Number of Lymph Node Metastases and Its Prognostic Significance in Early Gastric Cancer: A Multicenter Italian Study

J Surg Oncol. 2006 Sep 15;94(4):275-80; discussion 274. doi: 10.1002/jso.20566.

Abstract

Background and objectives: This study was aimed at evaluating the prognostic significance of the number of metastatic nodes in early gastric cancer (EGC).

Methods: In this multicenter retrospective study 652 cases of resected EGC were analyzed. We searched for lymph node metastases-associated risk factors and to identify subsets of patients with different prognosis according to the number of involved nodes.

Results: Nodal involvement was observed in 14.1%. A significant correlation was found between the presence of node metastases and tumor size (RR 1.34, P = 0.001), submucosal invasion (RR: 3.14, P = 0.007), Lauren diffuse/mixed type (RR: 4.88, P < 0.001) and Kodama Pen A type (RR: 4.59, P < 0.001). The 10-year survival rate was 92% for N0 cases, 82% and 73% for tumors with one to three and four to six positive nodes while it dropped to 27% with more than six metastatic nodes. Interestingly enough, the 10-year risk of recurrence diminished with the increasing number of retrieved nodes (>15) even in N0 patients.

Conclusions: Nodal involvement confirmed to be a significant prognostic factor. In view of the trend to a lower risk of recurrence when more than 15 nodes were retrieved and the better staging achieved we consider D2 lymphadenectomy the treatment of choice.

Publication types

  • Multicenter Study

MeSH terms

  • Adult
  • Aged
  • Aged, 80 and over
  • Female
  • Gastrectomy*
  • Humans
  • Italy
  • Lymph Node Excision*
  • Lymph Nodes / pathology*
  • Lymphatic Metastasis
  • Male
  • Middle Aged
  • Neoplasm Invasiveness
  • Prognosis
  • Retrospective Studies
  • Risk Factors
  • Stomach Neoplasms / mortality
  • Stomach Neoplasms / pathology*
  • Stomach Neoplasms / surgery*
  • Survival Rate