title: Proposal of a risk score for recurrence in patients with curatively resected gastric cancer.
abstract: In this study, 168 patients who underwent curative resection for gastric cancer with prognostic serosal invasion [ps(+)] and 150 without prognostic serosal invasion [ps(-)] were analyzed separately to determine the prognostic importance of clinicopathological factors, and identify which patients were at high risk of recurrence. A multivariate analysis of survival time using Cox's proportional hazard model revealed the important prognostic factors to be: Lymph node involvement, the classification of gross appearance, macroscopic serosal invasion, and interstitial connective tissue in the ps(+) group; and lymph node involvement, macroscopic serosal invasion, and venous invasion in the ps(-) group. We proposed a risk score of recurrence based on the results of a further multivariate analysis called Hayashi's Quantification Analysis II, in which recurrence was chosen as an objective variable and the above prognostic factors were chosen as explanatory variables. Eighty-four percent of the patients with a score of 0 or higher in the ps(+) group and 83% of those with a score of +6 or higher in the ps(-) group showed recurrence. Thus, we believe that this score is useful for identifying those patients at high risk of recurrence, who should receive intensive chemotherapy even after curative resection.
authors.affiliation: First Department of Surgery, National Defense Medical College, Tokorozawa, Japan.
authors.forename: T
authors.initials: T
authors.lastname: Ichikura
authors.forename: K
authors.initials: K
authors.lastname: Fujino
authors.forename: H
authors.initials: H
authors.lastname: Ikawa
authors.forename: S
authors.initials: S
authors.lastname: Tomimatsu
authors.forename: K
authors.initials: K
authors.lastname: Uefuji
authors.forename: S
authors.initials: S
authors.lastname: Tamakuma
mesh_terms: D005260:Female; D005500:Follow-Up Studies; D005743:Gastrectomy; D005753:Gastric Mucosa / Q000473:pathology; D006801:Humans; D008113:Liver Neoplasms / Q000401:mortality / Q000473:pathology / Q000556:secondary; D008207:Lymphatic Metastasis; D008297:Male; D015999:Multivariate Analysis; D009361:Neoplasm Invasiveness; D009364:Neoplasm Recurrence, Local / Q000401:mortality / Q000473:pathology / Q000601:surgery*; D009367:Neoplasm Staging; D010534:Peritoneal Neoplasms / Q000401:mortality / Q000473:pathology / Q000556:secondary; D016016:Proportional Hazards Models; D012307:Risk Factors; D013274:Stomach Neoplasms / Q000401:mortality / Q000473:pathology / Q000601:surgery*; D016019:Survival Analysis; D015996:Survival Rate