Stress Echocardiography
A focused scan for Wall motion, Stress ischaemia, Valve stress.
Overview
Examines Wall motion, Stress ischaemia, Valve stress. Performed at an NABL-accredited Meridian Health centre with a same-day report and a free doctor review.
The full panel
3 areas across 1 groupEvery parameter, grouped by body system — no clicking to expand.
What this scan measures
Echocardiographic images of the heart taken at rest and again immediately at peak stress — either after treadmill exercise or with a drug such as dobutamine. The comparison shows whether any segment of the heart wall stops contracting normally when demand rises, and it can also assess valve behaviour under stress.
It is used when a treadmill ECG alone would be unreliable or has already been inconclusive — for example when the resting ECG is abnormal, when the patient is a woman in whom exercise ECG has a higher false-positive rate, or when a specific territory of the heart needs to be identified. It adds a picture of wall motion to the electrical information.
Symptoms that lead to this scan
- Exertional chest pain with an inconclusive treadmill test
- Chest pain with an abnormal resting ECG
- Breathlessness on exertion with known valve disease
- Assessment before non-cardiac surgery in higher-risk patients
- Follow-up of known coronary disease
Understanding your results
A new regional wall-motion abnormality appearing at stress suggests that the territory supplied by a particular artery is not getting enough blood — a finding that localises the problem and generally leads to a discussion about angiography. A normal stress echo is associated with a low short-term risk of cardiac events. As with all stress testing, image quality matters: poor acoustic windows, an inadequate heart rate, or beta-blockade can all render a study non-diagnostic rather than negative.
Why the preparation matters
A light meal is advised rather than a complete fast — you need enough energy to exercise, but a heavy meal makes nausea likely and impairs the image quality of the abdominal-window views. Avoid caffeine for at least 12 hours, particularly if a dobutamine study is planned, since caffeine interferes with some pharmacological protocols. Wear walking shoes and a two-piece outfit. Discuss beta-blockers with your cardiologist beforehand; the test is performed with a doctor and resuscitation facilities present.
Cardiac — safety and who should not be scanned
Full Cardiac guideNone of these tests uses ionising radiation — there is no X-ray dose at all in an ECG, an echocardiogram, a Holter or a treadmill test, and they can be repeated as often as clinically useful. The risk lies somewhere else entirely, and it belongs specifically to the stress tests: pushing the heart hard is how the test works, and in a small number of people that provokes chest pain, a significant rhythm disturbance or a fall in blood pressure. That is exactly why a stress test is performed in a room with a doctor present, continuous monitoring and a defibrillator to hand, why it is stopped the moment a stopping rule is met, and why it is not done at all when the heart is known to be unstable. A resting ECG or echocardiogram carries no such risk.
- Unstable chest pain, or a recent heart attack
- Chest pain that is new, worsening or happening at rest, and a heart attack within the last few days, are reasons not to perform a stress test — the test asks the heart to do the very thing that is already failing. Resting tests are safe and are usually what is done instead. Stress testing after an infarct happens later, on a defined protocol, once the picture is stable. The same applies to acute inflammation of the heart muscle or its lining, and to any acutely unwell patient.
- Uncontrolled arrhythmia, or severe aortic stenosis
- A rhythm disturbance that is not controlled, and a severely narrowed aortic valve causing symptoms, both make exercise testing hazardous, because exercise is what tips each of them over. An echocardiogram is done first in anyone with a known or suspected valve problem, precisely so this is known before a treadmill is considered.
- Blood pressure that is very high on the day
- Exercise raises blood pressure further, so it is measured before the test starts and a treadmill test is deferred when the reading is well above target — departments commonly use a threshold in the region of 200 systolic or 110 diastolic. This is a postponement, not a cancellation: the test is rebooked once the pressure is controlled.
- Being unable to walk on a treadmill
- Arthritis, a previous stroke, peripheral arterial disease, severe breathlessness at rest or any mobility limitation makes a treadmill test either unsafe or uninterpretable, because the heart never reaches the workload the test depends on. There is a well-established alternative — a pharmacological stress test, where a drug is given into a vein to make the heart behave as if it were exercising. Say what you can and cannot manage when you book, so the right test is arranged first time.
- Asthma or wheezy lung disease, if a vasodilator drug is planned
- Adenosine and dipyridamole, the drugs used for vasodilator stress testing, can trigger severe bronchospasm in people with asthma or other bronchospastic lung disease, and they are avoided in that situation. Dobutamine, which works differently, is generally used instead. Tell the team about any wheeze, inhaler use or lung disease before the test is booked, not on arrival.
- Caffeine and certain medicines before a pharmacological stress test
- Caffeine directly blocks the drugs used for vasodilator stress, so a scan can be wasted by a single cup of coffee. Avoid coffee, tea, cola, energy drinks, chocolate and decaffeinated coffee for 12 to 24 hours beforehand as instructed, and mention any theophylline-based tablet or inhaler. Which of your regular heart medicines to take or hold on the morning of a stress test — beta blockers especially, since they blunt the heart-rate response and can make the test uninterpretable — is decided by the doctor who requested it, never on your own.
- Practicalities for a 24-hour Holter
- The recorder and its electrodes must stay dry, so you cannot shower or bathe while wearing it. Tell the team about any adhesive or skin allergy, and keep the symptom diary honestly and by the clock — the report's most valuable line is whether what you felt matched what the trace was doing at that minute.
Who should consider this scan
- People with chest pain and a non-diagnostic treadmill test
- Patients whose resting ECG is abnormal at baseline
- Anyone with known coronary disease being reassessed
- Patients with valve disease and exertional symptoms
- Higher-risk patients before major non-cardiac surgery
Conditions it helps detect
How it works
Patient stories
96% recommend“The phlebotomist arrived exactly on time and was gentle. My report came in five hours with a doctor’s note.”
“Booked at night, sample collected next morning. The parameter breakdown is genuinely thorough.”
“Loved the free doctor review — she walked me through my vitamin D and thyroid results clearly.”