[Clinico-instrumental parallels in ischemic heart disease]

Area of Science:

• Cardiology
• Noninvasive Cardiac Diagnostics
• Coronary Artery Disease

Background:

• Coronary angiography is the gold standard for assessing coronary artery stenosis.
• Noninvasive functional tests are crucial for evaluating cardiac function and exercise capacity.
• Integrating these diagnostic modalities can improve patient management.

Purpose of the Study:

• To investigate the correlation between coronary angiographic findings and noninvasive functional test results.
• To determine the relationship between the degree of coronary artery stenosis and exercise tolerance.
• To explore the association between coronary stenosis and the double product during stress testing.

Main Methods:

• Coronary angiography was performed on 50 patients.
• Noninvasive functional tests including electro- and echocardiography, and bicycle ergometry were utilized.
• Correlation analysis was used to compare angiographic data with functional test outcomes.

Main Results:

• A significant relationship was established between the extent of significant coronary artery stenosis (over 50% lumen narrowing) and exercise tolerance.
• The degree of coronary artery stenosis correlated with the double product (heart rate × systolic blood pressure) during stress testing.
• Noninvasive functional tests showed varying degrees of correlation with angiographic findings.

Conclusions:

• The severity of coronary artery disease, as assessed by angiography, is associated with reduced exercise tolerance and altered double product response.
• Noninvasive functional tests can provide valuable information that correlates with the anatomical severity of coronary artery disease.
• These findings support the combined use of invasive and noninvasive methods for comprehensive cardiovascular assessment.