Time-Dependent Association of Preinjury Anticoagulation on Traumatic Brain Injury-Induced Coagulopathy: A Retrospective, Multicenter Cohort Study.
Journal
Neurosurgery
ISSN: 1524-4040
Titre abrégé: Neurosurgery
Pays: United States
ID NLM: 7802914
Informations de publication
Date de publication:
24 Oct 2024
24 Oct 2024
Historique:
received:
03
04
2024
accepted:
26
08
2024
medline:
25
10
2024
pubmed:
25
10
2024
entrez:
24
10
2024
Statut:
aheadofprint
Résumé
The impact of preinjury anticoagulation on coagulation parameters over time after traumatic brain injury (TBI) has remained unclear. Based on the hypothesis that preinjury anticoagulation significantly influences the progression and persistence of TBI-induced coagulopathy, we retrospectively examined the association of preinjury anticoagulation with various coagulation parameters during the first 24 hours postinjury in 5 periods. Data from the Japanese registry of patients with TBI aged ≥65 years admitted between 2019 and 2021 were used. Time since injury was classified into 5 categories through a graphical analysis of coagulation parameters. We examined the association between preinjury anticoagulation and the platelet count, prothrombin time-international normalized ratio (PT-INR), activated partial thromboplastin time (APTT), D-dimer level, and fibrinogen level during each period by analysis of covariance using 10 clinical factors as confounding factors. Data from 545 patients and 795 blood tests were analyzed. The patients' mean age was 78.9 years, and 87 (16%) received anticoagulation therapy. The preinjury anticoagulation group had significantly greater Rotterdam computed tomography scores and poorer outcomes at discharge than the control group, with significantly lower D-dimer levels and higher fibrinogen levels. Analysis of covariance revealed significant associations between the D-dimer level and preinjury anticoagulation within 2 to 24 hours postinjury, APTT and preinjury anticoagulation within 1 to 24 hours, and PT-INR and preinjury anticoagulation throughout all periods up to 24 hours postinjury. Despite more severe TBI signs and poorer outcomes, the preinjury anticoagulation group had significantly lower D-dimer levels, especially within 2 to 24 hours postinjury. Thus, D-dimer levels during this period may not reliably represent TBI severity in patients receiving anticoagulation therapy before injury. Preinjury anticoagulation was also associated with an elevated PT-INR and prolonged APTT from early to 24 hours postinjury, highlighting the importance of aggressive anticoagulant reversal early after injury.
Sections du résumé
BACKGROUND AND OBJECTIVES
OBJECTIVE
The impact of preinjury anticoagulation on coagulation parameters over time after traumatic brain injury (TBI) has remained unclear. Based on the hypothesis that preinjury anticoagulation significantly influences the progression and persistence of TBI-induced coagulopathy, we retrospectively examined the association of preinjury anticoagulation with various coagulation parameters during the first 24 hours postinjury in 5 periods.
METHODS
METHODS
Data from the Japanese registry of patients with TBI aged ≥65 years admitted between 2019 and 2021 were used. Time since injury was classified into 5 categories through a graphical analysis of coagulation parameters. We examined the association between preinjury anticoagulation and the platelet count, prothrombin time-international normalized ratio (PT-INR), activated partial thromboplastin time (APTT), D-dimer level, and fibrinogen level during each period by analysis of covariance using 10 clinical factors as confounding factors.
RESULTS
RESULTS
Data from 545 patients and 795 blood tests were analyzed. The patients' mean age was 78.9 years, and 87 (16%) received anticoagulation therapy. The preinjury anticoagulation group had significantly greater Rotterdam computed tomography scores and poorer outcomes at discharge than the control group, with significantly lower D-dimer levels and higher fibrinogen levels. Analysis of covariance revealed significant associations between the D-dimer level and preinjury anticoagulation within 2 to 24 hours postinjury, APTT and preinjury anticoagulation within 1 to 24 hours, and PT-INR and preinjury anticoagulation throughout all periods up to 24 hours postinjury.
CONCLUSION
CONCLUSIONS
Despite more severe TBI signs and poorer outcomes, the preinjury anticoagulation group had significantly lower D-dimer levels, especially within 2 to 24 hours postinjury. Thus, D-dimer levels during this period may not reliably represent TBI severity in patients receiving anticoagulation therapy before injury. Preinjury anticoagulation was also associated with an elevated PT-INR and prolonged APTT from early to 24 hours postinjury, highlighting the importance of aggressive anticoagulant reversal early after injury.
Identifiants
pubmed: 39446739
doi: 10.1227/neu.0000000000003238
pii: 00006123-990000000-01405
doi:
Types de publication
Journal Article
Langues
eng
Sous-ensembles de citation
IM
Subventions
Organisme : Japan Society for the Promotion of Science, CSL Behring
ID : 21K18079
Informations de copyright
Copyright © 2024 The Author(s). Published by Wolters Kluwer Health, Inc. on behalf of the Congress of Neurological Surgeons.
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