Overview
Fungal meningitis involves the inflammation of the meninges due to fungal invasion, commonly caused by Aspergillus, Candida, or Cryptococcus species, often complicating underlying immunosuppression or hematological malignancies 12.Diagnosis
Clinical Presentation: Focal neurological deficits, seizures, and meningeal signs may be present, though focal deficits are more common 2.
Laboratory Tests: Abnormal cerebrospinal fluid (CSF) analysis, including elevated opening pressure, pleocytosis, and protein levels 2.
Imaging: Neuroimaging can reveal vascular complications like aneurysms or infarcts 1.
Pathology: Histopathological examination showing fungal hyphae invasion of blood vessels leading to hemorrhagic infarction 2.Management
First-Line Treatment: Amphotericin B is commonly used initially, though resistance or intolerance may necessitate alternative agents 3.
Adjunctive Therapy: Intrathecal miconazole can be effective in cases refractory to amphotericin B, with dosing tailored to achieve therapeutic CSF concentrations 3.
Targeted Therapy: Specific antifungal agents like miconazole for coccidioidal, cryptococcal, or histoplasmosis meningitis, administered intravenously and intrathecally 3.Special Populations
Immunocompromised Patients: Higher risk due to underlying conditions like leukemia, lymphoma, or organ transplantation 2.
No Specific Guidance: Limited data on pediatrics, pregnancy, or elderly populations within the provided abstracts [].Key Recommendations
Eradicate Fungal Infection: Prioritize treatment of underlying fungal sepsis or meningitis to prevent complications like mycotic aneurysms 1 (Evidence: Moderate).
Monitor CSF Levels: Ensure therapeutic CSF levels of antifungal agents, especially when using intrathecal administration 3 (Evidence: Weak).
Consider Miconazole for Refractory Cases: Use miconazole as an alternative or adjunctive therapy in cases unresponsive to amphotericin B 3 (Evidence: Weak).References
1 Komatsu Y, Narushima K, Kobayashi E, Tomono Y, Nose T. Aspergillus mycotic aneurysm--case report. Neurologia medico-chirurgica 1991. link
2 Walsh TJ, Hier DB, Caplan LR. Aspergillosis of the central nervous system: clinicopathological analysis of 17 patients. Annals of neurology 1985. link
3 Sung JP, Campbell GD, Grendahl JG. Miconazole therapy for fungal meningitis. Archives of neurology 1978. link