Overview
Stress echocardiography is a diagnostic test that uses ultrasound to evaluate the heart and then stresses it, either with exercise or medication, to assess how well it functions when it has to work harder. When the heart is at rest, it may look normal, but when it has to work harder, underlying problems, like reduced blood flow, become more obvious. The test shows doctors real-time pictures of how the heart muscle moves and how the valves work. This helps them determine how well the heart pumps under stress.
Why it's Done
When there is suspicion that blood flow to the heart has slowed, this test is usually recommended. This can occur due to conditions such as coronary artery disease. If a patient has chest pain, shortness of breath, or unexplained fatigue during physical activity, they may be advised to undergo a stress echocardiogram. It can also be used to assess the severity of a known heart condition, how well the heart is functioning before surgery, or how well treatments are working. In some cases, it helps determine whether the symptoms are really heart-related.
What to Expect
The first step in the procedure is to obtain a baseline echocardiogram at rest. After that, the heart is stressed by either exercise, such as running on a treadmill or riding a stationary bike, or by medication that raises the heart rate. As the heart works harder, more ultrasound images are taken and compared with those taken at rest. The whole test usually takes between 30 and 60 minutes. During the stress phase, patients may feel out of breath or tired, as they do when exercising moderately. During the procedure, heart rate, blood pressure, and ECG are closely monitored to ensure safety.
Recovery & Outlook
Most patients can return to their normal activities the same day, and recovery is usually quick, especially with exercise. Stress echocardiography is a safe and useful way to find heart problems early. The results help decide what kind of treatment to give next, whether that means taking medicine, changing your lifestyle, or having more procedures.