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Antifungal Susceptibility Does Not Correlate With Fungal Clearance or Survival in AIDS-Associated Cryptococcal

Lucy O'Connor1, Duong Van Anh2, Tran Thi Hong Chau2

  • 1Guy's and St Thomas' NHS Trust, United Kingdom.

Clinical Infectious Diseases : an Official Publication of the Infectious Diseases Society of America
|October 14, 2020
PubMed

Insights

Antifungal susceptibility testing did not predict treatment outcomes for cryptococcal meningitis in AIDS patients. This finding suggests clinical factors may be more important than in vitro drug resistance for this opportunistic infection.

Area of Science:

  • Mycology
  • Infectious Diseases
  • Clinical Medicine

Background:

  • AIDS-associated cryptococcal meningitis remains a significant cause of mortality.
  • Antifungal therapy is the cornerstone of treatment, but treatment responses can vary.
  • Predicting treatment response is crucial for optimizing patient management.

Purpose of the Study:

  • To evaluate the utility of antifungal susceptibility testing in predicting clinical outcomes of AIDS-associated cryptococcal meningitis.
  • To determine if in vitro susceptibility correlates with survival and fungal clearance in patients receiving different antifungal regimens.

Main Methods:

  • Analysis of clinical isolates from a randomized controlled trial comparing antifungal treatments.
  • In vitro antifungal susceptibility testing of Cryptococcus isolates.
  • Correlation of susceptibility data with clinical endpoints such as early/late survival and fungal clearance.

Main Results:

  • No significant correlation was observed between the antifungal susceptibility of Cryptococcus isolates and patient survival (early or late).
  • Antifungal susceptibility testing did not predict the rate of fungal clearance in patients with AIDS-related cryptococcal meningitis.
  • The study found no predictive value of in vitro susceptibility for treatment response.

Conclusions:

  • In vitro antifungal susceptibility testing may not be a reliable predictor of clinical outcomes in AIDS-associated cryptococcal meningitis.
  • Clinical factors and treatment regimens appear to be more influential than in vitro susceptibility in determining patient response.
  • Further research may be needed to identify reliable biomarkers for predicting treatment success in this population.
Keywords:
HIVcryptococcal meningitismortalityoutcomesusceptibility testing

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