An Inpatient COVID-19 Prophylaxis Protocol and Its Outcomes: Adherence and Efficacy
Abstract
Introduction: Patients with coronavirus disease 2019 (COVID-19) have an increased risk for venous thromboembolic events. Thrombotic events contribute to the morbidity and mortality associated with COVID-19 infection, and have prompted investigation into strategies for mitigating thrombosis risk in patients hospitalized with COVID-19 infection. Our team reviewed the charts of patients hospitalized with COVID-19 pneumonia at a tertiary hospital in metropolitan Phoenix Arizona between 2020-2021, to assess frequency and efficacy of utilizing a VTE prophylaxis algorithm designed to prevent thrombosis in patients infected with COVID-19. Methods: A total of 846 patients were retrospectively evaluated to determine if they were treated with guideline-appropriate anticoagulation while hospitalized with COVID-19, as well as if they developed venous or arterial thrombotic events, or major or minor bleeds. 317 patients were excluded for taking therapeutic anticoagulation prior to admission, or for having a COVID-19 diagnosis >7 days after admission. Appropriate anticoagulation was determined by an institutionally designed COVID-19 thromboprophylaxis algorithm, based on platelet count, d-dimer, bleeding risk, and level of medical care required. Regimen options included: no anticoagulation, prophylactic enoxaparin (40 mg SQ daily) or heparin in the setting of kidney dysfunction, weight-based dosing of enoxaparin (40 mg SQ BID if BMI>40), intermediate intensity enoxaparin without thrombus…
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