BACKGROUND Warfarin is recommended for stroke prevention in high-risk patients with atrial fibrillation. However, it is often underutilized and inadequately managed in actual clinical practice. OBJECTIVES To examine the patterns of warfarin use and their relationship with stroke and bleeding in atrial fibrillation patients in community-based primary care practices. DESIGN Retrospective long...

BACKGROUND Despite the proven efficacy of warfarin, its use in patients with Atrial Fibrillation (AF) is reportedly low. We investigated the underuse and overuse of warfarin in the management of AF in general practices in the United Kingdom (UK) against the National Institute of Clinical Excellence (NICE, UK) guidelines whilst seeking to identify subgroups of AF patients to inform efforts to op...

BACKGROUND Heparin-induced thrombocytopenia (HIT) is a common, often catastrophic, syndrome that produces the most hypercoagulable of states. Emerging therapeutic strategies use alternative anticoagulants; warfarin's place is being reexamined. Early in the course of warfarin therapy, there may be net procoagulant effects because of the inhibition of protein C. With HIT, it has been suggested th...

A uricosuric agent, bucolome, has been shown to intensify the anticoagulant effect of warfarin. The aims of the present study were to clarify its mechanism(s) and to apply in vitro approaches for predicting this potentially life-threatening in vivo interaction. An in vivo study revealed that Japanese patients given warfarin with bucolome (300 mg/day, n = 21) showed a 1.5-fold greater internatio...

warfarin-induced skin necrosis (wisn) is a rare complication of anticoagulant therapy associated with a high incidence of  morbidity and mortality requiring immediate drug cessation. at particular risk are those with various thrombophilic abnormalities, especially when warfarinisation is undertaken rapidly with large loading doses of warfarin. cutaneous findings include petechiae that progress ...

background: warfarin is an effective oral anticoagulant which exert its effect by blocking the utilization of vitamin k. warfarin therapy requires ongoing monitoring using the international normalized ratio (inr). in this study, effect of modest increase in vitamin k intake from vegetables on inr values was evaluated in warfarin treated patients. methods: a single-center study involving 24 outp...

Background: Warfarin has been widely used for a long time as an oral anticoagulant agent. Warfarin is reported to have inflammatory role as well. The dose of Warfarin plays an important role in up and down regulation of interacting cytokines such as IL-6 and COX-2 (Cyclooxygenase). Objective: To investigate the effects of varying Warfarin doses on IL-6 and COX-2. Material and Methods: Serum IL-...

Background MicroRNAs (miRNAs) are implicated in various biological processes including anticoagulation. However, the modulation of miRNA by pharmacological intervention such as warfarin treatment in patients receiving warfarin has not been disclosed yet. The aim of this study work was to assess the effect of warfarin drug on expression level of mir-133a-3p in patients with mechanical heart valv...

BACKGROUND People infected with HIV are prone to venous thrombosis. Treatment of thrombosis is primarily with warfarin. No studies have addressed the effects of HIV infection on warfarin dose. The aims of this study were to determine whether the therapeutic dose of warfarin and induction time to therapeutic dose in HIV-infected patients differ from that in HIV-uninfected patients. METHODS A p...

BACKGROUND The Randomized Evaluation of Long-Term Anticoagulation Therapy (RE-LY) trial compared dabigatran 110 mg BID (D110) and 150 mg BID (D150) with warfarin for stroke prevention in 18 113 patients with nonvalvular atrial fibrillation. METHODS AND RESULTS Cardioversion on randomized treatment was permitted. Precardioversion transesophageal echocardiography was encouraged, particularly in...