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A Visual Description of the Dissection of the Cerebral Surface Vasculature and Associated Meninges and the Choroid Plexus from Rat Brain
Published on: November 14, 2012
[Methamidophos intoxication: immediate and late neurological toxicity; two case reports]
Acta Clinica Belgica
|April 27, 1999
Summary
Methamidophos poisoning in farm laborers caused acute cholinergic and intermediate syndromes, followed by Organophosphorus Induced Delayed Neuropathy (OPIDN). All symptoms resolved within 18 months.
Area of Science:
- Toxicology
- Neuroscience
- Occupational Health
Background:
- Organophosphorus insecticides, like methamidophos, are widely used but can cause neurotoxicity.
- Organophosphorus Induced Delayed Neuropathy (OPIDN) is a known risk associated with some organophosphates.
Observation:
- Two farm laborers experienced acute cholinergic signs after cutaneous exposure to methamidophos.
- They subsequently developed proximal neurological deficits, followed by sensory and motor peripheral neuropathy.
Findings:
- The clinical presentation evolved through three distinct phases: acute anticholinesterasic syndrome, intermediate syndrome, and OPIDN.
- Neurological symptoms, including peripheral neuropathy, were consistent with methamidophos-induced delayed neurotoxicity.
- Complete resolution of all neurological signs occurred by the 18-month follow-up.
Implications:
- This case highlights the potential for methamidophos to cause a complex neurotoxic syndrome with delayed onset.
- Understanding the phased progression is crucial for accurate diagnosis and management of methamidophos poisoning.
- Occupational safety measures should emphasize preventing cutaneous exposure to methamidophos to mitigate neurotoxic risks.
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