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Published on: February 27, 2018
Meningitis due to Cryptococcus neoformans: treatment with posaconazole
Veronica G Flores1, Rosa M Cervantes Tovar, Patricia G Zaldivar
1Hospital de Infectología, CMN La Raza, México, D.F., Mexico. vgaona2@yahoo.com.mx
Background:
Central nervous system infections caused by Cryptococcus neoformans remain to be opportunistic infections with high mortality in severely immunocompromised patients such as patients with AIDS. Amphotericin B deoxycholate and fluconazole remain to be the drugs of choice; however, in consideration of the intolerance to amphotericin B deoxycholate and the possible resistance to fluconazole, it is necessary to evaluate other azoles, such as posaconazole, that have demonstrated lower adverse events. The objective of this study was to describe the characteristics and clinical and microbiological response of the use of posaconazole in patients with CNS infections caused by C. neoformans.
Methods:
We designed a case study that included eight patients diagnosed with AIDS and cryptococcal meningitis. Seven patients were treated with 800 mg of posaconazole orally for 28 days.
Results:
During the second week of treatment, a cerebrospinal fluid (CSF) culture was performed and was negative for the development of C. neoformans. The patients showed an improvement in signs and symptoms of impairment of the CNS such as reduction of cephalea, fever, visual disturbances such as double vision, meningism and papilledema, and improved alertness and environmental awareness.
Conclusions:
CNS fungal infections usually occur in immunocompromised patients. The use of systemic antifungal agents contributes to the development of fungal resistance. The results of this study suggest that posaconazole is a good alternative in the treatment of fungal CNS infection due to C. neoformans.
Insights
Posaconazole shows promise for treating cryptococcal meningitis in AIDS patients. This study found posaconazole effective in clearing the infection and improving symptoms, offering an alternative for central nervous system fungal infections.
Area of Science:
- Mycology
- Infectious Diseases
- Clinical Pharmacology
Background:
- Cryptococcus neoformans central nervous system (CNS) infections are opportunistic, posing high mortality risks in immunocompromised individuals, particularly those with AIDS.
- Standard treatments like Amphotericin B deoxycholate and fluconazole have limitations due to intolerance and potential drug resistance.
- Posaconazole, an azole antifungal, presents a potential alternative with a favorable adverse event profile.
Purpose of the Study:
- To evaluate the clinical and microbiological efficacy of posaconazole in patients with CNS infections caused by Cryptococcus neoformans.
- To describe the characteristics and treatment response of posaconazole use in this patient population.
Main Methods:
- A case study design was employed.
- Eight patients diagnosed with AIDS and cryptococcal meningitis were included.
- Seven patients received oral posaconazole at 800 mg daily for 28 days.
Main Results:
- Cerebrospinal fluid (CSF) cultures became negative for C. neoformans by the second week of treatment.
- Patients experienced significant improvement in CNS symptoms, including reduced headache, fever, and visual disturbances.
- Enhanced alertness and environmental awareness were observed in treated patients.
Conclusions:
- Central nervous system fungal infections predominantly affect immunocompromised hosts.
- The emergence of antifungal resistance is a concern with systemic antifungal agent use.
- Posaconazole appears to be a viable alternative for treating fungal CNS infections caused by C. neoformans.
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