Journal of neuroimmunology · 2020
Searching for autoimmune encephalitis: Beware of normal CSF.
СтатьяМногоцентровое исследованиеПоддержка NIH: внешняя программаПоддержка исследования: вне правительства СШАНазвание и аннотация: Перевод в очереди
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Hébert Julien, Gros Priti, Lapointe Sarah, Amtashar Fatima S, Steriade Claude, Maurice Catherine, Wennberg Richard A, Day Gregory S, Tang-Wai David F
Аннотация
OBJECTIVE: To determine the prevalence of cerebrospinal fluid (CSF) markers associated with inflammation (i.e., elevated white blood cell count, protein concentration, and CSF-specific oligoclonal bands) in patients with early active autoimmune encephalitis (AE).
METHODS: CSF characteristics, including WBC count, protein concentration, and oligoclonal banding, were analyzed in patients diagnosed with AE at two tertiary care centers.
RESULTS: Ninety-five patients were included in the study. CSF white blood cell counts and protein levels were within normal limits for 27% (CI95%: 19-37) of patients with AE. When results of oligoclonal banding were added, 14% (CI95%: 6-16) of patients with AE had "normal" CSF. The median CSF white blood cell count was 8 cells/mm3 (range: 0-544) and the median CSF protein concentration was 0.42 g/L (range: 0.15-3.92).
CONCLUSIONS: White blood cell counts and protein levels were within normal limits in the CSF of a substantial proportion of patients with early active AE. Inclusion of CSF oligoclonal banding identified a higher proportion of patients with an inflammatory CSF profile, especially when CSF was sampled early in the disease process.
METHODS: CSF characteristics, including WBC count, protein concentration, and oligoclonal banding, were analyzed in patients diagnosed with AE at two tertiary care centers.
RESULTS: Ninety-five patients were included in the study. CSF white blood cell counts and protein levels were within normal limits for 27% (CI95%: 19-37) of patients with AE. When results of oligoclonal banding were added, 14% (CI95%: 6-16) of patients with AE had "normal" CSF. The median CSF white blood cell count was 8 cells/mm3 (range: 0-544) and the median CSF protein concentration was 0.42 g/L (range: 0.15-3.92).
CONCLUSIONS: White blood cell counts and protein levels were within normal limits in the CSF of a substantial proportion of patients with early active AE. Inclusion of CSF oligoclonal banding identified a higher proportion of patients with an inflammatory CSF profile, especially when CSF was sampled early in the disease process.