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Updated: Jun 12, 2026

Leveraging Turbidity and Thromboelastography for Complementary Clot Characterization
Published on: June 4, 2020
Dynamic microclot profiling: thromboelastography advances precision management in long COVID and myalgic
Shafaq Saleem1, Ahmad Hussain2, Muhammad Haroon1
1Department of Medicine, Rawalpindi Medical University, Rawalpindi.
Insights
Persistent microclots contribute to Long COVID and ME/CFS pathophysiology. Thromboelastography (TEG) shows promise for diagnosing these coagulation abnormalities, guiding future precision therapeutics.
Area of Science:
- Cardiovascular Science
- Hematology
- Immunology
Background:
- Long COVID and myalgic encephalomyelitis/chronic fatigue syndrome (ME/CFS) share overlapping symptoms.
- Emerging evidence suggests persistent fibrinoid microclots impair microcirculation in these conditions.
Purpose of the Study:
- To review the role of microclots in Long COVID and ME/CFS.
- To evaluate thromboelastography (TEG) as a diagnostic tool for these microclot-associated conditions.
Main Methods:
- Comprehensive literature review of biomedical databases.
- Analysis of studies reporting microclot prevalence and TEG profiles in Long COVID and ME/CFS patients.
Main Results:
- Microclots are prevalent in both Long COVID and ME/CFS.
- TEG analysis reveals increased clot strength and reduced fibrinolysis in Long COVID, indicating hypercoagulability.
- TEG interpretation challenges include preanalytical variability and lack of standardized protocols.
Conclusions:
- Persistent microclots are a key pathophysiological feature of Long COVID and ME/CFS.
- TEG offers a promising approach for detecting coagulation abnormalities and guiding treatment.
- Standardization of TEG protocols and integration with multiomics biomarkers are crucial for advancing precision therapeutics and improving patient outcomes.
Abstract:
Long COVID and myalgic encephalomyelitis/chronic fatigue syndrome (ME/CFS) share overlapping symptoms, and emerging evidence implicates persistent fibrinoid microclots in their pathophysiology, contributing to impaired microcirculation. This review explores the role of microclots and evaluates thromboelastography (TEG) as a potential diagnostic tool. A comprehensive literature review was conducted using major biomedical databases. Studies indicate microclots are prevalent in both conditions. Long COVID patients demonstrate a TEG profile of increased clot strength (maximum amplitude) and reduced fibrinolysis (LY30), suggesting a persistent hypercoagulable state. Despite its advantages in real-time assessment, TEG interpretation faces challenges from preanalytical variability and a lack of standardized protocols. Promising therapeutic trials, including anticoagulants (e.g., apixaban) and fibrinolytics (e.g., lumbrokinase), require further validation. Technological advancements like AI-driven TEG analysis and portable devices could improve diagnostic precision. In conclusion, persistent microclots are a key pathophysiological feature. TEG provides a promising, novel approach for detecting coagulation abnormalities and could guide treatment, but requires standardization in future clinical trials. Future research should integrate multiomics biomarkers for precision therapeutics to improve patient outcomes.
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