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In Vivo Morphometric Analysis of Human Cranial Nerves Using Magnetic Resonance Imaging in Menière's Disease Ears and Normal Hearing Ears
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Published on: February 21, 2018

Cranial nerve palsy as a factor to differentiate tuberculous meningitis from acute bacterial meningitis

Ali Moghtaderi1, Roya Alavi-Naini, Saideh Rashki

  • 1Department of Neurology, Zahedan University of Medical Sciences, Zahedan, Iran. ranaini@gmail.com.

Acta Medica Iranica
|April 16, 2013
PubMed

Insights

Cranial nerve palsies are key indicators for differentiating tuberculous meningitis (TBM) from acute bacterial meningitis (ABM). Early identification of these neurological features aids in aggressive patient monitoring and improved outcomes for meningitis.

Area of Science:

  • Neurology
  • Infectious Diseases
  • Public Health

Background:

  • Tuberculous meningitis (TBM) and acute bacterial meningitis (ABM) are leading causes of death and disability globally.
  • Early identification of prognostic factors in meningitis patients is crucial for timely and aggressive management.
  • Neurological features at admission can help distinguish between TBM and ABM, guiding treatment strategies.

Purpose of the Study:

  • To evaluate the predictive value of neurological signs in differentiating TBM from ABM.
  • To identify key neurological features that can assist clinicians in diagnosing meningitis subtypes upon admission.

Main Methods:

  • A retrospective study analyzed neurological features of patients with TBM or ABM admitted to three teaching hospitals over 14 years.
  • Neurological assessments included seizure, level of consciousness, stroke, focal neurologic deficit, and cranial nerve palsy.
  • Multivariate logistic regression was used to determine the predictive significance of these features.

Main Results:

  • Cranial nerve palsy demonstrated a significant positive predictive effect (AOR=1.980) for TBM diagnosis.
  • While other neurological variables showed differences, seizure episodes did not significantly differentiate between TBM and ABM.
  • Cranial nerve palsies emerged as the most critical neurological predictor for distinguishing TBM from ABM.

Conclusions:

  • Cranial nerve palsies are a highly valuable clinical sign for differentiating TBM from ABM.
  • Integrating neurological assessments, particularly cranial nerve palsies, into initial patient evaluations can improve meningitis diagnosis and management.
  • Further research into early diagnostic markers for meningitis subtypes is warranted to reduce mortality and morbidity.

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