Abstract
Fas is one of the main death receptors of the extrinsic pathway of apoptosis. A study has reported higher Fas expression in brain samples of non-surviving TBI patients than in survivors. The objective of our current study was to determine whether there is an association between Fas concentrations in blood and mortality of isolated TBI patients. Patients with severe TBI [< 9 points in Glasgow Coma Scale (GCS)] and isolated TBI (< 10 non-cranial aspects points on the Injury Severity Score) were included from 5 Intensive Care Units. We measured serum Fas concentrations on the day of TBI. Non-surviving (n = 23) compared to surviving patients (n = 57) had higher age (p = 0.01), lower GCS (p = 0.001), higher APACHE-II score (p < 0.001), higher ICP (p = 0.01), higher CT findings with high risk of death (p = 0.02) and higher serum Fas concentrations (p < 0.001). We found in regression analyses an association between serum Fas levels and mortality of TBI patients after controlling for CT findings, age and CGS (OR = 1.006; 95% CI 1.001–1.011; p = 0.02), and after controlling for CT findings, ICP and APACHE-II (OR = 1.007; 95% CI 1.001–1.012; p = 0.02). Thus, the most interesting and novel finding in this study is the association between high blood Fas concentrations and mortality in TBI patients.
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The datasets generated during and/or analyzed during the current study are available from the corresponding author on reasonable request.
Abbreviations
- TBI:
-
Traumatic brain injury
- GCS:
-
Glasgow Coma Scale
- ISS:
-
Injury Severity Score
- PaO2 :
-
Pressure of arterial oxygen
- FIO2 :
-
Fraction of inspired oxygen
- aPTT:
-
Activated partial thromboplastin time
- APACHE II:
-
Acute Physiology and Chronic Health Evaluation
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Acknowledgements
This study was supported by a grant from Instituto de Salud Carlos III (PI-18-00500) (Madrid, Spain) and co-financed with Fondo Europeo de Desarrollo Regional (FEDER). The funders had no role in study design, data collection and analysis, decision to publish, or preparation of the manuscript.
Funding
This study was supported by a grant from Instituto de Salud Carlos III (PI-18–00500) (Madrid, Spain) and co-financed with Fondo Europeo de Desarrollo Regional (FEDER).
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LL conceived, designed and coordinated the study, participated in acquisition of data, and drafted the manuscript. MMM, LRG, JSV and JJC participated in acquisition of data and provided useful suggestions. APC, CFM and AFGR carried out serum Fas levels determinations and provided useful suggestions. AJ interpreted the data and provided useful suggestions. All authors read and approved the final version of the manuscript.
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The Institutional Board of the 5 Spanish hospitals that participated in this observational and prospective study approved the protocol study: H. General of La Palma, H. Universitario de Canarias of La Laguna, H. Insular of Las Palmas de Gran Canaria, H. Universitario Nuestra Señora de Candelaria of Santa Cruz de Tenerife and H. Universitario Dr. Negrín of Las Palmas de Gran Canaria.
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Lorente, L., Martín, M.M., Pérez-Cejas, A. et al. High blood Fas concentrations in non-survivor patients with traumatic brain injury. Intern Emerg Med 17, 2113–2118 (2022). https://doi.org/10.1007/s11739-022-03023-8
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DOI: https://doi.org/10.1007/s11739-022-03023-8