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Related Experiment Videos

Cognitive outcome after bacterial meningitis.

S Merkelbach1, H Sittinger, I Schweizer

  • 1Department of Neurology, University Hospital of the Saarland, Homburg/Saar, Germany.

Acta Neurologica Scandinavica
|August 19, 2000
PubMed
Summary

Long-term cognitive deficits, including slowed processing and memory issues, are common after bacterial meningitis. These psychometric impairments often show little correlation with clinical neurological or psychiatric symptoms.

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Area of Science:

  • Neurology
  • Neuropsychology
  • Infectious Diseases

Background:

  • Bacterial meningitis can lead to long-term health consequences.
  • Cognitive deficits following meningitis require further investigation.

Purpose of the Study:

  • To assess persistent cognitive impairments in patients after bacterial meningitis.
  • To compare cognitive deficits with neurological and psychopathologic outcomes.

Main Methods:

  • 22 meningitis patients underwent neurological, psychiatric, and psychometric evaluations 30 months post-infection.
  • 17 healthy individuals served as controls for psychometric testing.
  • Results compared patient performance to controls and clinical findings.

Main Results:

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  • 16 patients exhibited neurological or psychopathologic symptoms.
  • Patients showed significant deficits in cognitive processing speed, psychomotor performance, concentration, visuoconstruction, and memory compared to controls.
  • Verbal intelligence was less affected than performance efficiency.
  • Pneumococcal meningitis patients had poorer outcomes.
  • Psychometric results weakly correlated with clinical findings.

Conclusions:

  • Cognitive deficits are prevalent long after bacterial meningitis.
  • The relationship between psychometric deficits and clinical symptoms is weak.
  • Neuropsychological impairment is characterized by psychomotor slowing and memory disturbances, similar to subcortical cognitive impairment.