• Leonardo Lorente, María M Martín, Antonia Pérez-Cejas, Carmen Ferrer-Moure, Luis Ramos-Gómez, Jordi Solé-Violán, Juan J Cáceres, Alejandro Jiménez, and Agustín F González-Rivero.
• Intensive Care Unit, Hospital Universitario de Canarias, Ofra, s/n, La Laguna, 38320, Santa Cruz de Tenerife, Tenerife, Spain. lorentemartin@msn.com.
• Intern Emerg Med. 2022 Oct 1; 17 (7): 211321182113-2118.

AbstractFas 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.© 2022. The Author(s), under exclusive licence to Società Italiana di Medicina Interna (SIMI).

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