TIMI STEMI Score
- Created by
- Renato Passos, Eng. de Software
- Reviewed by
- Renato Passos, Eng. de Software
Last updated: Apr 18, 2026
Formula
TIMI
About this calculator
The TIMI STEMI Score calculator is a clinical tool to assess mortality risk in patients with ST-segment elevation myocardial infarction (STEMI). It ranges from 0 to 14 and factors in variables like age, systolic blood pressure, ST elevation on ECG, respiratory failure, diabetes, and others. It helps clinicians decide on the most appropriate treatment and predict complications.
The calculator operates using a formula that assigns points to relevant clinical variables. For instance, age over 65 years, systolic blood pressure below 100 mmHg, and ST elevation in multiple leads increase the score. Higher scores indicate a greater risk of adverse outcomes, such as death or heart attack during follow-up.
This tool is used in cardiological emergencies, especially when STEMI is suspected. It should be applied after initial diagnostic confirmation and guides treatment prioritization, such as angioplasty or thrombolysis. Remember, the TIMI score is a clinical aid and does not replace the physician's judgment, which considers additional signs and complementary tests.
Common precautions include ensuring patient data accuracy, such as time since symptom onset and medication response. The score may be less precise in atypical cases or those with unlisted comorbidities. Always confirm results with a healthcare professional before making medical decisions.
Frequently asked questions
What does a TIMI score above 10 mean?
A score over 10 indicates high risk for complications like death or heart attack. Patients with these results typically require urgent interventions, such as angioplasty, and close monitoring.
Does the TIMI score replace other STEMI tests?
No, the TIMI is a guide that complements tests like ECG and blood work. Always consult a cardiologist to evaluate all factors.
Can I use the calculator at home?
The tool is intended for healthcare professionals. Use it only with a doctor's supervision, who will validate the results and guide treatment.
How many variables influence the score?
The TIMI considers seven main variables: age, blood pressure, ST elevation, respiratory failure, diabetes, history of heart attack, and time since symptoms.