Tx for crytomeninggitis

Summary

For suspected cryptococcal meningitis, initiate induction therapy with amphotericin B plus flucytosine to rapidly sterilize the CSF. This regimen is used regardless of immunosuppression status and is followed by a consolidation phase with high-dose fluconazole.

Agents

Dose: Liposomal amphotericin B 3–4 mg/kg/day IV PLUS oral flucytosine 100 mg/kg/day in 4 divided doses
When: Start as induction therapy for 2 weeks in patients with suspected cryptococcal meningitis
Monitoring: Renal function, electrolytes, and complete blood counts (due to potential nephrotoxicity and bone marrow suppression)

Caution

Amphotericin B is contraindicated in patients with severe hypersensitivity to polyene antifungals
Avoid concomitant nephrotoxic agents due to risk of renal impairment
Do not use adjunctive corticosteroids as they have been associated with increased mortality in cryptococcal meningitis

Targets

Goal: Achieve rapid CSF sterilization and reduction in fungal burden to improve survival
Hold/stop if: Evidence of significant renal impairment or severe electrolyte disturbances develops

Dosing

Population	Dose	Max	Notes
Adult	Liposomal amphotericin B: 3–4 mg/kg/day IV Flucytosine: 100 mg/kg/day orally (divided q6hrs)	N/A	Induction for 2 weeks; follow with consolidation phase (fluconazole 400 mg/day for 8 weeks) ^1 ^2
Peds	Weight based dosing similar to adults	N/A	Adjust dosing as per weight; consultation with pediatric ID recommended
Pregnancy	Amphotericin B preferred (safe in pregnancy)	N/A	Flucytosine use in pregnancy should be considered carefully

Adjustments

Renal: May require dose adjustment or increased monitoring in renal impairment
Hepatic: No specific adjustments indicated but monitor liver function as needed
Obesity: Dose using actual body weight; consider if pharmacokinetic concerns arise

Adverse effects to watch for

Nephrotoxicity and electrolyte disturbances (e.g., hypokalemia, hypomagnesemia) from amphotericin B
Bone marrow suppression and gastrointestinal upset from flucytosine
Infusion reactions (e.g., fever, chills) with amphotericin B

Alternatives

High-dose fluconazole (800–1,200 mg/day) may be used in resource-limited settings or if flucytosine is unavailable — however, amphotericin B ± flucytosine remains the preferred induction therapy for optimal outcomes ^1 ^2

References

EMD
Cryptococcal Meningitis: ED presentations, evaluation, and management from emDocs
LI
Cryptococcosis from Life in the Fast Lane
WIK
Cryptococcosis from WikEM
IBC
Cryptococcus from IBCC
WIK
Cysticercosis from WikEM

Do you use steroids?

Summary

No, adjunctive corticosteroids are not used in the treatment of cryptococcal meningitis, as they have been associated with increased mortality and do not improve outcomes.

Acute cryptococcal meningitis should be managed primarily with antifungal therapy—induction with amphotericin B plus flucytosine followed by consolidation with high-dose fluconazole—and steroids have not been shown to improve survival in this setting ^1 ^2.

References

PEM
Steroids for Hives from PEMSource
EMO
These are the ‘Roids you are looking for – Steroids in the ED from EMOttawa
EMD
Systemic Steroids: An ED Focused Overview from emDocs
EMO
To ‘Roid or not to ‘Roid: Steroids in the ED! from EMOttawa
WIK
Corticosteroids from WikEM

Powered by Cortex AI

We use advanced natural language processing to understand the nuance of complex medical queries, moving beyond keyword matching to true semantic understanding.

Semantic Search Real-time Indexing Mobile First

Query: "ED treatment exertional heat stroke"

Retrieving from: LITFL, EmCrit, IBCC...

Synthesized Clinical Answer