Poor correlation of supratherapeutic international normalised ratio and vitamin K-dependent procoagulant factor levels during warfarin therapy
نویسندگان
چکیده
منابع مشابه
Effect of stress on international normalized ratio during warfarin therapy.
OBJECTIVE To discuss the effect of stress on the international normalized ratio (INR) when patients are taking warfarin. CASE SUMMARY Two patients at a pharmacist-managed anticoagulation clinic who were stable with anticoagulation developed elevated INR values after a stressful event occurred. All other factors known to elevate the INR were unchanged; furthermore, the INR values returned to t...
متن کاملProcoagulant Vitamin K-dependent Clotting Factors
We have evaluated the contribution of depression of individual procoagulant vitamin K-dependent clotting factors to the ability of warfarin to protect rabbits against tissue factor-induced coagulation. Mean activities of individual procoagulant factors were determined, in assays with rabbit substrates, for a group of rabbits achieving a protective degree of anticoagulation with warfarin. Values...
متن کاملA case report of temporary and acquired vitamin K-dependent clotting factor deficiency without any response to administrated vitamin K
Abstract Background and Objectives Vitamin K-dependent clotting factor deficiency (VKCFD) is usually an acquired problem due to liver disease, malabsorption, and overdose of warfarin. In the present paper the significance and role of vitamin K-dependent coagulation factors in menorrhagia were evaluated. Case We present a rare case of 43 year woman with acquired vitamin K deficiency and se...
متن کاملRelationship between international normalized ratio values, vitamin K-dependent clotting factor levels and in vivo prothrombin activation during the early and steady phases of oral anticoagulant treatment.
BACKGROUND AND OBJECTIVES In vitro studies have shown that the rate of prothrombin activation is linearly related to the concentration of factor II (FII) in the assay system, suggesting a key role of prothrombin levels in the expression of the antithrombotic activity of oral anticoagulant treatment (OAT). We investigated the in vivo relationship between prothrombin activation and vitamin K-depe...
متن کاملVitamin K-dependent proteins, warfarin, and vascular calcification.
Vitamin K-dependent proteins (VKDPs) require carboxylation to become biologically active. Although the coagulant factors are the most well-known VKDPs, there are many others with important physiologic roles. Matrix Gla Protein (MGP) and Growth Arrest Specific Gene 6 (Gas-6) are two particularly important VKDPs, and their roles in vascular biology are just beginning to be understood. Both functi...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: British Journal of Haematology
سال: 2006
ISSN: 0007-1048,1365-2141
DOI: 10.1111/j.1365-2141.2005.05917.x