Brainstem auditory evoked potential (BAEP) abnormalities in brucellosis.

Area of Science:

• Neurology
• Infectious Diseases
• Neurophysiology

Background:

• Brucellosis is a systemic infection that can affect the central nervous system (CNS).
• Neurobrucellosis, a specific form of brucellosis, presents with neurological involvement.
• Early and accurate diagnosis of CNS lesions in brucellosis is crucial for effective management.

Purpose of the Study:

• To evaluate the utility of brainstem auditory evoked potentials (BAEP) in differentiating neurobrucellosis from systemic brucellosis.
• To assess the sensitivity of BAEP in detecting CNS lesions in patients with brucellosis.

Main Methods:

• A cohort study comparing BAEP findings in patients with confirmed neurobrucellosis and systemic brucellosis without neurological involvement.
• Standardized BAEP recordings were performed on all participants.
• Statistical analysis was used to compare BAEP parameters between the two groups.

Main Results:

• All neurobrucellosis patients (100%) exhibited abnormal BAEP recordings, indicating brainstem lesions.
• Only 29% of systemic brucellosis patients without neurological involvement showed mild BAEP abnormalities.
• Significant differences in all BAEP parameters were observed between the neurobrucellosis and systemic brucellosis groups.

Conclusions:

• BAEP is a highly sensitive diagnostic tool for identifying CNS lesions in neurobrucellosis.
• BAEP can aid in distinguishing neurobrucellosis from systemic brucellosis, even in the absence of overt neurological symptoms.
• This electrophysiological method serves as a valuable supplementary test for CNS involvement in brucellosis.