Lynn B. Oertel

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Venous thromboembolism (VTE) is a serious medical condition associated with significant morbidity and mortality, and an incidence that is expected to double in the next forty years. The advent of direct oral anticoagulants (DOACs) has catalyzed significant changes in the therapeutic landscape of VTE treatment. As such, it is imperative that clinicians(More)
To determine the effect of long-term warfarin sodium therapy on quality of life, we surveyed 333 patients participating in a randomized, controlled trial of warfarin for the prevention of stroke in nonrheumatic atrial fibrillation. No significant differences between warfarin-treated and control patients were found on well-validated measures of functional(More)
Unfractionated heparin (UFH) is associated with a high rate of drug-related problems due to either its inherent pharmacologic properties or an extension of these properties often caused by medication errors. The drug-related problems associated with UFH can significantly hinder the success of therapy and negatively affect the overall cost of care.(More)
OBJECTIVE To provide recommendations, policies, and procedures pertaining to the provision of optimized anticoagulation therapy designed to achieve desired clinical endpoints while minimizing the risk of anticoagulant-related adverse outcomes (principally bleeding and thrombosis). STUDY SELECTION AND DATA EXTRACTION Due to this document's scope, the(More)
BACKGROUND AND PURPOSE The Boston Area Anticoagulation Trial for Atrial Fibrillation (BAATAF) demonstrated that low-intensity warfarin anticoagulation can, with safety, sharply reduce the rate of stroke in patients with nonvalvular atrial fibrillation. The beneficial effect of warfarin was presumably related to a decrease in clot formation in the cardiac(More)
BACKGROUND Changes in daily vitamin K intake may contribute to marked variations in the International Normalized Ratio (INR) coagulation index in patients receiving oral warfarin anticoagulant therapy, with potentially serious adverse outcomes. Thus, patients receiving warfarin therapy are routinely counseled regarding this drug-nutrient interaction and are(More)
BACKGROUND Nonrheumatic atrial fibrillation increases the risk of stroke, presumably from atrial thromboemboli. There is uncertainty about the efficacy and risks of long-term warfarin therapy to prevent stroke. METHODS We conducted an unblinded, randomized, controlled trial of long-term, low-dose warfarin therapy (target prothrombin-time ratio, 1.2 to(More)
Recent randomized trials have consistently demonstrated the marked efficacy of warfarin in reducing the risk of stroke caused by nonrheumatic atrial fibrillation. These trials have provided conflicting evidence on the effect of aspirin. We report the aspirin analysis from the BAATAF study, a trial in which control patients could choose to take aspirin.(More)
BACKGROUND While anticoagulation clinics have been shown to deliver tailored, high-quality care to patients receiving warfarin therapy, communication barriers with limited English proficient (LEP) patients may lead to disparities in anticoagulation outcomes. METHODS AND RESULTS We analyzed data on 3770 patients receiving care from the Massachusetts(More)