Related Experiment Videos
[Septic encephalopathy. Diagnosis und therapy].
V Eggers1, A Schilling, W J Kox
1Klinik für Anaesthesiologie und operative Intensivmedizin, Universitätsklinikum Charité Campus Mitte, Humboldt-Universität, Berlin.
Der Anaesthesist
|April 26, 2003
Summary
Septic encephalopathy, a brain dysfunction in sepsis, is linked to higher mortality. Altered amino acid levels, particularly increased aromatic amino acids, correlate with disease severity and poor outcomes.
Area of Science:
- Neurology
- Critical Care Medicine
- Biochemistry
Context:
- Septic encephalopathy affects 23% of septic patients, increasing mortality risk.
- Symptoms include confusion, disorientation, and coma, often appearing early in sepsis.
- Severe hypotension is a significant factor in developing septic encephalopathy.
Purpose:
- To explore the mechanisms and contributing factors of septic encephalopathy.
- To investigate the role of amino acid imbalances in sepsis-induced brain dysfunction.
- To discuss potential therapeutic strategies for septic encephalopathy.
Summary:
- Sepsis-induced brain dysfunction involves inflammatory mediators, altered cerebral perfusion, and blood-brain barrier issues.
- Increased plasma and brain aromatic amino acids (phenylalanine, tryptophan) and decreased branched-chain amino acids are observed in septic shock.
- Tryptophan metabolite quinolinic acid may activate NMDA receptors, leading to neuronal damage via NO-synthase and PARS activation.
Impact:
- Identifies specific amino acid alterations as biomarkers for septic encephalopathy severity.
- Highlights the potential of targeting NMDA receptors, NO-synthase, and PARS for therapeutic interventions.
- Emphasizes the need for maintaining adequate perfusion pressure and preventing hypoxia/hypocapnia in managing septic encephalopathy.