Salmonella encephalopathy successfully treated with high-dose methylpredonisolone therapy

Area of Science:

• Pediatric Neurology
• Infectious Diseases
• Neuroimmunology

Background:

• Salmonella enterocolitis can lead to neurological complications.
• Salmonella encephalopathy is a rare but serious condition characterized by brain dysfunction.
• Elevated inflammatory cytokines are implicated in the pathogenesis of septic encephalopathy.

Purpose of the Study:

• To describe a case of Salmonella encephalopathy in a child.
• To investigate the role of inflammatory cytokines in the condition.
• To evaluate the efficacy of high-dose methylprednisolone treatment.

Main Methods:

• Clinical case presentation of a 7-year-old boy.
• Electroencephalography (EEG) and Magnetic Resonance Imaging (MRI) for brain assessment.
• Serum and cerebrospinal fluid (CSF) analysis for inflammatory cytokine levels (IL-6, IL-8, IL-10, IFN-γ).
• Stool specimen analysis for Salmonella typhimurium detection.

Main Results:

• The patient presented with severe consciousness disturbance following enterocolitis.
• EEG showed diffuse slow activity; brain MRI was normal.
• Elevated levels of IL-6, IL-8, IL-10, and IFN-γ were found in serum and CSF.
• Salmonella typhimurium was identified in stool.
• The patient showed rapid improvement with high-dose methylprednisolone therapy.

Conclusions:

• The case highlights Salmonella-associated encephalopathy with features of septic encephalopathy.
• Hypercytokinemia plays a significant role in the pathophysiology of Salmonella encephalopathy.
• High-dose methylprednisolone is a potentially effective treatment for hypercytokine-mediated Salmonella encephalopathy.