title: Mesenteric vein thrombosis due to factor V Leiden gene mutation.
abstract: BACKGROUND
  Mesenteric venous thrombosis is a rare cause of acute abdominal pain that may be the result of coagulation abnormalities.
  
  
  METHODS
  Four consecutive patients with mesenteric venous thrombosis underwent haematological evaluation.
  
  
  RESULTS
  All four had activated protein C resistance resulting from a single mutation in the gene coding for coagulation factor V. Three had surgery; in one patient the diagnosis was made by ultrasonography. One of the patients who had surgery died but the other three survived and were treated with long-term anticoagulation.
  
  
  CONCLUSIONS
  Activated protein C resistance may be an important pathogenetic factor in primary mesen-teric vein thrombosis.
authors.affiliation: Department of Surgery, University Hospital of Malmö, Sweden.
authors.forename: M
authors.initials: M
authors.lastname: Bergenfeldt
authors.forename: P J
authors.initials: PJ
authors.lastname: Svensson
authors.forename: A
authors.initials: A
authors.lastname: Borgström
mesh_terms: D015746:Abdominal Pain / Q000209:etiology; D020016:Activated Protein C Resistance / Q000235:genetics; D000328:Adult; D000368:Aged; D005165:Factor V / Q000235:genetics*; D006801:Humans; D008297:Male; D008642:Mesenteric Veins; D008875:Middle Aged; D009154:Mutation / Q000235:genetics*; D020246:Venous Thrombosis / Q000235:genetics*
chemical_list: C095381:factor V Leiden; D005165:Factor V