[Stress-Echocardiography in Low-risk Acute Coronary Syndrome Without Persistent ST-segment Elevation Diagnostic
E E Abramenko1, T R Ryabova1, V V Ryabov1
1Research Institute of Cardiology, Tomsk National Research Medical Center of the Russian Academy of Sciences, Tomsk.
Insights
Enhanced stress echocardiography (EchoCG) can diagnose coronary blood flow issues in low-risk acute coronary syndrome patients. This non-invasive method improves cardiac function assessment and patient prognosis beyond standard procedures.
Area of Science:
- Cardiology
- Diagnostic Imaging
- Exercise Physiology
Background:
- Non-ST-elevation acute coronary syndrome (NSTE-ACS) diagnosis can be challenging in low-risk ECG patients.
- Occult coronary artery disease requires sensitive diagnostic tools beyond standard electrocardiograms.
- Stress echocardiography (EchoCG) offers a non-invasive, radiation-free imaging modality.
Approach:
- This review evaluates an enhanced stress EchoCG protocol for diagnosing coronary blood flow disorders.
- The protocol supplements standard contractility analysis with heart rate reserve and coronary reserve assessments.
- This advanced approach aims for a comprehensive evaluation of cardiac function during stress.
Key Points:
- Enhanced stress EchoCG effectively identifies transient disturbances in local myocardial contractility.
- Assessment of heart rate reserve and coronary reserve provides deeper insights into cardiac function.
- This method is valuable for patients with NSTE-ACS presenting with low-risk ECG findings.
Conclusions:
- Enhanced stress EchoCG is a promising tool for diagnosing occult coronary artery disease.
- It enables a more complete characterization of heart function during exercise.
- This approach aids in accurate clinical prognosis and guides patient management decisions, including revascularization selection.
Abstract:
This review addresses the capabilities of stress EchoCG as a simple, non-invasive, non-radiation method for diagnosing occult disorders of coronary blood flow in patients with non-ST-elevation acute coronary syndrome on a low-risk electrocardiogram. The capabilities of the enhanced stress EchoCG protocol are based on supplementing the standard detection of transient disturbances of local contractility, generally associated with coronary artery obstruction, with an assessment of the heart rate reserve, coronary reserve and other parameters. This approach is considered promising for a more complete characterization of heart function during exercise and an accurate prognosis of the clinical case, which allows determining the tactics for patient management not limited to selection for myocardial revascularization.
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