Paradoxical immune reconstitution inflammatory syndrome associated with cryptococcal meningitis in China: a 5-year

S Yan1, L Chen1, W Wu2

  • 1Department of Epidemiology and Health Statistics, School of Public Health, Central South University, Changsha, Hunan Province, China.

Insights

Paradoxical cryptococcal meningitis-immune reconstitution inflammatory syndrome (CM-IRIS) occurred in 17.5% of hospitalized AIDS patients in China. Key risk factors included pre-treatment CD4+ count, C-reactive protein levels, and antiretroviral therapy timing.

Area of Science:

  • Infectious Diseases
  • Immunology
  • Epidemiology

Background:

  • Cryptococcal meningitis (CM) is a significant opportunistic infection in individuals with advanced HIV/AIDS.
  • Immune reconstitution inflammatory syndrome (IRIS) can complicate antiretroviral therapy (ART) initiation in these patients.
  • Paradoxical CM-IRIS presents a specific challenge in managing HIV-associated neuroinfections.

Purpose of the Study:

  • To investigate the clinical and epidemiological characteristics of paradoxical CM-IRIS.
  • To identify risk factors associated with the development of CM-IRIS in hospitalized patients in China.
  • To understand the impact of CM-IRIS on patient outcomes.

Main Methods:

  • Retrospective cohort study design.
  • Inclusion of 154 hospitalized patients diagnosed with CM and AIDS.
  • Analysis of clinical data, including CD4+ T-cell counts, C-reactive protein levels, and ART initiation timing.

Main Results:

  • 17.5% of patients developed CM-IRIS at a median of 27 days post-ART initiation.
  • Three deaths were directly attributed to CM-IRIS.
  • Independent risk factors for CM-IRIS included lower pre-ART CD4+ count, elevated pre-ART C-reactive protein, and the timing of ART initiation.

Conclusions:

  • Paradoxical CM-IRIS is a notable complication in hospitalized AIDS patients with CM in China.
  • Specific immunological and clinical markers predict CM-IRIS development.
  • Timely identification and management of risk factors are crucial for improving outcomes in CM-IRIS patients.