Stress echocardiography: its emerging role in identifying viable myocardium
Curtis M. Rimmerman, MDAddress reprint requests to C.M.R., Department of Cardiology, F15, The Cleveland Clinic Foundation, 9500 Euclid Avenue, Cleveland, OH 44195.
Stress echocardiography is an emerging technique for identifying viable myocardium in patients with left ventricular systolic dysfunction or myocardial infarction.KEY POINTS
An enhancement in systolic wall thickening when low doses of dobutamine are infused indicates the myocardial segment is viable.
Dobutamine echocardiography is safe and readily portable and produces images immediately available for interpretation and clinical decision-making.
Dobutamine echocardiography will likely play a larger role in guiding coronary revascularization; however, larger studies are needed to fully define its role.