Cerebrospinal fluid lactate in dogs with inflammatory central nervous system disorders.
Publisher DOI
PubMed ID
31549740
Abstract
BACKGROUND
Cerebrospinal fluid (CSF) lactate is frequently used as a biomarker in humans with inflammatory central nervous system (CNS) disorders including bacterial meningitis and autoimmune disorders such as multiple sclerosis.
HYPOTHESIS
Cerebrospinal fluid lactate concentrations are increased in a subset of dogs with inflammatory CNS disorders.
ANIMALS
One hundred two client-owned dogs diagnosed with inflammatory CNS disease.
METHODS
Case series. Cases were identified both prospectively at the time of diagnosis and retrospectively by review of a CSF biorepository. Cerebrospinal fluid lactate was analyzed with a commercially available, handheld lactate monitor. Subcategories of inflammatory disease were created for comparison (eg, steroid-responsive meningitis arteritis, meningoencephalitis of unknown etiology).
RESULTS
Cerebrospinal fluid lactate concentrations were above reference range in 47% of dogs (median, 2.5 mmol/L; range, 1.0-11.7 mmol/L). There was no significant difference in lactate concentrations between disease subcategories (P = .48). Significant but weak correlations were noted between CSF lactate concentration and nucleated cell count (r = .33, P < .001), absolute large mononuclear cell count (r = .44, P < .001), absolute small mononuclear cell count (r = .39, P < .001), absolute neutrophil cell count (r = .24, P = .01), and protein (r = .44, P < .001). No correlation was found between CSF lactate concentration and CSF red blood cell count (P = .58). There was no significant association of CSF lactate concentration with survival (P = .27).
CONCLUSIONS AND CLINICAL IMPORTANCE
Cerebrospinal fluid lactate concentrations could serve as a rapid biomarker of inflammatory CNS disease in dogs.
Cerebrospinal fluid (CSF) lactate is frequently used as a biomarker in humans with inflammatory central nervous system (CNS) disorders including bacterial meningitis and autoimmune disorders such as multiple sclerosis.
HYPOTHESIS
Cerebrospinal fluid lactate concentrations are increased in a subset of dogs with inflammatory CNS disorders.
ANIMALS
One hundred two client-owned dogs diagnosed with inflammatory CNS disease.
METHODS
Case series. Cases were identified both prospectively at the time of diagnosis and retrospectively by review of a CSF biorepository. Cerebrospinal fluid lactate was analyzed with a commercially available, handheld lactate monitor. Subcategories of inflammatory disease were created for comparison (eg, steroid-responsive meningitis arteritis, meningoencephalitis of unknown etiology).
RESULTS
Cerebrospinal fluid lactate concentrations were above reference range in 47% of dogs (median, 2.5 mmol/L; range, 1.0-11.7 mmol/L). There was no significant difference in lactate concentrations between disease subcategories (P = .48). Significant but weak correlations were noted between CSF lactate concentration and nucleated cell count (r = .33, P < .001), absolute large mononuclear cell count (r = .44, P < .001), absolute small mononuclear cell count (r = .39, P < .001), absolute neutrophil cell count (r = .24, P = .01), and protein (r = .44, P < .001). No correlation was found between CSF lactate concentration and CSF red blood cell count (P = .58). There was no significant association of CSF lactate concentration with survival (P = .27).
CONCLUSIONS AND CLINICAL IMPORTANCE
Cerebrospinal fluid lactate concentrations could serve as a rapid biomarker of inflammatory CNS disease in dogs.
Date Issued
2019-11
Publication Type
Article
Subject(s)
Subjects
canine encephalitis meningitis meningo meningoencephalitis myelitis
Language(s)
en
Author(s)
Mariani, Christopher L. | |
Nye, Carolyn J. | |
Tokarz, Debra A. | |
Green, Lauren | |
Lau, Jeanie | |
Zidan, Natalia | |
Early, Peter J. | |
Muñana, Karen R. | |
Olby, Natasha J. | |
Miles, Sarita |
Additional Credits
Journal
Journal of veterinary internal medicine
Publisher
Wiley-Blackwell
ISSN
0891-6640
Access(Rights)
open.access