[Selenium metabolism in patients with severe multiple trauma].

Area of Science:

• Biochemistry
• Trauma Medicine
• Critical Care

Context:

• Nosocomial pneumonia is a significant complication in severe multiple trauma patients.
• Trauma severity and blood loss volume are critical factors influencing patient outcomes.
• Oxidative stress plays a role in the development of complications following severe trauma.

Purpose:

• To investigate the relationship between serum selenium levels and the risk of developing nosocomial pneumonia in patients with severe multiple trauma.
• To assess the influence of trauma severity and blood loss volume on this relationship.
• To evaluate serum selenium concentration as a potential early prognostic marker for infectious pulmonary complications.

Summary:

• Serum selenium concentration was measured in 40 severe multiple trauma patients, divided into groups with and without pneumonia.
• Significantly lower selenium levels and a lower antioxidant index were observed in patients who developed pneumonia, particularly within the first 7 days post-trauma.
• Both severe trauma and substantial blood loss were associated with decreased serum selenium and increased oxidative stress.

Impact:

• Serum selenium levels can be a valuable early prognostic indicator for infectious pulmonary complications in severe multiple trauma.
• Findings support the potential use of selenium supplementation for early prophylaxis in at-risk trauma patients.
• This research contributes to understanding the biochemical pathways involved in trauma-induced immune dysfunction and infection risk.