4523
Noh, Sung Hoon(노성훈) ORCID logo https://orcid.org/0000-0003-4386-6886
Son, Tae Il(손태일) ORCID logo https://orcid.org/0000-0002-0327-5224
Cheong, Jae Ho(정재호) ORCID logo https://orcid.org/0000-0002-1703-1781
Hyung, Woo Jin(형우진) ORCID logo https://orcid.org/0000-0002-8593-9214
URI
https://ir.ymlib.yonsei.ac.kr/handle/22282913/165988
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