[TIMI risk score validation for patients with acute coronary syndrome without ST elevation]
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Updated: Jun 18, 2026

Signal Acquisition, Score Interpretation, and Economics of a Non-Invasive Point-of-Care Test for Coronary Artery Disease
Published on: August 9, 2024
Rodrigo H Bagur1, Fernando M Urinovsky, Alejandro E Contreras
1Unidad de Cuidados Intensivos Cardiovasculares, Hospital Privado de Córdoba. rodrigobagur@yahoo.com
Insights
The Thrombolysis in Myocardial Infarction (TIMI) risk score effectively predicts cardiovascular events in patients with non-ST elevation acute coronary syndromes (NSTE-ACS). Intermediate and high TIMI scores indicate a greater risk of adverse outcomes within six months.
Area of Science:
- Cardiology
- Internal Medicine
- Clinical Research
Background:
- Non-ST elevation acute coronary syndromes (NSTE-ACS) are a significant cause of hospitalizations, contributing to 10-15% of annual infarcts or deaths.
- Effective risk stratification is crucial for managing NSTE-ACS patients and optimizing treatment strategies.
Purpose of the Study:
- To evaluate the 6-month cardiovascular event rates in patients hospitalized for NSTE-ACS.
- To validate the predictive accuracy of the Thrombolysis in Myocardial Infarction (TIMI) risk score in this patient cohort.
Main Methods:
- A retrospective analysis of 204 patients admitted with NSTE-ACS.
- Telephone follow-up at 6 months to assess combined endpoints: death, re-admission for acute coronary syndrome, and revascularization.
- Application of the TIMI risk score for risk stratification.
Main Results:
- The study included 204 patients (70.2% male, mean age 64.5 years).
- TIMI risk score distribution: 25.5% low risk, 52% intermediate risk, 22.5% high risk.
- A significant, progressive increase in combined cardiovascular events was observed with increasing TIMI risk scores (p < 0.001).
Conclusions:
- The TIMI risk score demonstrated good correlation with subsequent cardiovascular events at 6 months in the studied NSTE-ACS population.
- Intermediate and high TIMI risk scores are associated with a higher likelihood of adverse cardiovascular events.
- The findings support the utility of the TIMI risk score for risk stratification and management decisions in NSTE-ACS patients.
Abstract:
Non-ST elevation acute coronary syndromes (NSTE-ACS) are frequent cause of hospitalization, being responsible for 10-15% of infarcts or deaths per year. The study was designed to analyze 6 months follow-up of cardiovascular events as well as to validate the Thrombolysis in Myocardial Infarction (TIMI) risk score for patients hospitalized for NSTE-ACS. We retrospectively analyzed patients admitted with NSTE-ACS. Telephone follow-up were performed at 6 month. Combination of death, re-admission for acute coronary syndrome and revascularization were considered as end point. Two hundred and four patients were included for the analysis. There were 70.2% males, with a mean age of 64.5 +/- 11.8 years. After the initial evaluation, we diagnosed unstable angina in 34.6% of cases, MI in 38.9% of cases, and 26.4% of patients were categorized as "non coronary chest pain". Applying the TIMI risk score, 52 (25.5%) patients had low risk, 106 (52%) intermediated risk, and 46 (22.5%) high risk. The global mortality was 12.3%. We found a progressively and significant increase in the rate of combined events as the TIMI score increase (p < 0.001). We conclude that in our population, the intermediated and high TIMI risk score was well related to newer cardiovascular events at 6 month follow-up.
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