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
TRI ≤12. 30-day mortality ~1.1% (bottom tertile).
→ Standard STEMI management. Primary PCI within 90 minutes. Dual antiplatelet, anticoagulation.
TRI 13–29. 30-day mortality ~3.3% (middle tertile).
→ Aggressive STEMI management. Cardiac ICU. Consider P2Y12 intensification.
TRI ≥30. 30-day mortality ~7.5%+ (top tertile).
→ Highest-risk STEMI. Immediate cath lab activation. Consider IABP or mechanical circulatory support if cardiogenic shock. ICU admission.
Interpretation bands for the TIMI Risk Index. Apply clinical judgement and local guidance.
References
- Morrow DA et al. TIMI risk score for ST-elevation myocardial infarction: a convenient, bedside, clinical score for risk assessment at presentation. Circulation. 2000;102(17):2031-2037.
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.