Background and ObjectivesTo investigate CSF findings in relation to clinical and electrodiagnostic subtypes, severity, and outcome of Guillain-Barré syndrome (GBS) based on 1,500 patients in the International GBS Outcome Study.MethodsAlbuminocytologic dissociation (ACD) was defined as an increased protein level (>0.45 g/L) in the absence of elevated white cell count (<50 cells/L). We excluded 124 (8%) patients because of other diagnoses, protocol violation, or insufficient data. The CSF was examined in 1,231 patients (89%).ResultsIn 846 (70%) patients, CSF examination showed ACD, which increased with time from weakness onset: ≤4 days 57%, >4 days 84%. High CSF protein levels were associated with a demyelinating subtype, proximal or global muscle weakness, and a reduced likelihood of being able to run at week 2 (odds ratio [OR] 0.42, 95% CI 0.25-0.70; p = 0.001) and week 4 (OR 0.44, 95% CI 0.27-0.72; p = 0.001). Patients with the Miller Fisher syndrome, distal predominant weakness, and normal or equivocal nerve conduction studies were more likely to have lower CSF protein levels. CSF cell count was <5 cells/L in 1,005 patients (83%), 5-49 cells/L in 200 patients (16%), and ≥50 cells/L in 13 patients (1%).DiscussionACD is a common finding in GBS, but normal protein levels do not exclude this diagnosis. High CSF protein level is associated with an early severe disease course and a demyelinating subtype. Elevated CSF cell count, rarely ≥50 cells/L, is compatible with GBS after a thorough exclusion of alternative diagnoses.Classification of EvidenceThis study provides Class IV evidence that CSF ACD (defined by the Brighton Collaboration) is common in patients with GBS.

Al-Hakem, H., Doets, A., Stino, A., Zivkovic, S., Andersen, H., Willison, H., et al. (2023). CSF Findings in Relation to Clinical Characteristics, Subtype, and Disease Course in Patients With Guillain-Barré Syndrome. NEUROLOGY, 100(23), 2386-2397 [10.1212/WNL.0000000000207282].

CSF Findings in Relation to Clinical Characteristics, Subtype, and Disease Course in Patients With Guillain-Barré Syndrome

Cavaletti G.;
2023

Abstract

Background and ObjectivesTo investigate CSF findings in relation to clinical and electrodiagnostic subtypes, severity, and outcome of Guillain-Barré syndrome (GBS) based on 1,500 patients in the International GBS Outcome Study.MethodsAlbuminocytologic dissociation (ACD) was defined as an increased protein level (>0.45 g/L) in the absence of elevated white cell count (<50 cells/L). We excluded 124 (8%) patients because of other diagnoses, protocol violation, or insufficient data. The CSF was examined in 1,231 patients (89%).ResultsIn 846 (70%) patients, CSF examination showed ACD, which increased with time from weakness onset: ≤4 days 57%, >4 days 84%. High CSF protein levels were associated with a demyelinating subtype, proximal or global muscle weakness, and a reduced likelihood of being able to run at week 2 (odds ratio [OR] 0.42, 95% CI 0.25-0.70; p = 0.001) and week 4 (OR 0.44, 95% CI 0.27-0.72; p = 0.001). Patients with the Miller Fisher syndrome, distal predominant weakness, and normal or equivocal nerve conduction studies were more likely to have lower CSF protein levels. CSF cell count was <5 cells/L in 1,005 patients (83%), 5-49 cells/L in 200 patients (16%), and ≥50 cells/L in 13 patients (1%).DiscussionACD is a common finding in GBS, but normal protein levels do not exclude this diagnosis. High CSF protein level is associated with an early severe disease course and a demyelinating subtype. Elevated CSF cell count, rarely ≥50 cells/L, is compatible with GBS after a thorough exclusion of alternative diagnoses.Classification of EvidenceThis study provides Class IV evidence that CSF ACD (defined by the Brighton Collaboration) is common in patients with GBS.
Articolo in rivista - Articolo scientifico
immunoglobulin G, Guillain-Barrè Syndrome
English
19-apr-2023
2023
100
23
2386
2397
reserved
Al-Hakem, H., Doets, A., Stino, A., Zivkovic, S., Andersen, H., Willison, H., et al. (2023). CSF Findings in Relation to Clinical Characteristics, Subtype, and Disease Course in Patients With Guillain-Barré Syndrome. NEUROLOGY, 100(23), 2386-2397 [10.1212/WNL.0000000000207282].
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/10281/457804
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