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Myoclonic status epilepticus following repeated oral ingestion of colloidal silver

S M Mirsattari1, R R Hammond, M D Sharpe

  • 1Department of Clinical Neurological Sciences, University of Western Ontario, London, Ontario, Canada.

Neurology
|April 28, 2004
PubMed

Insights

Daily colloidal silver use led to severe neurologic damage, including myoclonic status epilepticus and coma. This case highlights the irreversible neurotoxicity and poor outcomes associated with silver product ingestion.

Area of Science:

  • Neurology
  • Toxicology

Background:

  • Colloidal silver is marketed for various health benefits, but its safety profile, particularly with chronic ingestion, is not well-established.
  • Neurologic adverse effects from heavy metal exposure are a significant concern in clinical toxicology.

Observation:

  • A 71-year-old man presented with myoclonic status epilepticus and coma after 4 months of daily colloidal silver ingestion.
  • Elevated silver levels were detected in his plasma, erythrocytes, and cerebrospinal fluid (CSF).

Findings:

  • The patient experienced irreversible neurologic toxicity, progressing to a persistent vegetative state.
  • Plasmapheresis did not reverse the severe neurological damage.
  • The patient ultimately died 5.5 months after symptom onset.

Implications:

  • This case underscores the potential for severe, irreversible neurotoxicity from chronic colloidal silver consumption.
  • Clinicians should be aware of the risks associated with colloidal silver products and inquire about their use in patients with unexplained neurological symptoms.
  • Further research is warranted to understand the mechanisms of silver neurotoxicity and establish safe usage guidelines, if any.

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