TIMI Risk Index for STEMI
Simple bedside risk index predicting 30-day mortality in STEMI. Calculated as: heart rate × (age/10)² / systolic BP.
Score interpretation
30-day mortality 0.8 % in InTIME II (Morrow 2001).
→ Standard STEMI pathway; reperfusion per local protocol.
30-day mortality 1.9 % in InTIME II.
→ Standard STEMI pathway; reperfusion per local protocol.
30-day mortality 3.3 % in InTIME II.
→ Reperfusion per local protocol; monitored bed.
30-day mortality 7.3 % in InTIME II.
→ Higher-risk STEMI: senior review, prompt reperfusion, coronary care.
30-day mortality 17.4 % in InTIME II.
→ Highest-risk STEMI: senior review, prompt reperfusion, assess for cardiogenic shock.
Interpretation bands for the TIMI Risk Index. Apply clinical judgement and local guidance.
References
- Morrow DA, et al. A simple risk index for rapid initial triage of patients with ST-elevation myocardial infarction: an InTIME II substudy. Lancet. 2001;358(9293):1571–1575.
Related
Curated clinical cross-links plus same-class fallbacks.
- ADHERE Algorithm for Acute Decompensated Heart Failure · Risk Stratification
- LACE Index for Readmission Risk · Risk Stratification
- Charlson Comorbidity Index (CCI) — Detailed · Risk Stratification
- GI-BLEED Score for Upper GI Bleeding · Risk Stratification
- HCT-CI — Haematopoietic Cell Transplant Comorbidity Index · Risk Stratification
- San Francisco Syncope Rule (SFSR) · Risk Stratification
- Acute Heart Failure · ESC 2021 Heart Failure Guidelines; NICE NG106
- NSTEMI / Unstable Angina · ESC 2020 NSTEMI Guidelines; NICE NG185
- New-Onset Atrial Fibrillation · ESC 2020 AF Guidelines; NICE NG196
- Hypertensive Emergency · ESC/ESH 2018 Hypertension Guidelines; NICE NG136
- Bradycardia Management · Resuscitation Council UK ABCDE; ESC 2021 Pacing Guidelines
- Ventricular Tachycardia / Fibrillation · Resuscitation Council UK ACLS; ESC 2022 Ventricular Arrhythmia Guidelines
Decision support only — verify against a current formulary, NICE, or your local guideline before clinical use.