Thrombolysis in Myocardial Infarction (TIMI) Score 

Updated: Jun 19, 2014
  • Author: Buck Christensen; more...
  • Print

Thrombolysis in Myocardial Infarction (TIMI) Score

The Thrombolysis in Myocardial Infarction (TIMI) Score is used to determine the likelihood of ischemic events or mortality in patients with unstable angina or non–ST-segment elevation myocardial infarction (NSTEMI). [1]

Each of the following criteria constitutes one point for TIMI scoring (see Table 1):

  • Age ≥65 years
  • Three or more risk factors for coronary artery disease (CAD) (family history of CAD, hypertension, hypercholesterolemia, diabetes mellitus, tobacco use)
  • Known CAD (stenosis >50%)
  • Aspirin use in the past 7 days
  • Severe angina (≥2 episodes in 24 hours)
  • ST deviation ≥0.5 mm
  • Elevated cardiac marker level

Table 1. TIMI Score (Open Table in a new window)

Score Risk of Death/MI/Urgent



Revascularization by Day 14



0-1 5%
2 8%
3 13%
4 20%
5 26%
6-7 41%

See also Medscape Reference’s TIMI Score calculator.