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Clot Waveform Analysis: a potential tool in venous thrombosis assessment?
Annales De Biologie Clinique
|February 19, 2026
Summary
Clot Waveform Analysis (CWA) shows potential for detecting hypercoagulability in venous thrombosis patients. However, low sensitivity limits its use as a universal screening tool for thrombotic conditions.
Area of Science:
- Hematology
- Thrombosis Research
- Diagnostic Hemostasis
Background:
- Clot Waveform Analysis (CWA) is understudied in thrombotic conditions.
- Hypercoagulability is a key factor in venous thrombosis.
- Evaluating novel diagnostic markers for thrombosis is crucial.
Purpose of the Study:
- To assess the efficacy of Clot Waveform Analysis (CWA) parameters in identifying hypercoagulability associated with venous thrombosis.
- To compare the performance of different reagents in CWA for thrombosis detection.
Main Methods:
- A case-control study involving 50 venous thrombosis patients and 100 healthy controls.
- Analysis of Clot Waveform Analysis (CWA) parameters (Max1, Max2, Min2) using activated partial thromboplastin time (aPTT) and prothrombin time (PT) reagents on an ACL TOP 350 analyzer.
- Receiver Operating Characteristic (ROC) curve analysis to determine diagnostic performance.
Main Results:
- CWA parameters were significantly higher in patients with venous thrombosis compared to controls across tested reagents.
- Specific CWA parameters demonstrated varying degrees of sensitivity and specificity, with some thresholds being non-discriminatory.
- SynthASil reagent showed higher diagnostic potential for certain CWA parameters compared to SynthAFax and RecombiPlasTin.
Conclusions:
- Clot Waveform Analysis (CWA) parameters can indicate hypercoagulability in venous thrombosis.
- The diagnostic utility of CWA for venous thrombosis is reagent-dependent.
- Low sensitivity of current CWA parameters restricts its application as a standalone screening test for hypercoagulability in thrombosis.
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