TIMI Risk Score (STEMI) — free guideline decision tool
Predict 30-day mortality in STEMI with the TIMI risk score.
Open guideline tool →Guideline-based
Implements the decision logic from published clinical guidelines.
Runs in your browser
No installation. Enter the patient's values and get a guideline recommendation instantly.
Data stays local
Nothing is uploaded. Results are for licensed clinicians only.
Worked calculation
The values below come from this tool's own example placeholders and are computed server-side with the formula shown on this page, so the arithmetic can be checked quickly. It demonstrates how to substitute values only — it is not clinical advice and not a real case.
| Age | < 65 (0) |
|---|---|
| Diabetes, hypertension or angina | No |
| Systolic BP < 100 mmHg | No |
| Heart rate > 100 bpm | No |
| Killip class II–IV | No |
| Weight < 67 kg | No |
| Anterior STEMI or LBBB | No |
| Time to treatment > 4 h | No |
→TIMI STEMI0/14
- Risk：Low risk
- Note：30-day mortality rises steeply with score (≈ 1% at 0 to > 30% at ≥ 8 in the original cohort).
| Age | ≥ 75 (3) |
|---|---|
| Diabetes, hypertension or angina | Yes (+1) |
| Systolic BP < 100 mmHg | Yes (+3) |
| Heart rate > 100 bpm | Yes (+2) |
| Killip class II–IV | Yes (+2) |
| Weight < 67 kg | Yes (+1) |
| Anterior STEMI or LBBB | Yes (+1) |
| Time to treatment > 4 h | Yes (+1) |
→TIMI STEMI14/14
- Risk：High risk
- Note：30-day mortality rises steeply with score (≈ 1% at 0 to > 30% at ≥ 8 in the original cohort).
Common questions
What is TIMI Risk Score (STEMI)?
Predict 30-day mortality in STEMI with the TIMI risk score.
How is TIMI Risk Score (STEMI) calculated? What is the core formula?
Weighted: age 65–74 (2)/≥75 (3), DM/HTN/angina (1), SBP < 100 (3), HR > 100 (2), Killip II–IV (2), weight < 67 kg (1), anterior STEMI/LBBB (1), time to treatment > 4 h (1).
When is TIMI Risk Score (STEMI) used?
Early prognostic stratification at STEMI presentation.
What are the key clinical points for TIMI Risk Score (STEMI)?
Mortality rises steeply with score. Provides prognosis, not a reperfusion decision. Distinct from the TIMI UA/NSTEMI score.
What are the limits and cautions when using TIMI Risk Score (STEMI)?
For licensed clinicians and clinical researchers. Interpret results with history, investigations and local protocols; not a diagnosis or prescription, and not a substitute for multidisciplinary decision-making or local guidelines.
How is TIMI Risk Score (STEMI) calculated in practice? Can you show a worked example?
Inputs: Age < 65 (0), Diabetes, hypertension or angina No, Systolic BP < 100 mmHg No, Heart rate > 100 bpm No, Killip class II–IV No, Weight < 67 kg No, Anterior STEMI or LBBB No, Time to treatment > 4 h No → Result: TIMI STEMI 0 /14（Risk: Low risk, Note: 30-day mortality rises steeply with score (≈ 1% at 0 to > 30% at ≥ 8 in the original cohort).） Inputs: Age ≥ 75 (3), Diabetes, hypertension or angina Yes (+1), Systolic BP < 100 mmHg Yes (+3), Heart rate > 100 bpm Yes (+2), Killip class II–IV Yes (+2), Weight < 67 kg Yes (+1), Anterior STEMI or LBBB Yes (+1), Time to treatment > 4 h Yes (+1) → Result: TIMI STEMI 14 /14（Risk: High risk, Note: 30-day mortality rises steeply with score (≈ 1% at 0 to > 30% at ≥ 8 in the original cohort).）
Run TIMI Risk Score (STEMI) now
Predict 30-day mortality in STEMI with the TIMI risk score.
Open guideline tool →For licensed clinicians. Not a substitute for clinical judgement.
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