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Electrophysiological profile in arsenic neuropathy
1Department of Neurology, University of Alabama, Birmingham 35294.
Journal of Neurology, Neurosurgery, and Psychiatry
|December 1, 1991
Summary
Arsenic neuropathy primarily affects sensory nerves, showing marked conduction abnormalities. Motor nerve involvement is moderate, consistent with axonal degeneration confirmed by nerve biopsy.
Area of Science:
- Neurology
- Toxicology
- Nerve Diseases
Background:
- Arsenic exposure can cause peripheral neuropathy.
- Electrophysiological studies are crucial for diagnosing nerve damage.
Purpose of the Study:
- To investigate the electrophysiological characteristics of arsenic neuropathy.
- To correlate nerve conduction findings with nerve biopsy results.
Main Methods:
- Electrophysiological studies including nerve conduction studies (NCS) and needle electromyography (EMG) were conducted.
- Sural nerve biopsy was performed for histological confirmation.
Main Results:
- Marked abnormalities in sensory nerve conduction were observed.
- Moderate abnormalities were found in motor nerve conduction.
- Nerve conduction and EMG findings indicated axonal degeneration.
Conclusions:
- Arsenic neuropathy predominantly impacts sensory nerve function.
- Axonal degeneration is the underlying pathology in arsenic-induced neuropathy.