Abstract
BackgroundVenous thromboembolism (VTE) affects approximately 1–2 individuals per 1000 annually and is associated with an increased risk for pulmonary hypertension, postthrombotic syndrome, and recurrent VTE. ObjectiveTo determine risk factors, incidence, treatments, and outcomes of VTE through a 2‐year surveillance program initiated in Durham County, North Carolina (population approximately 280,000 at time of study). Patients/MethodsWe performed a retrospective analysis of data actively collected from three hospitals in Durham County during the surveillance period. ResultsA total of 987 patients were diagnosed with VTE, for an annual rate of 1.76 per 1000 individuals. Hospital‐associated VTE occurred in 167 hospitalized patients (16.9%) and 271 outpatients who were hospitalized within 90 days of diagnosis (27.5%). Annual incidence was 1.98 per 1000 Black individuals compared to 1.25 per 1000 White individuals (p < 0.0001), and Black individuals with VTE were younger than White individuals (p < 0.0001). Common risk factors included active cancer, prolonged immobility, and obesity, and approximately half were still taking anticoagulant therapy 1 year later. A total of 224 patients died by 1 year (28.5% of patients for whom outcomes could be confirmed), and Black patients were more likely to have recurrent VTE than White patients during the first 6 months following initial presentation (9.4% vs. 4.1%, p = 0.01). ConclusionsOngoing surveillance provides an effective strategy to identify patients with VTE and monitor treatment and outcomes. We demonstrated that hospital‐associated VTE continues to be a major contributor to the burden of VTE and confirmed the higher incidence of VTE in Black compared to White individuals.
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More From: Research and Practice in Thrombosis and Haemostasis
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