title: Incidence and treatment of periampullary duodenal cancer in the U.S. veteran patient population.
abstract: BACKGROUND
  Because fewer than 1000 cases of primary adenocarcinoma of the duodenum have been reported, earlier series are limited by local referral patterns and the long periods of time needed for retrospective reviews.
  
  
  METHODS
  This study reports the outcomes of preiampullary duodenal adenocarcinoma treatments in all hospitals of the Department of Veterans Affairs from 1987 through 1991, using computer and tumor registry records. Patients were grouped by their most aggressive treatment (resection > operative bypass > percutaneous biliary intubation) and survival calculated from the date of this procedure.
  
  
  RESULTS
  Of 2185 patients with periampullary cancers (1753 pancreatic, 432 other periampullary), 85 were duodenal and thus comprised only 4% of periampullary tumors. Thirty-four duodenal cancers were resected, 44 bypassed, and 7 had biliary intubation, with 30-day mortality rates of 6%, 18%, and 0%, respectively. Mean survival exceeded 1 year in all groups, and resection resulted in a significant increase in mean survival (784 vs. 438 days for nonresection, P = 0.01). The projected 5-year survival rate after resection was 23%. Mean survival after resection of 9 Stage I-II cancers was 668 days, but was similar after 5 resections with nodal or other metastases. Similarly, survival did not correlate with cancer stage in 13 palliated patients.
  
  
  CONCLUSIONS
  This large study of patients with duodenal cancer provides a unique perspective of disease prevalence and response to surgical treatment. Prolonged survival is common with any treatment, but the longest survivals were after resection.
authors.affiliation: Department of Surgery, John Cochran VA Medical Center, St. Louis, Missouri, USA.
authors.forename: R B
authors.initials: RB
authors.lastname: Sexe
authors.forename: T P
authors.initials: TP
authors.lastname: Wade
authors.forename: K S
authors.initials: KS
authors.lastname: Virgo
authors.forename: F E
authors.initials: FE
authors.lastname: Johnson
mesh_terms: D000230:Adenocarcinoma / Q000453:epidemiology* / Q000601:surgery / Q000628:therapy; D004379:Duodenal Neoplasms / Q000453:epidemiology* / Q000601:surgery / Q000628:therapy; D006801:Humans; D016019:Survival Analysis; D014481:United States; D014728:Veterans