Chest Pain, Angina, Angina Pectoris, Coronary Artery Disease
Conditions
Keywords
stress echocardiography, coronary ct angiography
Brief summary
The purpose of this study is to determine whether stress echocardiography or computed tomography (CT) of the heart is better at diagnosing emergency room chest pain patients to select appropriate candidates for hospitalization and further work-up.
Interventions
Stress echocardiography will be performed once. Treadmill stress is default. Patients that cannot exercise will receive dobutamine stress with or without atropine. Definity intravenous contrast will be given when needed.
64-detector, resting EKG-gated coronary CT angiography will be performed once. Patients with elevated heart rates will be given oral and/or intravenous metoprolol. Prospective gating with reduced tube current will be default. Retrospective gating with tube current modulation will be used in patients with higher heart rates.
Sponsors
Study design
Eligibility
Inclusion criteria
* Presentation to the Emergency Department with chest pain * Low-to-intermediate risk of coronary disease per Diamond-Forrester criteria * Free of known coronary artery disease
Exclusion criteria
* Inability to undergo both stress echo or coronary CT for any reason * Contraindication to intravenous iodinated contrast * Dysrhythmia precluding EKG gating * Heart rate greater than 60 with contraindication to beta blockers * Administration of beta blockers within the last 12 hours * Known severe cardiac valvular disease or pulmonary hypertension * Stress echocardiography, coronary CT or catheterization within the last 6 months
Design outcomes
Primary
| Measure | Time frame |
|---|---|
| Hospital admission | 30 days |
Secondary
| Measure | Time frame |
|---|---|
| Hospital length of stay | 30 days |
| Estimated cost of initial care | 30 days |
| Emergency Department length of stay | 30 days |
| Death | 30 days and 1 year |
| Non-fatal myocardial infarction | 30 days and 1 year |
| Repeat visits to the Emergency Department | 30 days and 1 year |
Countries
United States