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Updated: May 11, 2026

Leveraging Turbidity and Thromboelastography for Complementary Clot Characterization
Published on: June 4, 2020
Dabigatran-associated subdural hemorrhage: using thromboelastography (TEG(®)) to guide decision-making
Ron Neyens1, Nicole Bohm, Madelyne Cearley
1Department of Pharmacy, Medical University of South Carolina, Charleston, SC, USA.
Managing bleeding emergencies in patients on novel oral anticoagulants like dabigatran is challenging. Thromboelastography (TEG®) may offer valuable insights into clot dynamics for timely interventions.
Area of Science:
- Neurology
- Hematology
- Pharmacology
Background:
- Novel oral anticoagulants (NOACs), such as dabigatran, pose management challenges during hemorrhagic emergencies.
- Assessing coagulation status in patients on NOACs requiring urgent procedures can be complex.
Observation:
- An 84-year-old male on dabigatran presented with a subdural hematoma necessitating neurosurgical intervention.
- Routine coagulation assays, including thrombin time (TT), were prolonged.
- Factor VIII Inhibitor Bypassing Activity (FEIBA) did not normalize TT.
Findings:
- Thromboelastography (TEG®) provided real-time assessment of clot dynamics.
- A subdural drain was safely inserted despite a prolonged TT.
- TEG® may offer a more comprehensive view of hemostasis than TT alone.
Implications:
- Exclusive reliance on TT may delay critical interventions in patients on dabigatran.
- TEG® could be a valuable tool for managing hemostasis in dabigatran patients during emergent procedures.
- This case highlights the potential utility of advanced coagulation monitoring in NOAC-related bleeding.
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