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Metronidazole Induced Encephalopathy.

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Metronidazole can cause neurological toxicity, including seizures and altered sensorium. This case highlights reversible brain changes in the dentate nuclei and corpus callosum associated with metronidazole-induced encephalopathy.

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Area of Science:

  • Neurology
  • Pharmacology
  • Infectious Diseases

Background:

  • Metronidazole is a widely used antimicrobial for anaerobic bacterial and protozoal infections.
  • Neurological toxicity is a recognized, albeit concerning, adverse effect of metronidazole.
  • Increasing case reports underscore the importance of recognizing metronidazole-induced neurotoxicity.

Observation:

  • A 32-year-old male with chronic alcoholism and liver abscesses presented with seizures, peripheral neuropathy (burning feet), and altered mental status.
  • The patient had a history of 6 weeks of metronidazole treatment.
  • Clinical presentation suggested a potential neurological adverse event related to medication.

Findings:

  • Magnetic Resonance Imaging (MRI) of the brain revealed characteristic abnormalities.
  • Specific findings included involvement of the dentate nuclei and the splenium of the corpus callosum.
  • These radiological findings are typical of metronidazole-induced encephalopathy (MIE).

Implications:

  • This case highlights the potential for metronidazole to cause significant, yet reversible, neurological toxicity.
  • Early recognition and diagnosis of metronidazole-induced encephalopathy are crucial for prompt management.
  • Awareness among clinicians is vital, especially in patients with risk factors like chronic alcoholism.