Heavy metal chelation in neurotoxic exposures
David H Jang1, Robert S Hoffman
1Department of Emergency Medicine, New York University School of Medicine, Bellevue Hospital Center, New York, NY, USA. jangd01@nyumc.org
Neurologic Clinics
|August 2, 2011
Summary
Metal toxicity can cause subtle nervous system effects. Diagnosis and treatment of metal poisoning rely on history, examination, and testing, with a focus on chelation therapy.
Area of Science:
- Toxicology
- Environmental Health
- Neuroscience
Background:
- Essential metals (e.g., iron, copper) are vital for life.
- Non-essential metals (e.g., lead, arsenic) can cause toxicity.
- Metal intoxication often presents with systemic effects, particularly neurological.
Purpose of the Study:
- To review the diagnosis and management of metal intoxication.
- To discuss the appropriate and inappropriate use of chelation therapy.
Main Methods:
- Clinical history and physical examination.
- Laboratory metal testing.
- Review of chelation therapy principles and applications.
Main Results:
- Metal poisoning diagnosis is challenging but achievable.
- Chelation is a key treatment modality for metal intoxication.
- Misuse of chelation can lead to adverse outcomes.
Conclusions:
- Accurate diagnosis of metal poisoning is crucial.
- Judicious use of chelation therapy is essential for effective management.
- Understanding metal toxicology guides clinical practice.
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