نتایج جستجو برای: warfarin dose
تعداد نتایج: 318316 فیلتر نتایج به سال:
Genetic factors most correlated with warfarin dose requirements are variations in the genes encoding the enzymes cytochrome P450 2C9 (CYP2C9) and vitamin K epoxide reductase (VKOR). Patients receiving warfarin who possess one or more genetic variations in CYP2C9 and VKORC1 are at increased risk of adverse drug events and require significant dose reductions to achieve a therapeutic international...
A 72-year-old man with non-valvular atrial fibrillation and metastatic liver and lung cancer after surgery for colon cancer developed thrombosis in the right atrium one month after decreasing the dose of warfarin due to the introduction of double anti-platelet therapy for coronary stent implantation. Restoring the warfarin dose with ordinary control for two months did not result in any changes ...
Background: atrial fibrillation (AF) is the commonest chronic arrhythmia with a prevalence of 9% in octogenarians and accounts for 24% of the stroke risk in this population. Although trials demonstrate reductions in stroke with warfarin, audit data show that it is still underused. However, anti-coagulation in the very elderly is not without risk. Methods: randomised open labelled prospective st...
Cytochrome P450 2C9 (CYP2C9) and vitamin K epoxide reductase complex subunit 1 (VKORC1) genetic polymorphisms were strongly associated with warfarin dose requirement in Caucasians, African Americans and other populations. Our aim was to evaluate the effect of CYP2C9 and VKORC1 genetic polymorphisms on warfarin dose requirement in south Indian population. A total of 150 patients on warfarin with...
BACKGROUND Patients with a non-ST-elevation acute coronary syndrome and prior CABG are at high risk of a recurrent ischemic event despite aspirin therapy. This trial investigated the potential benefit of secondary prevention with warfarin. METHODS AND RESULTS In a double-blind randomized trial, 135 patients with unstable angina or non-ST-segment elevation myocardial infarction, with prior CAB...
BACKGROUND Vitamin K epoxide reductase subunit 1 (VKORC1) is the molecular target of coumarin anticoagulants and mutations in VKORC1 have been identified previously in individuals who required high warfarin doses. OBJECTIVE Detailed characterization of the relationship between variation in VKORC1 and the warfarin resistance phenotype. PATIENTS AND METHODS Serum warfarin concentration and co...
BACKGROUND Edoxaban is a direct oral factor Xa inhibitor with proven antithrombotic effects. The long-term efficacy and safety of edoxaban as compared with warfarin in patients with atrial fibrillation is not known. METHODS We conducted a randomized, double-blind, double-dummy trial comparing two once-daily regimens of edoxaban with warfarin in 21,105 patients with moderate-to-high-risk atria...
OBJECTIVE To describe the efficacy and safety of an initiation algorithm for 4 mg of warfarin in ambulatory patients with atrial fibrillation. DESIGN Prospectively planned retrospective chart review. SETTING Centre for Family Medicine Family Health Team in Kitchener, Ont. PARTICIPANTS Ambulatory patients requiring anticoagulation for atrial fibrillation. INTERVENTIONS Patients were pres...
Tecarfarin is a vitamin K antagonist (VKA) with reduced propensity for drug interactions. To evaluate the pharmacokinetic (PK), pharmacodynamic (PD), and safety of tecarfarin, we performed single ascending dose (SAD) (n=66), multiple ascending dose (MAD) (n=43), and tecarfarin versus warfarin (n=28) studies in human volunteers. In the SAD, tecarfarin was administered to 5 of 6 subjects (1 recei...
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