Audio
Clinical Professionals
Guillain-Barre Syndrome: EMG and CSF Diagnostic Features
Reviews electrodiagnostic patterns and CSF findings that support Guillain-Barre syndrome, including early false-negative testing.
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Duration
00:03:31
File size
1.57 MB
Practitioner-Guided Note
Use the clinical pattern and the timing of testing when interpreting EMG or CSF results. A normal early study does not rule out GBS if the weakness is ascending and reflexes are falling.
Key Takeaways
AIDP shows slowed conduction velocities and prolonged latencies; AMAN and AMSAN reduce or abolish motor amplitudes; CSF classically shows albuminocytologic dissociation; Early CSF and EMG can be normal; Early clinical suspicion should override negative studies