Coronary Artery Disease, Cardiomyopathy, Heart Failure
Conditions
Brief summary
Coronary artery disease (CAD, cholesterol plaque buildup in the heart arteries) is the most common cause of left ventricular systolic dysfunction (weakening of the heart muscle). The standard test to find coronary artery disease is coronary angiography. This test is highly accurate but is invasive and carries a small risk of complications. This study investigates ultrasound of the carotid (neck) arteries as a screening test for severe coronary artery disease as a cause of left ventricular systolic dysfunction. It is hypothesized that carotid ultrasound will have excellent negative predictive value for severe CAD.
Detailed description
Coronary artery disease (CAD, cholesterol plaque buildup in the heart arteries) is the most common cause of left ventricular systolic dysfunction (weakening of the heart muscle). The standard test to find coronary artery disease is coronary angiography. This test is highly accurate but is invasive and carries a small risk of complications. This study investigates ultrasound of the carotid (neck) arteries as a screening test for severe coronary artery disease as a cause of left ventricular systolic dysfunction. It is hypothesized that carotid ultrasound will have excellent negative predictive value for severe CAD.
Interventions
Measurement of intima-media thickness
Sponsors
Study design
Eligibility
Inclusion criteria
* LVEF 40% or less
Exclusion criteria
* Prior diagnosis of coronary or carotid obstructive atherosclerosis
Design outcomes
Primary
| Measure | Time frame |
|---|---|
| Diagnostic accuracy for severe CAD | 1 Day |
Secondary
| Measure | Time frame |
|---|---|
| Diagnostic accuracy for significant CAD | 1 Day |