ArticleBlood advances2022
American Society of Hematology living guidelines on the use of anticoagulation for thromboprophylaxis in patients with COVID-19: January 2022 update on the use of therapeutic-intensity anticoagulation in acutely ill patients.
Article in Blood advances, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 39 papers, 3 of them syntheses that pooled it.
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39 citing papers in PubMed, 3 syntheses or guidelines pooled it, 70 citations in OpenAlex.
- American Society of Hematology living guidelines on use of anticoagulation for thromboprophylaxis for patients with COVID-19: executive summary.Blood advances · 2025Guideline
- Effectiveness and safety of rivaroxaban for anticoagulation therapy in COVID-19: A meta-analysis of randomized controlled trials.Saudi medical journal · 2024Pooled it
- Chronic Anticoagulation in Patients with Atrial Fibrillation and COVID-19: A Systematic Review and Meta-Analysis.Arquivos brasileiros de cardiologia · 2024Pooled it
- Low-molecular-weight heparin for the prevention of clinical worsening in severe non-critically ill COVID-19 patients: a joint analysis of two randomized controlled trials.Internal and emergency medicine · 2024Trial
- Predictors of venous thromboembolic events in hospitalized patients with COVID-19.Journal of thrombosis and thrombolysis · 2025Article
- Patterns of Prophylactic Anticoagulation Among Patients Hospitalized for COVID-19: An Analysis of the American Heart Association COVID-19 Cardiovascular Disease Registry.Journal of the American Heart Association · 2025Article
- Scoping review about pathogenesis, risk factors, and treatment of venous and arterial thrombosis in coronavirus infection.Frontiers in cardiovascular medicine · 2025Review
- Review
- Converting IMPROVE bleeding and VTE risk assessment models into a fast-and-frugal decision tree for optimal hospital VTE prophylaxis.Blood advances · 2024Article
- COVID-19 therapeutics.Clinical microbiology reviews · 2024Review
- Which are the optimal thromboprophylaxis strategies for hospitalized patients with COVID-19? current controversies.Vascular · 2024Review
- Barriers to and facilitators of living guidelines use in low-income and middle-income countries: a scoping review.BMJ open · 2024Article
- Association between antithrombotic therapy and mortality in patients hospitalized for COVID‑19.Thrombosis journal · 2024Article
- AMMI Canada Practice Point: Updated recommendations for treatment of adults with symptomatic COVID-19 in 2023-2024.Journal of the Association of Medical Microbiology and Infectious Disease Canada = Journal officiel de l'Association pour la microbiologie medicale et l'infectiologie Canada · 2024Article
- Estrogen-based hormonal therapy and the risk of thrombosis in COVID-19 patients.European journal of haematology · 2023Article
- A Delphi consensus on the management of anticoagulation in the COVID-19 pandemic: the MONACO study.Cardiovascular diagnosis and therapy · 2023Review
- Thromboprophylaxis in hospitalized and nonhospitalized medical patients: what's new?Blood advances · 2023Article
- Anticoagulant therapy in COVID-19: A narrative review.Clinical and translational science · 2023Review
- Effects of Different Anticoagulation Doses on Moderate-to-Severe COVID-19 Pneumonia With Hypoxemia.Cureus · 2023Article
- Antithrombotic therapy in patients with COVID-19: indications, pharmacotherapy and controversy.Stroke and vascular neurology · 2023Article
Corrections and comments
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Authors and funding
46 authors at 20 institutions in 11 countries.
Funding
Abstract
backgroundCOVID-19-related acute illness is associated with an increased risk of venous thromboembolism (VTE).
objectiveThese evidence-based guidelines from the American Society of Hematology (ASH) are intended to support patients, clinicians, and other health care professionals in making decisions about the use of anticoagulation in patients with COVID-19.
methodsASH formed a multidisciplinary guideline panel that included patient representatives and applied strategies to minimize potential bias from conflicts of interest. The McMaster University GRADE Centre supported the guideline development process and performed systematic evidence reviews (through November 2021). The panel prioritized clinical questions and outcomes according to their importance for clinicians and patients. The panel used the Grading of Recommendations Assessment, Development and Evaluation (GRADE) approach to assess evidence and make recommendations, which were subject to public comment. This is an update to guidelines published in February 2021 as part of the living phase of these guidelines.
resultsThe panel made one additional recommendation. The panel issued a conditional recommendation in favor of therapeutic-intensity over prophylactic-intensity anticoagulation in patients with COVID-19-related acute illness who do not have suspected or confirmed VTE. The panel emphasized the need for an individualized assessment of risk of thrombosis and bleeding. The panel also noted that heparin (unfractionated or low molecular weight) may be preferred because of a preponderance of evidence with this class of anticoagulants.
conclusionThis conditional recommendation was based on very low certainty in the evidence, underscoring the need for additional, high-quality, randomized controlled trials comparing different intensities of anticoagulation in patients with COVID-19-related acute illness.
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