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Stress Echocardiogram

What it is

A stress echocardiogram assesses how the heart functions when working harder. It combines ultrasound imaging (non-invasive imaging of the heart) with exercise (usually on a treadmill) to safely increase the heart rate. The exercise portion of the test is designed to gradually increase the effort (or ‘stress’) placed on your heart. By comparing images at rest and under stress, the test helps identify areas of the heart that may not be receiving enough blood flow.     

Why its recommended

A stress echo is used to investigate symptoms such as chest discomfort, exertional breathlessness or reduced exercise tolerance. It is a key tool in assessing for coronary artery disease and determining whether there is evidence of strain or reduced blood supply to the heart during activity. The results guide decisions about further testing, treatment or the need for interventional procedures.

What to expect

A resting echocardiogram is performed first. You will then walk on a treadmill following a supervised protocol designed to gradually increase effort. Once the target heart rate is reached, we will then repeat the imaging process. Throughout the test, your ECG, heart rate and blood pressure are closely monitored by trained staff. The entire appointment usually takes 30–45 minutes.

Afterwards, your cardiologist reviews the images and clinical data from your appointment. Your cardiologist can then provide a clear interpretation and, where necessary, recommendations for next steps.