Brain injury · 2025
A prediction model of adenosine diphosphate inhibition among traumatic brain injury patients.
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Smith Caitlyn J, Howard Susanna D, Arena John D, Ghenbot Yohannes G, Ali Zarina S, Petrov Dmitry, Kumar Monisha A, Schuster James M
Аннотация
INTRODUCTION: Coagulopathy in the setting of traumatic brain injury (TBI) increases the risk of poor outcomes. Thromboelastography with platelet mapping (TEG-PM) provides a dynamic assessment of clotting parameters including adenosine diphosphate (ADP) inhibition and can guide antiplatelet reversal.
METHODS: A cross-sectional study of a single Level I Trauma Center traumatic brain injury database from February 2015 to March 2024 was conducted to develop a prediction model of ADP inhibition. Included patients had evidence of traumatic intracranial hemorrhage on CT at the time of presentation and underwent TEG-PM testing. Patients with a history of antiplatelet or anticoagulant use were excluded. Significant ADP inhibition was defined as ≥ 60%.
RESULTS: 485 patients were included. Patients with significant ADP inhibition were younger and more likely to have a severe head injury (Glasgow Coma Scale 3-8). In a multivariate logistic regression model including age and head injury severity as independent variables, severe head injury significantly increased the likelihood of ADP inhibition (odds ratio 2.14, 95% confidence interval 1.28-3.58).
CONCLUSION: The observation that severe head injury was significantly associated with ADP inhibition could help identify patients at risk for platelet dysfunction in settings without TEG-PM.
METHODS: A cross-sectional study of a single Level I Trauma Center traumatic brain injury database from February 2015 to March 2024 was conducted to develop a prediction model of ADP inhibition. Included patients had evidence of traumatic intracranial hemorrhage on CT at the time of presentation and underwent TEG-PM testing. Patients with a history of antiplatelet or anticoagulant use were excluded. Significant ADP inhibition was defined as ≥ 60%.
RESULTS: 485 patients were included. Patients with significant ADP inhibition were younger and more likely to have a severe head injury (Glasgow Coma Scale 3-8). In a multivariate logistic regression model including age and head injury severity as independent variables, severe head injury significantly increased the likelihood of ADP inhibition (odds ratio 2.14, 95% confidence interval 1.28-3.58).
CONCLUSION: The observation that severe head injury was significantly associated with ADP inhibition could help identify patients at risk for platelet dysfunction in settings without TEG-PM.