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Krabbe disease: neurophysiologic studies and MRI correlations.
Aatif M Husain1, Maha Altuwaijri, Mohammed Aldosari
1Department of Medicine (Neurology), Duke University, Durham, USA. Aatif.Husain@duke.edu
Neurology
|August 25, 2004
Summary
Neurophysiologic studies reveal distinct patterns in Krabbe disease (KD) patients. Abnormalities correlate with MRI-assessed disease severity, aiding in objective assessment of this rare leukodystrophy.
Area of Science:
- Pediatric Neurology
- Neuroscience
- Medical Imaging
Background:
- Krabbe disease (KD) is a rare, inherited leukodystrophy primarily affecting infants.
- While most commonly seen in the first six months of life, later-onset forms of KD also exist.
Purpose of the Study:
- To examine neurophysiologic study abnormalities in children diagnosed with Krabbe disease.
- To investigate the correlation between neurophysiologic findings and disease severity as indicated by MRI scans.
Main Methods:
- Retrospective review of Krabbe disease patients with available neurophysiologic and MRI data.
- Analysis of relationships between KD type (early infantile vs. late-onset), neurophysiologic results, and MRI-based disease severity.
Main Results:
- Abnormalities varied between early infantile KD (EIKD) and late-onset KD (LOKD).
- Nerve conduction studies were universally abnormal in EIKD, while EEGs and brainstem auditory evoked potentials showed high abnormality rates in both forms.
- Flash visual evoked potentials were abnormal only in EIKD patients.
- A significant correlation was observed between abnormal neurophysiologic findings and greater disease severity on MRI.
Conclusions:
- Distinct neurophysiologic abnormality patterns differentiate early infantile and late-onset Krabbe disease.
- Neurophysiologic studies provide an objective method for evaluating KD.
- These assessments correlate strongly with disease severity as visualized on MRI scans.