title: The association between preoperative concentration of soluble vascular endothelial growth factor, perioperative blood transfusion, and survival in patients with primary colorectal cancer.
abstract: OBJECTIVE
  To investigate a possible association between the preoperative concentration of soluble vascular endothelial growth factor (sVEGF), perioperative blood transfusion, and survival in patients operated on for colorectal cancer.
  
  
  METHODS
  Retrospective study.
  
  
  METHODS
  University hospital, Denmark.
  
  
  METHODS
  614 patients operated on for primary colorectal cancer.
  
  
  METHODS
  Association between preoperative blood transfusion and preoperative concentration of sVEGF. Association between perioperative blood transfusion and survival.
  
  
  RESULTS
  Blood transfused up to one month before preoperative serum samples were obtained was significantly (p = 0.02) associated with high preoperative concentrations of sVEGF. The frequency of perioperative blood transfusion was significantly (p = 0.0007) higher in patients with rectal cancer than in patients with colon cancer. A multivariate analysis showed that intraoperative or postoperative blood transfusion or both, were significantly (p = 0.03) associated with poor survival in patients with Dukes stage A, B and C rectal cancers, while this association was not found in patients with colon cancer.
  
  
  CONCLUSIONS
  Preoperative blood transfusion may be associated with high preoperative concentrations of sVEGF in patients with colorectal cancer. Transfusion during or after the operation is associated with poor survival in patients with Dukes stage A, B, and C rectal cancers.
authors.affiliation: Department of Surgical Gastroenterology, Hvidovre Hospital, University of Copenhagen, Hvidovre, Denmark. k.werther@ofir.dk
authors.forename: K
authors.initials: K
authors.lastname: Werther
authors.forename: I J
authors.initials: IJ
authors.lastname: Christensen
authors.forename: H J
authors.initials: HJ
authors.lastname: Nielsen
mesh_terms: D000328:Adult; D000704:Analysis of Variance; D001803:Blood Transfusion; D015179:Colorectal Neoplasms / Q000097:blood* / Q000401:mortality / Q000601:surgery / Q000628:therapy; D016228:Endothelial Growth Factors / Q000097:blood*; D005260:Female; D006801:Humans; D008222:Lymphokines / Q000097:blood*; D008297:Male; D008875:Middle Aged; D015999:Multivariate Analysis; D009367:Neoplasm Staging; D011300:Preoperative Care; D011379:Prognosis; D012189:Retrospective Studies; D016019:Survival Analysis; D065227:Transfusion Reaction; D042461:Vascular Endothelial Growth Factor A; D042442:Vascular Endothelial Growth Factors
chemical_list: D016228:Endothelial Growth Factors; D008222:Lymphokines; D042461:Vascular Endothelial Growth Factor A; D042442:Vascular Endothelial Growth Factors