title: The value of D1 lymphadenectomy as prognostic marker in gastric cancer.
abstract: OBJECTIVE
  To assess if the study on the involvement of perigastric lymph nodes, the only ones resected in D1 lymphadenectomy, is a valid prognostic marker in patients undergoing curative resection for gastric cancer.
  
  
  METHODS
  A retrospective study was performed in 101 patients with gastric cancer, 34 women and 67 men, with a mean age of 61 years, undergoing curative resection by gastrectomy and D1 lymphadenectomy. Tumor size, the depth of tumoral invasion of the wall, nodal involvement and 5-year survival were assessed.
  
  
  RESULTS
  Both tumor size and the depth of tumoral invasion of the wall were significantly related to metastatic involvement of perigastric lymph nodes. Similarly, tumoral involvement of the first-level lymph nodes was significantly associated with survival.
  
  
  CONCLUSIONS
  D1 lymphadenectomy can provide adequate prognostic information in patients with gastric cancer undergoing curative resection.
authors.affiliation: Department of General and Gastrointestinal Surgery, Hospital Virgen del Camino, C/Irunlarrea 4, 31008, Pamplona, Navarra, Spain.
authors.forename: A
authors.initials: A
authors.lastname: Diaz de Liaño
authors.forename: M A
authors.initials: MA
authors.lastname: Ciga
authors.forename: F
authors.initials: F
authors.lastname: Oteiza
authors.forename: M
authors.initials: M
authors.lastname: Aizcorbe
authors.forename: F
authors.initials: F
authors.lastname: Cobo
authors.forename: R
authors.initials: R
authors.lastname: Trujillo
authors.forename: M A
authors.initials: MA
authors.lastname: Nuin
mesh_terms: D000328:Adult; D000368:Aged; D000369:Aged, 80 and over; D005260:Female; D005743:Gastrectomy; D006801:Humans; D008197:Lymph Node Excision; D008198:Lymph Nodes / Q000473:pathology; D008207:Lymphatic Metastasis; D008297:Male; D008875:Middle Aged; D009361:Neoplasm Invasiveness; D009367:Neoplasm Staging; D011379:Prognosis; D013270:Stomach / Q000473:pathology; D013274:Stomach Neoplasms / Q000401:mortality / Q000473:pathology / Q000601:surgery*; D015996:Survival Rate