Coagulation disorders in coronavirus infected patients: COVID-19, SARS-CoV-1, MERS-CoV and lessons from the past
Related Experiment Video
Updated: Dec 23, 2025

Author Spotlight: Advancements in Multiplex Detection of Respiratory Viruses
Published on: November 10, 2023
Dimitrios Giannis1, Ioannis A Ziogas2, Panagiota Gianni3
1Institute of Health Innovations and Outcomes Research, The Feinstein Institutes for Medical Research, Manhasset, NY 11030, USA; Surgery Working Group, Society of Junior Doctors, Athens, Greece.
Insights
The COVID-19 pandemic, caused by SARS-CoV-2, presents a significant risk of venous thromboembolism in hospitalized patients. Coagulation disorders are emerging as a critical concern in COVID-19 patients.
Area of Science:
- Infectious Diseases
- Hematology
- Critical Care Medicine
Background:
- The novel severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) has caused a global pandemic (COVID-19).
- COVID-19 is highly transmissible, with severe cases reported in 16% of hospitalized patients.
- Acutely ill COVID-19 patients face an increased risk of venous thromboembolism.
Purpose of the Study:
- To highlight the importance of coagulation disorders in COVID-19 patients.
- To review data from previous coronavirus epidemics (SARS-CoV-1, MERS-CoV) regarding thrombotic complications.
- To underscore the emerging issue of thrombotic complications in COVID-19.
Main Methods:
- Review of preliminary clinical and laboratory findings in COVID-19 patients.
- Analysis of data from previous coronavirus outbreaks (SARS-CoV-1, MERS-CoV).
- Synthesis of current understanding of coagulation disorders in COVID-19.
Main Results:
- COVID-19 patients exhibit potential coagulation abnormalities, including thrombocytopenia, elevated D-dimer, prolonged prothrombin time, and disseminated intravascular coagulation.
- Thrombotic complications are increasingly recognized as a significant issue in COVID-19.
- Previous coronavirus epidemics (SARS-CoV-1, MERS-CoV) also showed associations with thrombotic events.
Conclusions:
- Coagulation disorders are a critical aspect of COVID-19 pathogenesis and clinical presentation.
- Understanding thrombotic risks in COVID-19 is crucial for patient management.
- Further research is needed to fully elucidate the spectrum of coagulation abnormalities in COVID-19.
Abstract:
Coronavirus disease 2019 (COVID-19) or severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2), a novel coronavirus strain disease, has recently emerged in China and rapidly spread worldwide. This novel strain is highly transmittable and severe disease has been reported in up to 16% of hospitalized cases. More than 600,000 cases have been confirmed and the number of deaths is constantly increasing. COVID-19 hospitalized patients, especially those suffering from severe respiratory or systemic manifestations, fall under the spectrum of the acutely ill medical population, which is at increased venous thromboembolism risk. Thrombotic complications seem to emerge as an important issue in patients infected with COVID-19. Preliminary reports on COVID-19 patients' clinical and laboratory findings include thrombocytopenia, elevated D-dimer, prolonged prothrombin time, and disseminated intravascular coagulation. As the pandemic is spreading and the whole picture is yet unknown, we highlight the importance of coagulation disorders in COVID-19 infected patients and review relevant data of previous coronavirus epidemics caused by the severe acute respiratory syndrome coronavirus 1 (SARS-CoV-1) and the Middle East Respiratory Syndrome coronavirus (MERS-CoV).
Related Concept Videos
Disorders of Hemostasis
Thromboembolic Disorders
Two factors primarily cause thromboembolic conditions.
Coagulation
Coagulation
During the coagulation phase, clotting factors, or procoagulants, play a vital role in initiating and progressing the coagulation cascade. This cascade is a series of reactions...
Anticoagulant Drugs: Low-Molecular-Weight Heparins
Anticoagulant Drugs: Vitamin K Antagonists and Direct Oral Anticoagulants
Warfarin, a prominent vitamin K antagonist family member, exerts its effect by inhibiting the enzyme VKORC1 (vitamin K epoxide reductase complex 1). By hindering this enzyme, warfarin...
Introduction to Hemostasis
The three phases of hemostasis involve many clotting factors present in plasma and several substances released by platelets and injured tissue cells. It is a fast, localized,...

