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Culture positive tuberculous meningitis: clinical indicators of poor prognosis

E K Tan1, M W Chee, L L Chan

  • 1Department of Neurology, Singapore General Hospital, Singapore. ek12@aol.com

Clinical Neurology and Neurosurgery
|October 28, 1999
PubMed

Insights

Hydrocephalus is a key predictor of poor outcomes in culture-positive tuberculous meningitis (TBM). This finding highlights the importance of identifying and managing hydrocephalus in TBM patients for improved prognosis.

Area of Science:

  • Neurology
  • Infectious Diseases
  • Public Health

Background:

  • Tuberculous meningitis (TBM) is a severe form of extrapulmonary tuberculosis.
  • Few studies have specifically analyzed culture-positive TBM cases as a distinct group.
  • Identifying prognostic factors in culture-positive TBM is crucial for patient management.

Purpose of the Study:

  • To evaluate clinical factors associated with poorer outcomes in culture-positive tuberculous meningitis.
  • To determine if specific clinical characteristics predict increased morbidity and mortality in these patients.

Main Methods:

  • Retrospective analysis of 40 consecutive TBM patients over 4 years.
  • Focus on 18 culture-positive, non-HIV-related cases.
  • Univariate analysis of clinical factors including age, sex, symptom duration, hydrocephalus, cerebral infarct, extrameningeal spread, steroid use, time to treatment, and disease stage.

Main Results:

  • Hydrocephalus was significantly correlated with poor morbidity and mortality (P = 0.007).
  • Other evaluated factors (age, sex, symptom duration, BCG vaccination, cerebral infarct, extrameningeal spread, steroids, time to treatment, disease stage) were not statistically significant predictors of outcome.
  • A trend towards poorer prognosis was observed in patients with advanced disease stage.

Conclusions:

  • Hydrocephalus is the sole significant factor identified that predisposes culture-positive TBM patients to a poorer outcome.
  • Early identification and management of hydrocephalus may be critical for improving outcomes in culture-positive TBM.

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