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Axonal Guillain-Barré syndrome
1Department of Clinical Neurosciences, University of Calgary, Alberta, Canada.
Muscle & Nerve
|June 1, 1994
Summary
The controversial topic of axonal Guillain-Barré syndrome (GBS) is explored. Evidence suggests severe axonal degeneration can occur in GBS without inflammatory-demyelination, indicating a potential poor prognosis.
Area of Science:
- Neurology
- Immunology
- Pathology
Background:
- The existence and characteristics of axonal Guillain-Barré syndrome (GBS) are debated.
- Pathological findings in severe GBS cases show axonal degeneration without clear inflammatory-demyelination.
Purpose of the Study:
- To investigate the evidence for and implications of axonal degeneration in Guillain-Barré syndrome.
- To explore the relationship between axonal degeneration, demyelination, and prognosis in GBS.
Main Methods:
- Review of pathological examinations in four extreme GBS cases.
- Analysis of electrophysiological findings (electrically inexcitable nerves) in GBS patients.
- Correlation of clinical outcomes with pathological and electrophysiological findings.
Main Results:
- Severe axonal degeneration was observed in peripheral nerves of GBS patients without apparent inflammatory-demyelination.
- Electrically inexcitable nerves in GBS may indicate axonal degeneration, terminal demyelination, or both.
- A poor prognosis was associated with this finding in 70% of patients, though some recovered well.
Conclusions:
- The findings support the occurrence of axonal GBS, potentially independent of significant inflammatory-demyelination.
- Electrically inexcitable nerves serve as a prognostic indicator in GBS.
- Further research is needed to fully elucidate the mechanisms and clinical spectrum of axonal GBS.