Chagas Disease: Stage, Whether to Treat, and Benznidazole or Nifurtimox Dose
Stages Chagas disease and says whether to treat (SBC 2023, PAHO 2019).
Open the tool → Runs in your browser. Data leaves only if you deliberately send a problem report from the interactive tool.
Example
- Phase
- Chronic
- Age in years
- 30
- Weight in kg
- 60
- Chronic: ECG
- Normal
- Chronic: LVEF %
- 60
- Chronic: heart failure
- Never
- Chronic: digestive form
- None
- Pregnant
- No
Result: Chronic Chagas disease, indeterminate form (stage A), adult under 50: treat. Benznidazole 300 mg a day (5 mg/kg), in 2-3 doses for 60 days.
The tool opens with these values already filled in. Replace them with your own.
What you enter
- Phase
- Age in years
- Weight in kg
- Chronic: ECG
- Chronic: LVEF % (optional)
- Chronic: heart failure
- Chronic: digestive form
- Pregnant
How this is calculated
Citation
Marin-Neto JA, Rassi A Jr, et al. SBC guideline on the diagnosis and treatment of patients with cardiomyopathy of Chagas disease - 2023. Arq Bras Cardiol. 2023;120(6):e20230269. PAHO. Guidelines for the diagnosis and treatment of Chagas disease. 2019, Annex 10. Read the source ↗
A reference and educational tool. Not medical, legal, or financial advice, and not a substitute for clinician judgment.