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Chronic relapsing multifocal sensory-motor neuropathy with conduction block.
I A Sharoqi1, D R Sadoh, M Koutroumanidis
1Department of Clinical Neurophysiology and Epilepsies, St. Thomas' Hospital, London, UK.
Journal of the Peripheral Nervous System : JPNS
|August 26, 2000
Summary
This case study describes a man with relapsing sensory-motor neuropathy. Intravenous immunoglobulin treatment led to significant improvement, suggesting an unusual multifocal variant of chronic inflammatory demyelinating neuropathy.
Area of Science:
- Neurology
- Neuroimmunology
Background:
- Chronic inflammatory demyelinating polyneuropathy (CIDP) is a rare autoimmune disorder affecting peripheral nerves.
- Multifocal variants of CIDP can present with varied clinical and electrophysiological findings.
Observation:
- A 47-year-old male experienced 13 relapsing-remitting episodes of sensory-motor neuropathy affecting the upper limbs over 20 years.
- Episodes typically resolved spontaneously within two months, except for the most recent one.
- Neurophysiological studies showed multifocal motor and sensory conduction block in upper limbs, with normal terminal latencies.
Findings:
- Cerebrospinal fluid (CSF) analysis was unremarkable.
- Testing for anti-GM1 antibodies was negative.
- The patient demonstrated a dramatic clinical response to intravenous immunoglobulin (IVIg) therapy.
Implications:
- This case highlights an unusual multifocal variant of chronic inflammatory demyelinating neuropathy.
- The findings expand the spectrum of CIDP presentations and treatment responses.
- It underscores the importance of considering IVIg in refractory cases with specific neurophysiological patterns.