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Methomyl poisoning presenting with decorticate posture and cortical blindness.
1Department of Neurology, Stroke Center, Changhua Christian Hospital , Taiwan.
Neurology International
|April 19, 2014
Summary
Methomyl pesticide poisoning can cause severe neurological issues, including cortical blindness and decorticate posture. Prompt treatment may resolve visual symptoms but not all motor deficits.
Area of Science:
- Neuroscience
- Toxicology
- Clinical Neurology
Background:
- Methomyl is a widely used agricultural pesticide with known systemic toxicity.
- Neurological effects of methomyl intoxication remain poorly understood.
- This case study investigates the neurological manifestations of methomyl poisoning.
Observation:
- A 61-year-old man presented with altered mental status after ingesting liquid methomyl.
- Initial symptoms included unstable vital signs, followed by regained consciousness with irregular posture.
- Neurological examination revealed cortical blindness and decorticate posture.
Findings:
- Cerebral MRI showed bilateral occipital lesions and putaminal abnormalities.
- Treatment with saline, aspirin, and piracetam resolved cortical blindness.
- Decorticate posture persisted despite treatment, with MRI showing lesion resolution.
Implications:
- Methomyl poisoning can lead to specific cerebral lesions affecting vision and motor control.
- Early clinical recognition and supportive treatment are crucial for managing methomyl intoxication.
- This case provides insights into the neurological sequelae and potential treatment directions for methomyl poisoning.
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