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Classic Guillain-Barré syndrome.

José Berciano1, José Gazulla2, Jon Infante1

  • 1Servicio de Neurología, Hospital Universitario Marqués de Valdecilla (IDIVAL), Universidad de Cantabria. Centro de Investigación Biomédica en Red de Enfermedades Neurodegenerativas (CIBERNED), Santander, España.

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PubMed
Summary

Classic Guillain-Barré syndrome, an immune-mediated neuropathy, presents with varied paralysis. Early inflammatory edema in spinal nerves is key, explaining elevated axonal damage biomarkers in both forms.

Keywords:
Albumin-cytologic dissociationAxonal biomarkersAxonal degenerationBiomarcadores axonalesClassic Guillain-Barré syndromeDegeneración axonalDemyelinationDesmielinizaciónDisociación albúmino-citológicaEdema inflamatorioEstudios de conducción nerviosaInflammatory edemaNerve conduction studiesSíndrome de Guillain-Barré clásicoUltrasonografíaUltrasonography

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Area of Science:

  • Neurology
  • Immunology
  • Pathology

Background:

  • Classic Guillain-Barré syndrome is an acute, post-infectious, immune-mediated polyneuropathy.
  • It encompasses both demyelinating and axonal forms, characterized by flaccid tetraparesis.

Purpose of the Study:

  • To review recent nosological advances in Guillain-Barré syndrome.
  • To highlight the importance of early pathological findings and diagnostic/prognostic scales.

Main Methods:

  • Review of numerous nosological advances.
  • Analysis of data from the International Guillain-Barré Outcome Study (IGOS) cohort (2000 patients).
  • Emphasis on pathological substrate from autopsy, especially in the early phase (≤4 days).

Main Results:

  • The International Guillain-Barré Outcome Study has facilitated the development of diagnostic and prognostic scales.
  • Early-phase pathology (≤4 days) reveals inflammatory edema in proximal nerve trunks and spinal nerves as a fundamental lesion.
  • Elevated serum axonal biomarkers are observed in both axonal and demyelinating forms, linked to this early inflammatory process.

Conclusions:

  • Understanding early inflammatory edema offers new pathogenic, diagnostic, and therapeutic insights into Guillain-Barré syndrome.
  • This finding helps explain the elevation of serum axonal biomarkers across different forms of the syndrome.
  • Advances driven by large international studies are crucial for improving patient outcomes.