Lymphatic, blood vessel and perineural invasion identifies early-stage high-risk radically resected gastric cancer patients

Br J Cancer. 2006 Aug 21;95(4):445-9. doi: 10.1038/sj.bjc.6603286. Epub 2006 Aug 1.

Abstract

The availability of different treatment options for radically resectable gastric cancer reopened the question of treatment selection and correct definition of high-risk categories. Lymphatic, blood vessel and perineural invasion (LBVI/PNI) seem to possess the necessary potential to provide useful information for the clinical management of this disease. Seven hundred and thirty-four patients with advanced gastric cancer who underwent curative gastrectomy were analysed according to the presence of LBVI/PNI. Patients were divided into two groups: group A for patients with LBVI/PNI (189 patients 26%) and group B for patients without LBVI/PNI (545 patients, 74%). The disease-free survival (DFS) for patients in group A was 32.1 months, whereas it was not reached for patients in group B (P=0.0001); the median overall survival was 45.5 months for patients in group A, whereas it was not reached for patients in group B (P=0.0001). At multivariate analysis, the presence of LBVI/PNI appeared an independent prognostic factor for DFS and OS. Our results were confirmed in subgroup analysis, separately considering stage I and early gastric cancer patients with and without LBVI/PNI. Taken together, our findings suggest the importance of LBVI/PNI in gastric cancer as it may provide additional information for identifying patients at high risk, who may be candidates for further medical treatment after or before surgery.

MeSH terms

  • Adult
  • Aged
  • Aged, 80 and over
  • Disease Management
  • Disease-Free Survival
  • Female
  • Gastrectomy
  • Humans
  • Lymphatic Metastasis*
  • Male
  • Middle Aged
  • Multivariate Analysis
  • Neoplasm Invasiveness
  • Peripheral Nervous System Neoplasms / secondary*
  • Prognosis
  • Stomach / blood supply
  • Stomach / innervation
  • Stomach Neoplasms / blood supply
  • Stomach Neoplasms / pathology*
  • Stomach Neoplasms / surgery
  • Survival Rate
  • Vascular Neoplasms / secondary*