Medical

factor V Leiden mutation

Also found in: Dictionary, Legal, Acronyms, Encyclopedia.

factor V Leiden mutation

A mutation in the gene for the blood clotting factor V that leads to a type of increased clotting tendency known as activated protein C resistance (APC resistance). The mutation involves a CpG dinucleotide, a common location for a mutation. APC resistance from this cause is recognized as a cause of stroke in children but the mutation is often detected for the first time in people over 60 suffering a first episode of thrombosis. The mutation was discovered in the Thrombosis and Haemostasis Research Centre, University Hospital, Leiden, Netherlands.
Collins Dictionary of Medicine © Robert M. Youngson 2004, 2005
References in periodicals archive
Patients with Factor V Leiden mutation requiring anticoagulation with warfarin should receive extensive counseling regarding alcohol use and the risk of re-initiating therapy after self-discontinuation without heparin bridging.
[41] found APC resistance in 4 (11%) of 35 patients, but the factor V Leiden mutation was confirmed in only 1 of these 4 cases (3%).
Activated protein C resistance, the factor V Leiden mutation, and a laboratory testing algorithm.
Detection of factor V Leiden mutation in severe pre-eclamptic Hungarian women.
Factor V Leiden mutation Protein C and S deficiency are the leading causes of thrombophilia with strong association of Factor V Leiden as a risk for developing DVT and CVA.
Detection of the factor V Leiden mutation by a modified photocross-linking oligonucleotide hybridization assay.
Doing nothing is perilous in a woman of childbearing age carrying the factor V Leiden mutation because pregnancy is also a risk factor for VTE in these women, Dr.
A positive test result for activated protein C resistance typically warrants a polymerase chain reaction assay to distinguish the factor V Leiden mutation from other causes of activated protein C resistance.
The factor V Leiden mutation is present in 3% to 5% of the general white population in heterozygous form.
(4-6) Women with familial coagulation disorders, including factor V Leiden mutation, prothrombin G20210A mutation, deficiencies of anticoagulant proteins (antithrombin, protein C, protein S), and elevations in procoagulant factors (factor VIII, factor IX, factor XI), are 2 to 8 times more likely to experience a VTE event than are unaffected individuals.
Copyright © 2003-2025 Farlex, Inc Disclaimer
All content on this website, including dictionary, thesaurus, literature, geography, and other reference data is for informational purposes only. This information should not be considered complete, up to date, and is not intended to be used in place of a visit, consultation, or advice of a legal, medical, or any other professional.