TIMI Risk Score for STEMI

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Clinical Use

A bedside risk score for risk assessment and management of fibrinolytic-eligible patients with STEMI

More Info

TIMI risk score for STEMI (ST-elevation myocardial infarction) is a convenient bedside clinical risk score for predicting 30-day mortality at presentation of fibrinolytic-eligible patients with STEMI.

There are 8 independent factors used in this score.

Factors Points
Age < 65 years 0
Age 65-74 2
Age ≥ 75 3
DM or Hypertension or Angina 1
Systolic BP < 100 mmHg 3
Heart Rate > 100 2
Killip Class II-IV 2
Weight < 67kg (147.7 lbs) 1
Anterior ST Elevation or LBBB 1
Time to Treatment > 4 hours 1

 

Risk of death at 30 days based on TIMI risk score
Risk Score Risk of Death at 30 Days
0 0.8%
1 1.6%
2 2.2%
3 4.4%
4 7.3%
5 12.4%
6 16.1%
7 23.4%
8 26.8%
>8 35.9%

Reference

1. Morrow DA et al. TIMI risk score for ST-elevation myocardial infarction: A convenient, bedside, clinical score for risk assessment at presentation: An intravenous nPA for treatment of infarcting myocardium early II trial substudy. Circulation. 2000 Oct 24;102(17):2031-7. Abstract

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Developer: Sirikarn Napan, MD, FACC