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Updated: Sep 29, 2025

Experimental and Imaging Techniques for Examining Fibrin Clot Structures in Normal and Diseased States
Published on: April 1, 2015
The Composition and Physical Properties of Clots in COVID-19 Pathology
Sierk Dauwerse1, Hugo Ten Cate2,3,4, Henri M H Spronk1,2,3
1Department of Biochemistry, Cardiovascular Research Institute Maastricht (CARIM), Maastricht University, 6200 MD Maastricht, The Netherlands.
Insights
Rotational ThromboElastoMetry (ROTEM) shows promise in predicting outcomes for severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) patients. This review explores ROTEM
Area of Science:
- Coagulation and Thrombosis Research
- Infectious Disease Pathophysiology
Background:
- Hemostasis dysregulation can cause bleeding or thrombosis.
- COVID-19 patients exhibit a hypercoagulable state, increasing thrombotic risk.
- Routine coagulation assays are insufficient for predicting thrombotic events in COVID-19.
Purpose of the Study:
- To review the utility of ROtational ThromboElastoMetry (ROTEM) in COVID-19 patients.
- To focus on interpreting ROTEM clot formation curves in relation to COVID-19 coagulopathy.
- To introduce novel ROTEM parameters for improved patient outcome prediction.
Main Methods:
- Review of existing literature on ROTEM in COVID-19.
- Analysis of ROTEM clot formation curve symmetry.
- Introduction and discussion of new ROTEM parameters.
Main Results:
- ROTEM is a promising tool for predicting outcomes in hospitalized COVID-19 patients.
- Specific ROTEM curve characteristics correlate with coagulopathy in severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) infection.
- New ROTEM parameters may enhance differentiation of COVID-19 patient outcomes.
Conclusions:
- ROTEM offers valuable insights into COVID-19-associated coagulopathy.
- ROTEM may improve the prediction of thrombotic events and patient outcomes in COVID-19.
- Further research into novel ROTEM parameters is warranted.
Abstract:
Hemostasis is a finely tuned process of which dysregulation can lead either to bleeding or thrombotic complications. The latter is often caused by the hypercoagulable state as it is also seen in patients with severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) infection, i.e., in COVID-19 patients. COVID-19 patients requiring hospitalization often suffer from thrombotic events that could not be predicted using routine coagulation assays. Recently, several studies have reported ROtational ThromboElastoMetry (ROTEM) as a promising tool to predict outcomes in COVID-19 patients. In this review we give an overview of ROTEM with a particular focus on the interpretation of the symmetrical clot formation curve in relation to coagulopathy in COVID-19 patients. Furthermore, we have introduced new parameters that might help to better distinguish between COVID-19 patients and outcomes.
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