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Updated: Jul 29, 2025

Prehospital Thrombolysis: A Manual from Berlin
Published on: November 26, 2013
Antithrombotic therapy in the management of hospitalised patients with COVID-19
Ioannis Koulas1, Mark Goldin1,2, Sam Schulman3
1Institute of Health System Science, Feinstein Institutes for Medical Research, Northwell Health, Manhasset, NY, USA.
Insights
Hospitalized patients with COVID-19 face high risks of blood clots. This review summarizes guidelines on thromboprophylaxis to prevent these events in hospitalized and recently discharged COVID-19 patients.
Area of Science:
- Internal Medicine
- Hematology
- Infectious Diseases
Background:
- Hospitalized patients with COVID-19 have an elevated risk of thromboembolic events during hospitalization and post-discharge.
- Observational studies prompted numerous randomized controlled trials to determine effective thromboprophylaxis strategies.
Purpose of the Study:
- To review and summarize evidence-based guideline recommendations for managing antithrombotic therapy in COVID-19 patients.
- To provide a practical tool for hospital physicians managing COVID-19 patients' thromboprophylaxis.
Main Methods:
- Review of evidence-based guidelines from the International Society on Thrombosis and Haemostasis.
- Inclusion of a good clinical practice statement addressing areas with limited high-quality evidence.
Main Results:
- Guidelines provide recommendations for antithrombotic therapy during hospitalization and post-discharge for COVID-19 patients.
- A supplementary statement addresses practical considerations for managing thromboprophylaxis.
Conclusions:
- The summarized guidelines offer essential information for clinicians.
- This review serves as a quick reference for optimal thromboprophylaxis in COVID-19 patients.
Abstract:
Hospitalised patients with coronavirus disease 2019 (COVID-19) are at a significantly higher risk of having thromboembolic events while in hospital and in the immediate post-hospital discharge period. Based on early data from observational studies, multiple high quality randomised controlled trials have been conducted worldwide to evaluate optimal thromboprophylaxis regimens to reduce thromboembolism and other COVID-19-related adverse outcomes in hospitalised patients. The International Society on Thrombosis and Haemostasis has published evidence-based guideline recommendations using established methodology for the management of antithrombotic therapy of COVID-19 patients, both in-hospital and in the immediate post-hospital discharge period. A good clinical practice statement supplemented these guidelines based on topics for which there was no or limited high-quality evidence. This review summarises the main recommendations of these documents to serve as a quick access tool for hospital doctors to use in their everyday practice when treating COVID-19 patients.
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