Abstract
Purpose
Due to a better safety profile, direct oral anticoagulants (DOACs) are increasingly prescribed for prevention of thromboembolic events. However, little is known about DOAC plasma concentrations in trauma patients upon hospital admission. Thus, we investigated the frequency and extent of DOAC possible over- and underdosing in trauma patients upon hospital admission.
Methods
In this single-center retrospective study, DOAC plasma concentrations of adult trauma patients were analyzed with specific calibrated anti-IIa (dabigatran) and anti-Xa (apixaban, edoxaban and rivaroxaban) tests within 4 h after hospital admission.
Results
A total of 210 trauma patients, admitted between 2019 and 2022, were included in the analyses. Low DOAC levels < 30 ng/mL were detected in 13.3% of the patients. In 7.1% of the patients, DOAC plasma levels ranged between 300–399 ng/mL and further 7.1% exhibited plasma concentrations > 400 ng/mL. The highest incidence of high to very high DOAC plasma concentration was observed for patients on rivaroxaban and dabigatran. A moderate correlation was observed between dabigatran plasma concentration and estimated glomerular filtration rate (rho = − 0.5338, p = 0.0003). For rivaroxaban no clear association between plasma concentration and liver or renal function could be detected. Patients on statins had significantly higher DOAC concentration in comparison with those not taking statins (153 (76–274) vs 108 (51–217) ng/mL, p = 0.046).
Conclusion
The current study revealed that patients on dabigatran and rivaroxaban were prone to higher DOAC plasma levels upon hospital admission in comparison with apixaban and edoxaban. DOAC plasma level measurement in trauma patients might be warranted due to unpredictively low or high plasma concentrations. However, the clinical impact of altered plasma levels on both, bleeding and thromboembolic events, remains to be determined by future studies.
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Data availability
The dataset analyzed in the current study are available from the corresponding author on reasonable request.
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We want to thank Dr. Christopher Lockie for his kind support in proofreading this article.
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H.S. has received honoraria for participation in advisory board meetings for Bayer Healthcare, Boehringer Ingelheim, Alexion and Octapharm. He has also received speaker fees from Haemonetics and Vifor, and study grants from CSL Behring. J.G. has received honoraria, research funding, and travel reimbursement from Alexion, Boehringer Ingelheim, CSL Behring, Johnson & Johnson, Instrumentation Laboratory, Mitsubishi Tanabe Pharma, Novo Nordisk, Octapharma, and Portola. No other external funding or competing interests declared.
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Ruoff, C., Schöchl, H., Fritsch, G. et al. DOAC plasma concentration upon hospital admission in a cohort of trauma patients. An observational real-life study. Eur J Trauma Emerg Surg 49, 2543–2551 (2023). https://doi.org/10.1007/s00068-023-02334-5
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DOI: https://doi.org/10.1007/s00068-023-02334-5