HIV Patient Cryptococcal Meningitis Therapy
The patient presents with symptoms suggestive of meningitis (fever, malaise, headache) and is known to have HIV disease, indicating a potential opportunistic infection.
CSF Analysis Findings
- Cell Count: 20 cells (elevated)
- Differential: 80% lymphocytes (lymphocytic pleocytosis)
- Protein: $100 \text{ mg/dl}$ (elevated)
- Sugar: $35 \text{ mg/dl}$ (low)
- Microscopy: Positive India ink preparation
Diagnosis Rationale
The positive India ink preparation is diagnostic for Cryptococcus neoformans. The CSF profile (lymphocytic pleocytosis, elevated protein, low sugar) is characteristic of cryptococcal meningitis. This is a common and serious complication in patients with advanced HIV disease.
Appropriate Therapy
The standard initial treatment for cryptococcal meningitis in HIV-positive individuals involves an induction phase with an antifungal agent.
- Amphotericin-B (often combined with flucytosine) is the cornerstone of initial therapy for severe fungal infections like cryptococcal meningitis. It targets the Cryptococcus organism directly.
- Amoxycillin is an antibiotic and ineffective against fungal infections.
- Acyclovir is an antiviral medication used for herpes virus infections, not fungal meningitis.
- Anti-tubercular drugs would be appropriate if the India ink were negative and other findings suggested tuberculous meningitis, but the positive India ink rules this out as the primary diagnosis.
Therefore, Amphotericin-B is the most appropriate initial therapy.
Important Questions from Fungal Infections
- A 32-year old HIV infected male presents with shortness of breath and moderate fever of two- week duration. On examination, cyanosis is present, with respiratory rate of 22/minute and some basal crackles in chest. The CT chest shows bilateral ground-glass pattern. The most likely etiologic diagnosis is:
- Cryptococcal infection is acquired through:
- Echinocandins are a class of:
- Antifungal agent of choice for the treatment of mucormycosis is:
- Consider the following statements with regard to Amphotericin B :
1. It is a narrow spectrum antifungal agent.
2. It can cause nephrotoxicity.
3. It lacks an oral preparation.
4. Its lipid formulations are less toxic.
Select the correct answer using the code given below:
