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AIDS ; 35(12): 1929-1938, 2021 10 01.
Article in English | MEDLINE | ID: mdl-34101629

ABSTRACT

OBJECTIVES: Our study's primary objective was to compare 1-year survival rates between serum cryptococcal antigen (sCrAg)-positive and sCrAg-negative HIV-positive individuals with CD4+ cell counts less than 100 cells/µl without symptoms of meningitis in Zimbabwe. DESIGN: This was a prospective cohort study. METHODS: Participants were enrolled as either sCrAg-positive or sCrAg-negative and followed up for 52 weeks or less, with death as the outcome. Lumbar punctures were recommended to all sCrAg-positives and inpatient management with intravenous amphotericin B and high-dose fluconazole was recommended to those with disseminated Cryptococcus. Antiretroviral therapy was initiated immediately in sCrAg-negatives and after at least 4 weeks following initiation of antifungals in sCrAg-positives. Multivariable logistic regression models were used to determine risk factors for mortality. RESULTS: We enrolled 1320 participants and 130 (9.8%) were sCrAg positive, with a median sCrAg titre of 1 : 20. Sixty-six (50.8%) sCrAg-positives had lumbar punctures and 16.7% (11/66) had central nervous system (CNS) dissemination. Cryptococcal blood cultures were performed in 129 sCrAg-positives, with 10 (7.8%) being positive. One-year (48-52 weeks) survival rates were 83.9 and 76.1% in sCrAg-negatives and sCrAg-positives, respectively, P = 0.011. Factors associated with increased mortality were a positive sCrAg, CD4+ cell count less than 50 cells/µl and having presumptive tuberculosis (TB) symptoms. CONCLUSION: Our study reports a high prevalence of subclinical cryptococcal antigenemia and reiterates the importance of TB and a positive sCrAg as risk factors for mortality in advanced HIV disease (AHD). Therefore, TB and sCrAg screening remains a crucial component of AHD package, hence it should always be part of the comprehensive clinical evaluation in AHD patients.


Subject(s)
AIDS-Related Opportunistic Infections , Cryptococcus , HIV Infections , Meningitis, Cryptococcal , AIDS-Related Opportunistic Infections/drug therapy , Antifungal Agents/therapeutic use , Antigens, Fungal , CD4 Lymphocyte Count , HIV Infections/complications , HIV Infections/drug therapy , Humans , Meningitis, Cryptococcal/diagnosis , Meningitis, Cryptococcal/drug therapy , Prospective Studies
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