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[EMG and evoked potentials in adrenomyeloneuropathy].
EEG-EMG Zeitschrift Fur Elektroenzephalographie, Elektromyographie Und Verwandte Gebiete
|June 1, 1985
Summary
Adrenoleukodystrophy was diagnosed in a patient with adrenocortical insufficiency, identified by elevated hexacosanoic acid. Peripheral nervous system involvement was significant, impacting nerve conduction and evoked potentials.
Area of Science:
- Neurology
- Endocrinology
- Biochemistry
Background:
- Adrenoleukodystrophy (ALD) is a rare genetic disorder affecting the adrenal glands and nervous system.
- ALD is characterized by the accumulation of very long-chain fatty acids (VLCFAs), particularly hexacosanoic acid.
- Peripheral nervous system involvement in ALD can present diagnostic challenges.
Observation:
- A 31-year-old patient presented with adrenocortical insufficiency and mild neurological symptoms.
- Diagnosis of adrenoleukodystrophy was confirmed by elevated plasma hexacosanoic acid levels.
- Electrophysiological studies revealed significantly reduced motor and sensory nerve conduction velocities in extremities.
Findings:
- Somatosensory evoked potentials showed peripheral reductions, but central sensory pathways could not be fully assessed.
- Visual and brainstem auditory evoked potentials exhibited slight prolongations.
- The findings suggest a variant of ALD with prominent peripheral nervous system involvement.
Implications:
- This case highlights the diagnostic challenges of ALD variants that predominantly affect the peripheral nervous system.
- Early electrophysiological assessment is crucial for identifying neurological involvement in ALD.
- Understanding these variations aids in accurate diagnosis and management of adrenoleukodystrophy.