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Updated: Aug 19, 2026
Severe Burn Injury in a Swine Model for Clinical Dressing Assessment
Published on: November 6, 2018
Plasma oxidative parameters and mortality in patients with severe burn injury
Cristiane Ritter1, Michael Andrades, Márcio Guerreiro
1Departamento de Bioquímica, Universidade Federal do Rio Grande do Sul, Rua Ramiro Barcelos, 2600 anexo, 90035-003, Porto Alegre, RS, Brazil.
Objective:
To determine xanthine oxidase and superoxide dismutase activities, lipid peroxidation, protein carbonylation, and total radical-trapping antioxidant parameter in survivors and nonsurvivors patients with severe burn injury.
Design And Setting:
Prospective, comparative observational study in an intensive care unit, burn division, in a trauma hospital.
Patients:
Twenty-five consecutive patients who met the established criteria for severe burn injury (total burn surface area of more than 30%).
Measurements And Results:
Plasma thiobarbituric acid reactive species and protein carbonyls levels were significantly higher in nonsurvivors than in survivors at 0 and 6 h. Elevated xanthine oxidase activity at 0 h was associated with adverse outcome after burn injury. In contrast, plasma superoxide dismutase activity and total radical-trapping antioxidant parameter did not differ significantly between nonsurvivors and survivors at any time point.
Conclusions:
For the first time we demonstrate the value of oxidative parameters, namely thiobarbituric acid reactive species, protein carbonyls, and xanthine oxidase activity, in identifying burn patients with a poor prognosis. Whether these parameters are merely markers of clinical course, or whether they signal specific deleterious effects of oxidative stress during the burn injury remains to be elucidated.
