II. Definition
- Stress Echocardiogram using Dobutamine as Stressor
III. Indications: Pharmacologic Stress Test
- Myocardial viability evaluation
- Heart Valve and left ventricular function evaluation
- Concurrent medication use contraindicating Adenosine
- Comorbid conditions contraindicating Adenosine
- Bronchospastic lung disease
- Severe Chronic Obstructive Pulmonary Disease (COPD)
- Critical Carotid Stenosis
IV. Contraindications
- Concurrent Beta-Blocker use
- Body habitus interferes with Echocardiogram windows
- Optison contrast can be used to increase accuracy
V. Advantages
- Beta Adrenergic Agonist increases coronary flow 3x
- More specific than Adenosine (but less sensitive)