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- Title
Lymphatic Invasion Might Be Considered as an Upstaging Factor in N0 and N1 Gastric Cancer †.
- Authors
Choi, Won Hyuk; Kim, Min Jeong; Park, Jun Ho; Kang, Jin Gu; Seo, Seung In; Kim, Hak Yang; Shin, Woon Geon
- Abstract
(Background) The aim of this study was to investigate the prognostic impact of lymphatic invasion in gastric cancer, focusing on survival differences between N stage groups. (Methods) A total of 398 consecutive patients who underwent curative gastrectomy for primary gastric adenocarcinoma from January 2006 to December 2015 were analyzed retrospectively using data from a prospectively collected registry database. We compared various clinicopathological features and survival differences between lymphatic invasion-positive and -negative groups. (Results) Of the 398 patients, 141 (35.4%) showed lymphatic invasion. The lymphatic invasion-positive subgroup had poorer prognosis than the lymphatic invasion-negative subgroup in N0 (five-year survival rate: 87.8% vs. 73.6%, p = 0.048) and N1 (87.2% vs. 50%, p = 0.007) stage patients. The odds ratio (OR) of lymphatic invasion to five-year survival rate was 2.078 (95% confidence interval (CI), 1.103–3.916; p = 0.024). The presence of lymphatic invasion had worse effect on survival than age (OR, 1.807; 95% CI, 1.024–2.242; p = 0.029) or tumor depth (OR, 1.286; 95% CI, 1.078–1.897; p = 0.013) in N0 and N1 stage patients. The overall survival of patients with lymphatic invasion was not different from that of patients at a one-higher N stage without lymphatic invasion at any N stage. (Conclusions) The presence of lymphatic invasion may be the most important independent prognostic factor in N0 and N1 gastric cancer and might be an upstaging factor of N stage at any N stage. Therefore, in addition to the number of metastasized lymph nodes, the presence of lymphatic invasion should be included in N stage determination.
- Subjects
STOMACH cancer; LYMPHATIC metastasis; ODDS ratio; LYMPH nodes; CONFIDENCE intervals; GASTRECTOMY
- Publication
Journal of Clinical Medicine, 2020, Vol 9, Issue 5, p1275
- ISSN
2077-0383
- Publication type
Article
- DOI
10.3390/jcm9051275