Carotid Intima-Media Thickness and Plaque Assessment Findings in Subjects Undergoing Stress Echocardiography For Risk Stratification
Overview
- Phase
- Not Applicable
- Intervention
- Not specified
- Conditions
- Cardiovascular Risk Stratification
- Sponsor
- Mayo Clinic
- Enrollment
- 73
- Locations
- 1
- Primary Endpoint
- % Patients w/ Abnormal IMT vs. % Patients w/ Positive Ischemia on Stress Echocardiogram
- Status
- Completed
- Last Updated
- 3 years ago
Overview
Brief Summary
The purpose of this research study is to determine if carotid artery ultrasound scanning can provide additional information for determining cardiovascular risk in patients.
Patients who agree to participate wil undergo non-invasive carotid intima-media thickness (CIMT) measurement and plaque assessment. Findings of CIMT will be compared to results of patient standard of care stress echocardiogram (SE) and of diastolic function.
We hypothesize tht 1) in patients undergoing SE for inappropriate or uncertain indications, CIMT and plaque assessment will provide useful risk stratification beyond use of traditional risk factors; 2) CIMT findings will correlate with results of SE in terms of exercise capacity and 3) Exercise capacity will correlate with diastolic function.
Investigators
Tasneem Z. Naqvi, M.D.
PI
Mayo Clinic
Eligibility Criteria
Inclusion Criteria
- •Asymptomatic
- •No prior cardiac history (MI, PTCA, CABG, angina)
- •No peripheral vascular disease
- •No history of stroke or TIA
- •Statins, antihypertensives, ASA treatment OK
Exclusion Criteria
- •History of CAD, CABG, PTCA, coronary or peripheral stenting
- •History of stroke/TIA/peripheral vascular disease
- •Inability to exercise on the treadmill
- •Unwilling/unable to sign informed consent
- •History of neck radiation or neck surgery or inability to obtain neck images
- •End stage renal disease
- •Preoperative evaluation
- •History of chest pain
Outcomes
Primary Outcomes
% Patients w/ Abnormal IMT vs. % Patients w/ Positive Ischemia on Stress Echocardiogram
Time Frame: Baseline
We are comparing the % of patients with abnormal IMT defined as presence of plaque (= or \>1.5mm) or CIMT \>75% percentile for age, race, and gender compared to % of patients with positive ischemia on stress echocardiogram as defined by a new wall motion abnormality on echocardiogram with stress.