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Prevention and mycoses in immunocompromised patients
Abstract:
Invasive fungal infections remain a major complication in immunocompromised hosts. The prognosis in these infections is poor, particularly for neutropenic patients with cancer. Candidiasis and aspergillosis are common in these patients, and numerous attempts have been made to evaluate potential prophylactic methods. Despite the fact that various agents (polyenes and/or imidazoles) and various formulations have been tested, the reported data on their effectiveness are still controversial. No single regimen can be recommended at this time for prevention of invasive candidiasis. The potential emergence of fungal strains resistant to the polyenes and the selection of Torulopsis glabrata by the imidazoles should also be taken into consideration. Aspergillosis, which is an airborne infection, may be prevented by isolation of patients at risk in rooms equipped with high-efficiency particulate air (HEPA) filters. In addition, the prophylactic administration of nasal sprays of amphotericin B has shown encouraging results, and this approach should be further investigated.
Insights
Preventing invasive fungal infections in immunocompromised patients, like those with cancer, remains challenging. Current prophylactic methods for candidiasis and aspergillosis show controversial results, necessitating further research.
Area of Science:
- Mycology
- Infectious Diseases
- Oncology
Background:
- Invasive fungal infections are serious complications in immunocompromised individuals, especially neutropenic cancer patients.
- Candidiasis and aspergillosis are prevalent, with poor prognoses and limited effective prophylactic strategies.
- Existing prophylactic agents like polyenes and imidazoles have controversial efficacy and potential resistance issues.
Purpose of the Study:
- To review the current status of prophylactic methods for invasive fungal infections in immunocompromised hosts.
- To evaluate the effectiveness and limitations of available antifungal agents and formulations.
- To identify potential strategies for preventing candidiasis and aspergillosis.
Main Methods:
- Literature review of studies evaluating prophylactic antifungal agents and methods.
- Analysis of data on the efficacy of polyenes, imidazoles, and other interventions.
- Consideration of emerging resistance patterns and alternative prevention techniques.
Main Results:
- No single regimen is currently recommended for preventing invasive candidiasis due to controversial data.
- Antifungal resistance (polyenes) and selection of resistant strains (imidazoles) are significant concerns.
- High-efficiency particulate air (HEPA) filtration and prophylactic nasal amphotericin B show promise for aspergillosis prevention.
Conclusions:
- Effective prophylaxis for invasive fungal infections in immunocompromised patients remains an unmet need.
- Further investigation into novel prophylactic approaches, including environmental controls and targeted therapies, is crucial.
- Careful consideration of antifungal resistance is necessary when selecting prophylactic strategies.