ACTION Score for STEMI Mortality Risk Assessment
The ACTION (Acute Coronary Treatment and Intervention Outcomes Network) Score predicts in-hospital mortality in patients with ST-elevation myocardial infarction (STEMI) using 10 simple clinical variables.
About
The ACTION Score was developed from the ACTION Registry-GWTG (Get With The Guidelines) database, a large US quality improvement registry. It predicts in-hospital mortality for STEMI patients. The simplified scoring system uses 10 variables: age, heart rate, systolic BP, creatinine, cardiac arrest at presentation, CHF/LVF, anterior MI, diabetes, prior CVA, and PAD. Each variable has weighted points, with age being the most influential. This bedside-friendly score provides rapid risk stratification without complex computation.
Formula
Age (0-30) + HR ≥90 (5) + SBP (0-10) + Cr >1.5 (7) + Arrest (13) + CHF (7) + Anterior MI (5) + Diabetes (4) + CVA (4) + PAD (4)
The ACTION Score assigns weighted points: age <50=0, 50-59=8, 60-69=15, 70-79=23, ≥80=30. HR ≥90 bpm=5. SBP <120=10, 120-139=5, ≥140=0. Creatinine >1.5 mg/dL=7. Cardiac arrest at presentation=13. CHF/LVF on presentation=7. Anterior MI location=5. Diabetes=4. Prior CVA/TIA=4. PAD=4. Total score categorizes in-hospital mortality risk: <30 low (1-2%), 30-40 moderate (3-5%), 41-50 high (6-9%), >50 very high (>10%).
Score Interpretation
The ACTION Score is derived from one of the largest STEMI registries in the US (>100,000 patients). It provides rapid bedside risk stratification for STEMI patients using variables available at presentation. Unlike GRACE which requires complex computation, the ACTION score is designed for quick bedside estimation. It helps guide triage decisions and intensity of care.
Low Mortality Risk — 0–29
In-hospital mortality 1-2%. Standard STEMI management.
Management: Standard STEMI management with guideline-directed medical therapy.
Moderate Mortality Risk — 30–40
In-hospital mortality 3-5%. Close monitoring in CCU.
Management: Close CCU monitoring. Early revascularization. Optimize medical therapy.
High Mortality Risk — 41–50
In-hospital mortality 6-9%. Aggressive management indicated.
Management: ICU/CCU admission. Early invasive strategy. Consider mechanical circulatory support.
Very High Mortality Risk — 51–999
In-hospital mortality >10%. Highest level of care required.
Management: ICU admission with hemodynamic monitoring. Urgent revascularization. Mechanical support. Multidisciplinary care.
Reference Ranges
| Population | Normal Range | Notes |
|---|---|---|
| STEMI patients at presentation | 0 - 80+ points | Higher scores indicate higher in-hospital mortality risk |
Dr. Khaled Hassan
Dr. Khaled is a cardiology consultant with experience in acute cardiac care.
View medical review board & editorial policy →Example Calculation
A 75-year-old man with anterior STEMI, HR 105 bpm, SBP 150 mmHg, Cr 1.0, no arrest, no CHF, no diabetes, no prior CVA, no PAD. ACTION: age 75 (23pts) + HR 105≥90 (5) + SBP≥140 (0) + Cr≤1.5 (0) + arrest (0) + CHF (0) + anterior (5) + diabetes (0) + CVA (0) + PAD (0) = 33 points — moderate mortality risk.
Related Conditions
Related Medications
Common Mistakes
Using ACTION Score for NSTEMI patients
The ACTION Score was specifically developed for STEMI patients. For NSTEMI, use the CRUSADE or GRACE scores.
Not including cardiac arrest in the score
Cardiac arrest at presentation is the highest single variable (13 points). Always include it if present.
Frequently Asked Questions
How does ACTION differ from GRACE?
Is ACTION score valid with contemporary STEMI management?
References
- Chin CT, Chen AY, Wang TY, et al. Risk adjustment for in-hospital mortality of contemporary patients with acute myocardial infarction: the ACTION Registry-GWTG model. Am Heart J. 2012;164(1):113-121. PubMed
- McNamara RL, Wang Y, Herrin J, et al. Effect of door-to-balloon time on mortality in patients with ST-segment elevation myocardial infarction. J Am Coll Cardiol. 2006;47(11):2180-2186. PubMed