Bacterial meningitis in HIV-1-infected patients in the era of highly active antiretroviral therapy

Pere Domingo, Ignacio Suarez-Lozano, Ferran Torres, Virginia Pomar, Esteban Ribera, Ma Jose Galindo, Jaime Cosin, Ma Luisa Garcia-Alcalde, Francesc Vidal, Jose Lopez-Aldeguer, Bernardino Roca, Juan Gonzalez, Fernando Lozano, Myriam Garrido

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27 Citations (Scopus)

Abstract

BACKGROUND:: The burden that spontaneous bacterial meningitis (SBM) currently represents among HIV-1-infected patients is poorly known. METHODS:: We prospectively evaluated 32 episodes of SBM in HIV-1-infected patients from the VACH (VIH-Aplicación de Control Hospitalario) Cohort and compared findings with those of 267 episodes in uninfected persons, matched by age and year of infection. A group of 13,187 HIV-1-infected patients from the VACH Cohort were used to identify predictors for acquiring SBM. RESULTS:: Between 1997 and 2006, we found 32 episodes of SBM among HIV-1-infected patients for an annual incidence rate of 62.0 cases per 100,000 population compared with 3.2 (3.0 to 3.4) per 100,000 population for uninfected patients (P < 0.001). The last CD4 ≤200/mm count was the only predictor for developing SBM. Compared with uninfected, HIV-1-infected patients with SBM had a greater prevalence of primary extrameningeal infection, especially pneumonia (P = 0.02), bacteremia (P = 0.02), focal neurologic signs (P = 0.005), seizures (P = 0.06), a lower cerebrospinal fluid to blood glucose ratio (P = 0.02), and a lower prevalence of nuchal rigidity (P = 0.005). Streptococcus pneumoniae was the most frequent etiologic agent among HIV-1-infected patients. HIV-1-infected patients had neurologic complications more frequently (P = 0.02), a higher overall case fatality rate (P = 0.004), and greater incidence of neurologic sequelae (P = 0.001). CONCLUSIONS:: Even in the highly active antiretroviral therapy era, the risk of developing SBM is 19 times higher among HIV-1-infected patients than among uninfected ones. It tends to present in severely immunosuppressed patients not previously vaccinated and off antiretroviral therapy, with a concomitant extrameningeal infection, bacteremia, and focal neurologic signs, and is caused by S. pneumoniae. SBM in HIV-1-infected patients carries a worse prognosis than in uninfected ones both in terms of lethality and sequelae. Copyright © 2009 by Lippincott Williams & Wilkins.
Original languageEnglish
Pages (from-to)582-587
JournalJournal of Acquired Immune Deficiency Syndromes
Volume51
Issue number5
DOIs
Publication statusPublished - 1 Aug 2009

Keywords

  • Bacterial meningitis
  • HIV-1 infection
  • Pneumococcal disease
  • Pneumococcal vaccine
  • Prognosis
  • Streptococcus pneumoniae

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