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Venous thromboembolism (VTE) prevention and diagnosis in COVID-19: Practice patterns and outcomes at 33 hospitals
Journal article   Open access   Peer reviewed

Venous thromboembolism (VTE) prevention and diagnosis in COVID-19: Practice patterns and outcomes at 33 hospitals

Anna L Parks, Andrew D Auerbach, Jeffrey L Schnipper, Amanda Bertram, Sun Y Jeon, Bridget Boyle, Margaret C Fang, Shrirang M Gadrey, Zishan K Siddiqui, Daniel J Brotman, …
PloS one, Vol.17(5), e0266944
2022
DOI: 10.1371/journal.pone.0266944
PMCID: PMC9071149
PMID: 35511940
url
https://doi.org/10.1371/journal.pone.0266944View
Published (Version of record) Open Access

Abstract

Early reports of increased thrombosis risk with SARS-CoV-2 infection led to changes in venous thromboembolism (VTE) management. Real-world data on the prevalence, efficacy and harms of these changes informs best practices. Define practice patterns and clinical outcomes related to VTE diagnosis, prevention, and management in hospitalized patients with coronavirus disease-19 (COVID-19) using a multi-hospital US sample. In this retrospective cross-sectional study of 1121 patients admitted to 33 hospitals, exposure was dose of anticoagulant prescribed for VTE prophylaxis (standard, intensified, therapeutic), and primary outcome was VTE (pulmonary embolism [PE] and deep vein thrombosis [DVT]); secondary outcomes were PE, DVT, arterial thromboembolism (ATE), and bleeding events. Multivariable logistic regression models accounting for clustering by site and adjusted for risk factors were used to estimate odds ratios (ORs). Inverse probability weighting was used to account for confounding by indication. 1121 patients (mean age 60 ± 18, 47% female) admitted with COVID-19 between February 2, 2020 and December 31, 2020 to 33 US hospitals were included. Pharmacologic VTE prophylaxis was prescribed in 86%. Forty-seven patients (4.2%) had PE, 51 (4.6%) had DVT, and 23 (2.1%) had ATE. Forty-six patients (4.1%) had major bleeding and 46 (4.1%) had clinically relevant non-major bleeding. Compared to standard prophylaxis, adjusted odds of VTE were 0.67 (95% CI 0.21-2.1) with no prophylaxis, 1.0 (95% CI 0.06-17) with intensified, and 3.0 (95% CI 0.89-10) with therapeutic. Adjusted odds of bleeding with no prophylaxis were 5.6 (95% CI 3.0-11) and 5.3 (95% CI 3.0-10) with therapeutic (no events on intensified dosing). Therapeutic anticoagulation was associated with a 3-fold increased odds of VTE and 5-fold increased odds of bleeding. While higher bleeding rates with high-intensity prophylaxis were likely due to full-dose anticoagulation, we conclude that high thrombosis rates were due to clinical concern for thrombosis before formal diagnosis.
Adult Aged Anticoagulants COVID-19 Cross-Sectional Studies Female Hemorrhage - epidemiology Hospitals Humans Male Middle Aged Pulmonary Embolism - drug therapy Pulmonary Embolism - epidemiology Pulmonary Embolism - prevention & control Retrospective Studies SARS-CoV-2 Venous Thromboembolism - drug therapy Venous Thromboembolism - epidemiology Venous Thromboembolism - prevention & control

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