TIMI Score for STEMI Calculator

Your details

Age is the strongest predictor in the TIMI STEMI model. Patients 75+ score 3 points.
Score 1 point if the patient has a known history of any of: diabetes mellitus, hypertension, or chronic stable angina.
A systolic blood pressure under 100 mmHg at presentation indicates cardiogenic compromise and carries the highest individual point weight.
Tachycardia on presentation reflects reduced cardiac output or compensatory sympathetic activation.
Killip II: jugular venous distension or crackles. Killip III: acute pulmonary edema. Killip IV: cardiogenic shock. Any of these scores 2 points.
Low body weight correlates with frailty and reduced physiological reserve. The cutoff of 67 kg was derived from the original InTIME II trial population.
Anterior STEMI or new left bundle branch block (LBBB) indicates a larger territory of myocardial jeopardy than inferior or lateral presentations.
Delay from symptom onset to reperfusion therapy greater than 4 hours is associated with larger infarct size and worse outcomes.
TIMI STEMI ScoreLow Risk
0

Total score from 0 to 14; higher = greater 30-day mortality risk

30-Day Mortality Risk0.8%
Risk CategoryLow
0 pts
Low<3Intermediate3-5High5-7Very High7+

TIMI Score 0 - Low (0.8% estimated 30-day mortality)

  • A TIMI STEMI score of 0 corresponds to an estimated 30-day all-cause mortality of 0.8% based on the InTIME II trial cohort.
  • Low-risk patients still benefit from timely reperfusion therapy. Continue standard STEMI protocol management.
  • The TIMI STEMI score was derived from patients receiving fibrinolytic therapy. For primary PCI outcomes, the PAMI risk score or GRACE score may offer additional context.

Next stepProceed with standard STEMI reperfusion pathway and continuous cardiac monitoring.

 = Powered by OnlyCalculators