Long term 5-year survival of persons with cryptococcal meningitis or asymptomatic subclinical antigenemia in Uganda

PLoS One. 2012;7(12):e51291. doi: 10.1371/journal.pone.0051291. Epub 2012 Dec 10.

Abstract

Data presented previously as an abstract at the 2011 CUGH Global Health Conference in Montreal, Canada on 15 Nov 2011. The long-term survival of HIV-infected persons with symptomatic cryptococcal meningitis and asymptomatic, subclinical cryptococcal antigenemia (CRAG+) is unknown. We prospectively enrolled 25 asymptomatic, antiretroviral therapy (ART)-naïve CRAG+ Ugandans with CD4<100 cells/mcL who received pre-emptive fluconazole treatment (CRAG+ cohort) and 189 ART-naïve Ugandans with symptomatic cryptococcal meningitis treated with amphotericin (CM cohort). The 10-week survival was 84% (95%CI: 70-98%) in the CRAG+ cohort and 57% (95%CI: 50%-64%) in the CM cohort. The CRAG+ cohort had improved five-year survival of 76% (95%CI: 59%-93%) compared to 42% (95%CI: 35%-50%) in the CM cohort (P = 0.001). The two cohorts had similar immunosuppression pre-ART with median CD4 counts of 15 vs. 21 CD4/mcL in the CRAG+ and CM cohorts, respectively (P = 0.45). Despite substantial early mortality, subsequent 5-year survival of persons surviving 6-months was excellent (>88%), demonstrating that long term survival is possible in resource-limited settings. Pre-ART CRAG screening with preemptive fluconazole treatment and improved CM treatment(s) are needed to reduce AIDS-attributable mortality due to cryptococcosis which remains 20-25% in sub-Saharan Africa.

Publication types

  • Research Support, N.I.H., Extramural
  • Research Support, Non-U.S. Gov't

MeSH terms

  • Adult
  • Antigens, Fungal / blood*
  • Cohort Studies
  • Female
  • Humans
  • Male
  • Meningitis, Cryptococcal / immunology
  • Meningitis, Cryptococcal / physiopathology*
  • Middle Aged
  • Survival Analysis*
  • Uganda

Substances

  • Antigens, Fungal