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Journal of critical care · Feb 2015
Multicenter Study Observational StudyAssociation between serum total antioxidant capacity and mortality in severe septic patients.
- Leonardo Lorente, María M Martín, Teresa Almeida, Pedro Abreu-González, José Ferreres, Jordi Solé-Violán, Lorenzo Labarta, César Díaz, and Alejandro Jiménez.
- Intensive Care Unit, Hospital Universitario de Canarias, La Laguna, Santa Cruz de Tenerife, Spain. Electronic address: lorentemartin@msn.com.
- J Crit Care. 2015 Feb 1; 30 (1): 217.e7-12.
PurposeTotal antioxidant capacity (TAC) in severe septic patients has been analyzed in few studies with limited number of subjects. In addition, no association between TAC serum levels and mortality in patients with sepsis has been investigated. We aimed at assessing a possible relationship between TAC serum levels and mortality using a large cohort of patients with severe sepsis.MethodsWe performed an observational, prospective, multicenter study in 6 Spanish intensive care units. Serum levels of TAC were measured in a total of 213 patients with severe sepsis. End point was 30-day mortality.ResultsNonsurviving septic patients (n = 75) showed higher serum TAC levels (P = .006) than survivors (n = 138). Cox regression analysis showed that TAC serum levels were associated with 30-day survival (hazard ratio = 1.50, 95% confidence interval = 1.16-1.94, P = .002). Receiver operating characteristic analysis showed that the area under curve of TAC serum levels to predict 30-day survival was 0.61 (95% confidence interval = 0.545-0.680, P = .04).ConclusionsThe most relevant and new findings of our study, the largest cohort of septic patients providing data on circulating TAC levels so far, were that serum TAC levels are associated with mortality and could be used as biomarker to outcome prediction in severe septic patients.Copyright © 2014 Elsevier Inc. All rights reserved.
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