title: Factor V Leiden mutation does not account for central venous catheter-related thrombosis.
abstract: Indwelling central venous access devices are frequently associated with catheter-related thrombosis. The factor V Leiden gene mutation decreases the sensitivity of factor V to the anticoagulant activity of activated protein C, and has been shown to be the most common inherited defect associated with a hypercoagulable state. In this study, we sought to determine whether an increased prevalence of the factor V gene mutation could be identified in individuals with malignancies who had catheter-related thrombosis. Twenty-seven patients who had catheter-related thrombosis were identified and two (7%) tested positive for the heterozygous presence of the factor V gene mutation. Since the vast majority of patients with venous access devices who developed catheter-related thrombosis did not have the factor V gene mutation, pre-catheter placement testing for this mutation would have limited clinical utility.
authors.affiliation: Section of Hematology/Oncology, Virginia Mason Medical Center, Seattle, Washington 98111, USA.
authors.forename: M
authors.initials: M
authors.lastname: Riordan
authors.forename: P L
authors.initials: PL
authors.lastname: Weiden
mesh_terms: D000328:Adult; D000368:Aged; D000369:Aged, 80 and over; D002405:Catheterization, Central Venous / Q000009:adverse effects*; D005165:Factor V / Q000235:genetics*; D005260:Female; D006801:Humans; D008297:Male; D008875:Middle Aged; D009154:Mutation; D012307:Risk Factors; D013927:Thrombosis / Q000209:etiology*
chemical_list: C095381:factor V Leiden; D005165:Factor V