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The treatment of a pregnant HIV positive patient with cryptococcal meningitis in Malawi. Case report and review of treatment options.

ABSTRACT: This case reports cryptococcal meningitis in an HIV positive woman on antiretroviral therapy, presenting with left middle cerebral artery stroke at 30 weeks gestation. The patient had well-controlled HIV (CD4 count over 200 cells/mL). The immunosuppressive effects of the pregnancy likely contributed to the development of cryptococcal disease. The patient was successfully treated with two weeks of amphotericin B followed by fluconazole, delivered a healthy baby, but remained with a permanent severe neurological deficit.

SUBMITTER: Bright PD

PROVIDER: S-EPMC6105915 | biostudies-literature | 2018 Mar

REPOSITORIES: biostudies-literature

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The treatment of a pregnant HIV positive patient with cryptococcal meningitis in Malawi. Case report and review of treatment options.

Bright Philip D PD Lupiya Duncan D van Oosterhout Joep J JJ Chen Amy A Harrison Thomas S TS Chan Adrienne K AK

Medical mycology case reports 20171028

This case reports cryptococcal meningitis in an HIV positive woman on antiretroviral therapy, presenting with left middle cerebral artery stroke at 30 weeks gestation. The patient had well-controlled HIV (CD4 count over 200 cells/mL). The immunosuppressive effects of the pregnancy likely contributed to the development of cryptococcal disease. The patient was successfully treated with two weeks of amphotericin B followed by fluconazole, delivered a healthy baby, but remained with a permanent seve ...[more]

PMID: 30148053

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Project description:BackgroundCryptococcal meningitis associated with human immunodeficiency virus (HIV) infection causes more than 600,000 deaths each year worldwide. Treatment has changed little in 20 years, and there are no imminent new anticryptococcal agents. The use of adjuvant glucocorticoids reduces mortality among patients with other forms of meningitis in some populations, but their use is untested in patients with cryptococcal meningitis.MethodsIn this double-blind, randomized, placebo-controlled trial, we recruited adult patients with HIV-associated cryptococcal meningitis in Vietnam, Thailand, Indonesia, Laos, Uganda, and Malawi. All the patients received either dexamethasone or placebo for 6 weeks, along with combination antifungal therapy with amphotericin B and fluconazole.ResultsThe trial was stopped for safety reasons after the enrollment of 451 patients. Mortality was 47% in the dexamethasone group and 41% in the placebo group by 10 weeks (hazard ratio in the dexamethasone group, 1.11; 95% confidence interval [CI], 0.84 to 1.47; P=0.45) and 57% and 49%, respectively, by 6 months (hazard ratio, 1.18; 95% CI, 0.91 to 1.53; P=0.20). The percentage of patients with disability at 10 weeks was higher in the dexamethasone group than in the placebo group, with 13% versus 25% having a prespecified good outcome (odds ratio, 0.42; 95% CI, 0.25 to 0.69; P<0.001). Clinical adverse events were more common in the dexamethasone group than in the placebo group (667 vs. 494 events, P=0.01), with more patients in the dexamethasone group having grade 3 or 4 infection (48 vs. 25 patients, P=0.003), renal events (22 vs. 7, P=0.004), and cardiac events (8 vs. 0, P=0.004). Fungal clearance in cerebrospinal fluid was slower in the dexamethasone group. Results were consistent across Asian and African sites.ConclusionsDexamethasone did not reduce mortality among patients with HIV-associated cryptococcal meningitis and was associated with more adverse events and disability than was placebo. (Funded by the United Kingdom Department for International Development and others through the Joint Global Health Trials program; Current Controlled Trials number, ISRCTN59144167.).

Project description:The fungus Cryptococcus is a major cause of meningoencephalitis in HIV-infected as well as HIV-uninfected individuals with mortalities in developed countries of 20% and 30%, respectively. In HIV-related disease, defects in T-cell immunity are paramount, whereas there is little understanding of mechanisms of susceptibility in non-HIV related disease, especially that occurring in previously healthy adults. The present description is the first detailed immunological study of non-HIV-infected patients including those with severe central nervous system (s-CNS) disease to 1) identify mechanisms of susceptibility as well as 2) understand mechanisms underlying severe disease. Despite the expectation that, as in HIV, T-cell immunity would be deficient in such patients, cerebrospinal fluid (CSF) immunophenotyping, T-cell activation studies, soluble cytokine mapping and tissue cellular phenotyping demonstrated that patients with s-CNS disease had effective microbiological control, but displayed strong intrathecal expansion and activation of cells of both the innate and adaptive immunity including HLA-DR+ CD4+ and CD8+ cells and NK cells. These expanded CSF T cells were enriched for cryptococcal-antigen specific CD4+ cells and expressed high levels of IFN-γ as well as a lack of elevated CSF levels of typical T-cell specific Th2 cytokines -- IL-4 and IL-13. This inflammatory response was accompanied by elevated levels of CSF NFL, a marker of axonal damage, consistent with ongoing neurological damage. However, while tissue macrophage recruitment to the site of infection was intact, polarization studies of brain biopsy and autopsy specimens demonstrated an M2 macrophage polarization and poor phagocytosis of fungal cells. These studies thus expand the paradigm for cryptococcal disease susceptibility to include a prominent role for macrophage activation defects and suggest a spectrum of disease whereby severe neurological disease is characterized by immune-mediated host cell damage.

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The treatment of a pregnant HIV positive patient with cryptococcal meningitis in Malawi. Case report and review of treatment options.

Publications

The treatment of a pregnant HIV positive patient with cryptococcal meningitis in Malawi. Case report and review of treatment options.

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