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Guillain-Barré syndrome subtypes: A clinical electrophysiological study of 100 patients
A-M Grapperon1, M Berro1, E Salort-Campana1
1Referral Center for Neuromuscular Diseases and ALS, AP-HM, Timone University Hospital, 13385 Marseille, France.
Introduction:
A retrospective analysis was performed to document the clinical and electrophysiological features of Guillain-Barré syndrome (GBS) subtypes using different diagnostic criteria.
Methods:
One hundred GBS patients were included. Clinical and laboratory features were analyzed, and patients were classified according to four sets of diagnostic criteria. Electrodiagnostic criteria were also analyzed.
Results:
A total of 69 patients met Asbury and Cornblath's criteria, 96 met Van der Meché's criteria, 99 met Wakerley's diagnostic classification and 86 met level 1 or 2 of the Brighton criteria. Rates of GBS subtypes were: 69% classic GBS; 8% Miller-Fisher syndrome; 12% paraparetic GBS; 2% pharyngeal-cervical-brachial GBS; and 9% unclassified. Those for electrodiagnostic subtypes were 52% demyelinating and 9% axonal according to Hadden's criteria vs 41% demyelinating and 41% axonal as per Rajabally's criteria.
Conclusion:
In this study of case distribution within the GBS spectrum of a retrospective cohort of French patients, the application of new diagnostic criteria enabled accurate diagnoses and classifications of the different subtypes, and also increased the recognition of axonal GBS.
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