title: [Relationship between the dissected lymph node number and the prognosis in D(2) gastrectomy for gastric cancer].
abstract: OBJECTIVE
  To examine the relationship between the dissected lymph-node number and the prognosis in D(2) gastrectomy for gastric cancer.
  
  
  METHODS
  From January 1996 to January 2005, 457 patients with primary gastric cancer undergone gastrectomy with different extent of lymphadenectomy in our hospital were followed-up in term of prognostic benefit.
  
  
  RESULTS
  In lymph-node metastasis group, the 1-, 3-, 5-year survival rates were 82.4%, 49.0%, 33.4% with dissection of >20 nodes and 71.5%, 49.7%, 40.1% with dissection of 16-20 nodes. In the group without lymph-node metastasis, the 1-, 3-, 5-year survival rates were 98.2%, 92.7%, 84.7% with dissection of >20 nodes and 94.0%, 89.7%, 81.4% with dissection of 16-20 nodes. Whether or not it had lymph-node metastasis, the survival curve failed to show any significant difference with regard to the extent of lymph node dissection.
  
  
  CONCLUSIONS
  As to lymphadenectomy for gastric cancer, it is enough to excise the lymph node between 16 and 20. The number of excised lymph node should not be overemphasized unless it is metastasized.
authors.affiliation: Department of Gastrointestinal Oncology Surgery, Tianjin Cancer Hospital, Tianjin Medical University, Tianjin, China.
authors.forename: Han
authors.initials: H
authors.lastname: Liang
authors.forename: Qiang
authors.initials: Q
authors.lastname: Xue
authors.forename: Ru-Peng
authors.initials: RP
authors.lastname: Zhang
authors.forename: Xi-Shan
authors.initials: XS
authors.lastname: Hao
mesh_terms: D005260:Female; D005500:Follow-Up Studies; D006801:Humans; D008197:Lymph Node Excision; D008198:Lymph Nodes / Q000473:pathology* / Q000601:surgery; D008207:Lymphatic Metastasis / Q000473:pathology; D008297:Male; D009367:Neoplasm Staging; D011379:Prognosis; D021701:Sentinel Lymph Node Biopsy; D013274:Stomach Neoplasms / Q000473:pathology* / Q000601:surgery*