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Published on: June 4, 2020
Questions about COVID-19 associated coagulopathy: possible answers from the viscoelastic tests
Vittorio Pavoni1, Lara Gianesello2, Maddalena Pazzi1
1Emergency Department and Critical Care Area, Anesthesia and Intensive Care Unit, Santa Maria Annunziata Hospital, Bagno a Ripoli, Florence, Italy.
Insights
COVID-19 associated coagulopathy (CAC) presents unique clotting issues. Viscoelastic tests (VETs) offer dynamic insights into CAC, aiding clinicians in identifying hypercoagulable and hypofibrinolysis states in severe cases.
Area of Science:
- Hematology
- Infectious Diseases
- Critical Care Medicine
Background:
- Abnormal coagulation is common in COVID-19, correlating with prognosis.
- COVID-19 associated coagulopathy (CAC) involves a high risk of thromboembolism.
- Viscoelastic tests (VETs) provide dynamic clot formation data in critical care.
Purpose of the Study:
- To elucidate the characteristics of COVID-19 associated coagulopathy (CAC).
- To explore the utility of viscoelastic tests (VETs) in understanding CAC.
- To address unanswered questions regarding CAC through VETs analysis.
Main Methods:
- Analysis of viscoelastic tests (VETs) data.
- Utilizing thromboelastometry (ROTEM), thromboelastography (TEG), and Quantra Hemostasis Analyzer.
- Reviewing studies on COVID-19 associated coagulopathy (CAC).
Main Results:
- VETs provide dynamic insights into clot formation and dissolution in COVID-19 patients.
- VETs can identify hypercoagulable and hypofibrinolysis states in severe COVID-19.
- VETs offer valuable information for managing CAC.
Conclusions:
- Viscoelastic tests are crucial for understanding the complex coagulopathy in COVID-19.
- Further research using VETs is needed to fully characterize CAC.
- VETs aid in identifying prothrombotic states associated with severe COVID-19.
Abstract:
Abnormal coagulation parameters are often observed in patients with coronavirus disease 2019 (COVID-19) and the severity of derangement has been associated with a poor prognosis. The COVID-19 associated coagulopathy (CAC) displays unique features that include a high risk of developing thromboembolic complications. Viscoelastic tests (VETs), such as thromboelastometry (ROTEM), thromboelastography (TEG) and Quantra Hemostasis Analyzer (Quantra), provide "dynamic" data on clot formation and dissolution; they are used in different critical care settings, both in hemorrhagic and in thrombotic conditions. In patients with severe COVID-19 infection VETs can supply to clinicians more information about the CAC, identifying the presence of hypercoagulable and hypofibrinolysis states. In the last year, many studies have proposed to explain the underlying characteristics of CAC; however, there remain many unanswered questions. We tried to address some of the important queries about CAC through VETs analysis.
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