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Visual pathway abnormalities in tuberculous meningitis.

Pradeep Kumar Maurya1, Ajai Kumar Singh1, Lalit Sharma2

  • 1Department of Neurology, Dr. Ram Manohar Lohia Institute of Medical Sciences, Vibhuti Khand, Gomti Nagar, Lucknow, Uttar Pradesh 226010, India.

Journal of Clinical Neuroscience : Official Journal of the Neurosurgical Society of Australasia
|September 11, 2016
PubMed
Summary
This summary is machine-generated.

Ophthalmological complications are frequent in tuberculous meningitis. Visual pathway abnormalities, often subclinical, were detected in over half of patients using neuroophthalmologic assessment and visual evoked responses (VER).

Keywords:
Neuro-ophthalmologyTuberculous meningitisVision lossVisual evoked responseVisual pathways

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Area of Science:

  • Neurology
  • Ophthalmology
  • Infectious Diseases

Background:

  • Tuberculous meningitis (TBM) frequently causes disabling ophthalmological complications.
  • Understanding visual pathway involvement is crucial for managing TBM patients.

Purpose of the Study:

  • To investigate visual pathway abnormalities in patients diagnosed with tuberculous meningitis.
  • To correlate neuroophthalmologic findings with electrophysiological data.

Main Methods:

  • Neuroophthalmologic assessment was performed on 43 TBM patients.
  • Visual evoked responses (VER) were recorded to evaluate the integrity of the visual pathway.
  • Analysis included P100 latency, amplitude, and interocular latency differences.

Main Results:

  • Neuroophthalmologic abnormalities were identified in 51.3% of patients.
  • VER abnormalities were detected in 62.8% of patients.
  • Common VER findings included prolonged P100 latencies and significant interocular latency differences.

Conclusions:

  • Visual pathway abnormalities are prevalent in tuberculous meningitis, frequently presenting as subclinical findings.
  • VER is a valuable tool for detecting these abnormalities.
  • Further research is needed to elucidate the pathophysiology underlying VER alterations in TBM.