Definition of Stress echocardiography:

Stress echocardiography is a test that uses ultrasound to help diagnose heart disease.

How the test is performed:

A stress echocardiogram includes the following steps:

• A resting echocardiogram will be done first.
• You will exercise or be given medicine until you reach the target heart rate. This helps reveal how your heart works when you are active.
• Your blood pressure and heart rhythm (ECG) will be monitored throughout the procedure.
• Ultrasound images will be recorded during the procedure.
• Another echocardiogram is taken immediately after your target heart rate has been reached.

The ultrasound images will reveal any parts of the heart that may not be receiving enough blood or oxygen because of blocked arteries.

This test differs from an exercise stress test, which does not use ultrasound images.

How to prepare for the test:

Ask your health care provider if you should take any of your routine medicines on the day of the test (especially if you are taking heart medication). Some medicines may interfere with test results.

DO NOT eat or drink for at least 3 hours before the test.

Wear loose, comfortable clothing. You will be asked to sign a consent form before the test.

How the test will feel:

Electrodes (conductive patches) will be placed on your chest, arms, and legs to record the heart's activity. The preparation of the electrode sites on your chest may produce a mild burning or stinging sensation.

The blood pressure cuff on your arm will be inflated every few minutes, producing a squeezing sensation that may feel tight. Baseline measurements of heart rate and blood pressure will be taken before exercise starts.

You will start walking on a treadmill or pedaling a stationary bicycle. The pace and incline of the treadmill will gradually be increased.

Rarely, people experience chest discomfort, palpitations, dizziness, or shortness of breath during the test.

Why the test is performed:

The test is performed to see whether your heart is getting enough blood flow and, therefore, enough oxygen when it is put under stress. The intent is to discover and treat any blockage or disease before serious or life-threatening problems develop.

This test may also be used to monitor you if you have a known heart condition. For example, it can show if heart function and blood flow are stable if you have coronary artery disease.

What the risks are:

The risks are very low, and health care professionals will monitor you during the entire procedure. Rare complications include abnormal heart rhythm, heart attack, and collapse.

Special considerations:

The main benefit is that a stress echocardiogram is a very effective, noninvasive test that can help determine whether you have blockages in your coronary arteries and if so, how serious the problem is. Early diagnosis and monitoring of heart disease allows treatment to begin early.