title: Prognostic factors in primary adenocarcinoma of the small intestine: 13-year single institution experience.
abstract: BACKGROUND
  Adenocarcinoma of the small bowel is a relatively rare malignancy as compared to the other malignancies of the gastrointestinal tract. Nonspecific presentation and infrequent occurrence often leads to a delay in diagnosis and consequent poor prognosis. Various other factors are of prognostic importance while managing these tumors.
  
  
  METHODS
  The medical records of a total of 27 patients treated for adenocarcinoma of the small bowel at Providence Hospital and Medical Centers from year 1990 through 2003 were reviewed retrospectively. Data were analyzed using SPSS software (version 10.0; SPSS, Inc., Chicago, IL). Survival analyses were calculated using the Kaplan Meier method with the log rank test to assess the statistical significance. The socio-demographics (age, gender) were calculated using frequency analyses.
  
  
  RESULTS
  The patients included nine males and eighteen females with a median age at diagnosis of 62 years. Only 48% of the patients had an accurate preoperative diagnosis while another 33% had a diagnosis suspicious of small bowel malignancy. None of the patients presented in stage 1. The cumulative five-year survival was 30% while the median survival was 3.3 years. There was no 30-day mortality in the postoperative period in our series.
  
  
  CONCLUSIONS
  The univariate analysis demonstrated that tumor grade, stage at presentation, lymph nodal metastasis and resection margins were significant predictors of survival.
authors.affiliation: Department of Surgery, Providence Hospital and Medical Centers, Southfield, Michigan 48075, USA. kchaiyas@msn.com
authors.forename: Kongkrit
authors.initials: K
authors.lastname: Chaiyasate
authors.forename: Akhilesh K
authors.initials: AK
authors.lastname: Jain
authors.forename: Laurence Y
authors.initials: LY
authors.lastname: Cheung
authors.forename: Michael J
authors.initials: MJ
authors.lastname: Jacobs
authors.forename: Vijay K
authors.initials: VK
authors.lastname: Mittal
mesh_terms: D000230:Adenocarcinoma / Q000401:mortality* / Q000473:pathology / Q000601:surgery*; D000368:Aged; D000714:Anastomosis, Surgical; D015331:Cohort Studies; D018572:Disease-Free Survival; D005260:Female; D006801:Humans; D007150:Immunohistochemistry; D007414:Intestinal Neoplasms / Q000401:mortality* / Q000473:pathology / Q000601:surgery*; D007421:Intestine, Small / Q000473:pathology*; D053208:Kaplan-Meier Estimate; D007813:Laparotomy / Q000379:methods; D008297:Male; D008875:Middle Aged; D009367:Neoplasm Staging; D011336:Probability; D011379:Prognosis; D012189:Retrospective Studies; D018570:Risk Assessment; D016019:Survival Analysis; D013997:Time Factors; D016896:Treatment Outcome