Related Experiment Video
Updated: Jun 23, 2026

Coronary Progenitor Cells and Soluble Biomarkers in Cardiovascular Prognosis after Coronary Angioplasty
Published on: January 28, 2020
Patient stratification and its predictive value for cardiac events
1Department of Cardiology, The Cleveland Clinic Foundation, Ohio 44195, USA.
Insights
Improving outcomes for unstable coronary syndromes requires better risk stratification. Key predictors include age, blood pressure, heart rate, rest pain, ST changes, and troponin levels for optimized patient management.
Area of Science:
- Cardiology
- Clinical Trials
- Biomarkers
Background:
- Despite current therapies, patients with unstable coronary syndromes face significant risks of death and myocardial infarction.
- Existing treatments include aspirin, heparin, beta-blockers, nitrates, and calcium channel blockers, yet outcomes remain suboptimal.
Purpose of the Study:
- To identify key patient characteristics and biomarkers for improved risk stratification in unstable coronary syndromes.
- To optimize follow-up and therapeutic strategies based on admission risk factors.
Main Methods:
- Analysis of data from GUSTO IIb, TIMI IIIB, GUSTO IIa, and FRISC trials.
- Evaluation of clinical parameters (age, blood pressure, heart rate, rest pain) and electrocardiographic findings (ST changes).
- Assessment of cardiac biomarkers, specifically troponin-T and troponin-I levels.
Main Results:
- Age, low blood pressure, and high heart rate were significant predictors of outcome in both ST-elevation and non-ST-elevation myocardial infarction.
- Rest pain within 48 hours, number and extent of ST changes, and elevated troponin levels (T and I) were associated with increased cardiac events and mortality.
- Low-molecular-weight heparin therapy normalized outcomes for patients with elevated troponin-T.
Conclusions:
- Risk stratification using admission characteristics and biomarkers like troponin can significantly improve management of unstable coronary syndromes.
- Further research into targeted therapies based on identified risk factors is warranted.
Abstract:
In the GUSTO IIb trial, the combined rate of death and non-fatal myocardial infarction for patients with unstable coronary syndromes was nearly 10% despite therapy with aspirin, heparin or hirudin, beta-blockers, nitrates and, in selective patients, calcium channel blockers. Thus, therapy of such patients can be improved. Follow-up and therapy can be optimized if patients can be stratified by risk according to characteristics on admission. In the GUSTO IIb trial, age, low systolic and diastolic blood pressure and high heart rate were important determining factors of outcome in both ST- and non-ST elevation patients. In the TIMI IIIB study, rest pain within the first 48 h in patients with unstable angina or post-myocardial infarction was associated with a higher incidence of cardiac events. In addition, mortality was influenced by the number of leads with ST changes and the extent of ST deflection. Additional data from GUSTO IIa showed that elevated troponin-T levels were associated with a higher incidence of mortality. A similar relationship was shown with troponin-I in the TIMI study. The FRISC trial demonstrated that patients with elevated troponin-T levels treated with a low-molecular-weight heparin had comparable death/myocardial infarction rates to patients without elevated troponin-T levels.
More Related Videos
04:05Clinical Application of Phase Angle and BIVA Z-Score Analyses in Patients Admitted to an Emergency Department with Acute Heart Failure
Published on: June 30, 2023
05:16Cutoff Value of Phase Angle by Bioelectrical Impedance Analysis at Admission as a Prognostic Factor in Patients with Acute Heart Failure
Published on: June 10, 2025
Related Concept Videos
Blood Studies for Cardiovascular System II: CRP, Hcy, and Cardiac Natriuretic Peptide Markers
These markers indicate stress or strain on the heart muscle:
Natriuretic Peptides (BNP)
Cardiac myocytes produce these hormones in response to ventricular stretching...
Imaging Studies for Cardiovascular System VI: Calcium -Scoring CT
Cardiac Catheterization I: Pre-Procedure Overview
Acute Coronary Syndrome III: Diagnostic Studies
Heart Failure IV: Classification and Diagnostic Evaluation
Cardiomyopathy III: Hypertrophic Cardiomyopathy