title: Clinicopathologic evaluation after resection for ductal adenocarcinoma of the pancreas: a retrospective, single-institution experience.
abstract: BACKGROUND
  Between April 1992 and December 2000, 167 patients with pancreatic carcinoma were evaluated and treated in our department. One hundred eight patients (64.7%) with pancreatic carcinoma underwent pancreatectomy. Of these patients, 94 had histologically proven ductal adenocarcinoma. The overall postoperative mortality rate was 3.2% (3 patients), and the morbidity rate was 35.1% (33 patients). The estimated 1-, 2-, 3-, and 5-year survival rates were 43.6%, 28.7%, 21.8%, and 12.9%, respectively. There were only six long-term survivors who survived >5 years after surgery. METHODOLOGY AND AIMS: Institutional experience with 94 consecutive patients with ductal adenocarcinoma who underwent pancreatectomy was reviewed to clarify the influence of 29 prognostic factors (5 host, 17 tumor, and 7 treatment factors). Special reference was made to determine whether these significant factors have an effect on long-term survival. Univariate and multivariate models were used to analyze the effect of prognostic factors on survival.
  
  
  RESULTS
  Univariate analysis indicated that blood loss, operative time, postoperative complications, histopathologic lymphatic and venous permeation, lymph node metastasis, conclusive stage, conclusive curability, resection margins, serosal invasion, size of tumor, retroperitoneal invasion, major arterial invasion, and mode of histologic infiltration were associated with significantly longer survival (p < 0.05). By Cox proportional hazards survival analysis, the most powerful predictors of outcome were venous permeation, lymph node metastasis, tumor diameter, and conclusive curability. The longest-term survivor had the most advanced stage (stage IV(b)) of disease and curability C. No long-term survivors had all of the good prognostic factors (according to multivariate analysis).
  
  
  CONCLUSIONS
  The prognosis after surgical resection of pancreatic carcinoma mostly depends on tumor factors. In this study, it was difficult to identify the determinants of long-term survival in patients with resectable tumors.
authors.affiliation: First Department of Surgery, Kansai Medical University, Moriguchi city, Osaka, Japan. takai@takii.kmu.ac.jp
authors.forename: S
authors.initials: S
authors.lastname: Takai
authors.forename: S
authors.initials: S
authors.lastname: Satoi
authors.forename: H
authors.initials: H
authors.lastname: Toyokawa
authors.forename: H
authors.initials: H
authors.lastname: Yanagimoto
authors.forename: N
authors.initials: N
authors.lastname: Sugimoto
authors.forename: K
authors.initials: K
authors.lastname: Tsuji
authors.forename: H
authors.initials: H
authors.lastname: Araki
authors.forename: Y
authors.initials: Y
authors.lastname: Matsui
authors.forename: A
authors.initials: A
authors.lastname: Imamura
authors.forename: A-H
authors.initials: AH
authors.lastname: Kwon
authors.forename: Y
authors.initials: Y
authors.lastname: Kamiyama
mesh_terms: D000230:Adenocarcinoma / Q000175:diagnosis* / Q000473:pathology / Q000601:surgery*; D000368:Aged; D021441:Carcinoma, Pancreatic Ductal / Q000175:diagnosis* / Q000473:pathology / Q000601:surgery*; D005260:Female; D006801:Humans; D008297:Male; D008875:Middle Aged; D010180:Pancreatectomy / Q000009:adverse effects / Q000401:mortality; D010190:Pancreatic Neoplasms / Q000175:diagnosis* / Q000473:pathology / Q000601:surgery*; D011379:Prognosis; D016019:Survival Analysis