Resumen

MARIN CORDOVA, Norma Edith et al. Prognostic significance of the ratio of lymph node metastatic in 5-year survival after curative gastrectomy for advanced gastric carcinoma. Rev. gastroenterol. Perú [online]. 2017, vol.37, n.3, pp.217-224. ISSN 1022-5129.

Objective: Determine the prognostic significance of metastatic lymph node ratio in 5-year survival of patients after curative distal gastrectomy for advanced gastric carcinoma. Materials and methods: This study survival analysis, prospective, observational, longitudinal, analyzed data from 68 patients with resectable advanced gastric adenocarcinoma treated at the Regional Institute of Neoplastic Disease Luis Pinillos Ganoza during the period 2008-2013. Results: The number of metastatic lymph nodes ranged from 0-29 (mean, 3.9±5.8) and the number of resected lymph nodes understood ranges from 13 to 66 (mean 35.34±12.60). There was no significant correlation between the number of metastatic lymph nodes and number of resected lymph nodes (r=0.208, p=0.089). Survival of the total number at 5 years was 55.9%, with a median survival of 44.11±3.38 months According to regional nodal status (N) of the 7th edition of the UICC, patients with N0 (n=27), pN1 (n=12), pN2 (n=17) and pN3 (n=12) showed survival rates at 5 years of 77.2%, 27.2%, 46.3% and 40% respectively (p=0.005). Patients were stratified into NR0 (reason 0%), NR1 (ratio 1-59%) and NR2 (ratio >60%). Their survival rates at 5 years were 77.2%, 40.9% and 33.3% respectively (p=0.013). Conclusions: The metastatic lymph node ratio is a predictor system actuarial survival at 5 years compared consistent with regional nodal status (N) classification system of the International Union Against Cancer

Palabras clave : Stomach neoplasms; Survival; Carcinoma; Lymph nodes.

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