Diagnostic role of brain-stem auditory evoked potentials in neurobrucellosis.
Evoked potential audiometry and brain-stem auditory evoked potentials were evaluated in 15 patients with systemic brucellosis in whom brucella meningitis was suspected clinically. In 8 patients cerebrospinal fluid (CSF) was abnormal with high brucella titre, and evoked potentials were abnormal in all of them. In 7 patients the CSF was normal and evoked potentials were also normal. Brain-stem auditory evoked potential abnormalities were categorised into 4 types: (1) abnormal wave I, (2) abnormal wave V, both irreversible, (3) prolonged I-III interpeak latencies, and (4) prolonged I-V interpeak latencies, both reversible. These findings are of important diagnostic value and correlate well with the clinical features, aetiopathogenesis and final outcome.
D000293:Adolescent; D000328:Adult; D002006:Brucellosis / Q000503:physiopathology*; D004569:Electroencephalography; D016057:Evoked Potentials, Auditory, Brain Stem / Q000502:physiology*; D005260:Female; D006801:Humans; D008297:Male; D016920:Meningitis, Bacterial / Q000503:physiopathology*; D008875:Middle Aged; D011379:Prognosis; D011446:Prospective Studies; D011930:Reaction Time / Q000502:physiology