Private ECG (Electrocardiogram) London

What Is An Electrocardiogram(ECG)?

Electrocardiogram (ECG) is a quick, painless diagnostic test that records your heart’s electrical activity. The recorded data appears as a waveform, which your cardiologist analyses to assess your cardiac rhythm and detect any abnormalities.

Your ECG Appointment: Before, During, and After an ECG Test

Before Your ECG Test

No special preparation is usually required. Wear a top that’s easy to remove, and avoid body lotion or moisturiser on the day, as it can interfere with electrode contact. Don’t fast or stop your medicine unless your doctor advises otherwise. If you have dense chest hair, you may be asked to shave small areas to ensure accurate electrode placement.

During Your ECG Test

Small adhesive electrodes are attached to the patient’s chest and limbs at different points – typically four on your wrists and ankles, and six across your chest. Leads are attached to the ten electrodes, which produce twelve ECG signals representing different surfaces of the heart. A small amount of lubricating gel is applied to your skin to help the probe move easily on the skin and improve signal quality. The electrodes are connected to the ECG machine, which records your heart’s electrical activity as a graph. Usually, the ECG test takes around 10 minutes, during which the pattern of your heart’s electrical impulses is monitored.

After an ECG Test

In most cases, you’ll receive your ECG results and a full explanation the same day, along with advice on whether any further investigation is needed.

ECG RESULTS AND REPORT

Once your ECG is done, you will receive your report on the same day as your appointment. One of our cardiac specialists will review your report and share findings with you, considering your symptoms, medical history, and overall heart health. You may be recommended further tests and treatment, where required, as part of your ongoing care.

What Does An ECG Waveform Explain?

An ECG waveform, also known as the PQRST wave, represents the cardiac rhythm in different sections.

Types of ECG Tests

ECG Via Holter Monitor

A Holter monitor is a portable ECG device that records your heart’s electrical activity continuously for 24 hours or more. It helps your cardiologist detect irregular heart rhythms and assess your heart’s function during normal daily activities.

Stress ECG 

An Exercise ECG, or stress ECG, helps monitor your breathing rate and BP during a physical activity such as walking on a treadmill or cycling. It helps detect cardiac conditions, such as narrowing of the arteries, valvular heart disease or CAD, as well as determine safe exercise levels after a heart attack or surgery.

Resting 12-Lead EKG

A resting 12-lead ECG is a standard test performed while you lie still. It records your heart’s electrical activity from 12 points on the body, helping detect heart conditions early, even before symptoms appear.

Cardiopulmonary Exercise Test (CPET)

A Cardiopulmonary Exercise Test (CPET) measures how your heart, lungs, and muscles respond during exercise. It helps identify underlying cardiac or pulmonary diseases and determine how well your body uses oxygen during physical activity.

Remote Cardiac Diagnostics: Home ECGs and Holter Monitoring

Not every patient needs to visit Harley Street for testing. Where clinically appropriate, we offer home ECG testing and ambulatory Holter monitoring all across the UK, as part of our remote cardiac diagnostics service. Ideal for those who have travel issues, have a busy schedule, or prefer heart monitoring from the comfort of their own home.

Home ECG Monitoring

A portable ECG device is provided so you can record your heart’s electrical activity without attending the clinic in person.

Holter Monitoring (24 hours to 14 days)

A small wearable ECG monitor continuously records your heart rhythm during daily life and while you sleep, catching irregular beats that a single resting ECG might miss.

Your cardiologist will review and interpret your results and arrange a follow-up appointment, where needed, for detailed diagnostics and treatment discussions.

Why You Might Need a Private Electrocardiogram?

An electrocardiogram is a simple yet highly useful heart test to identify early warning signs of heart disease, track ongoing symptoms, and decide on timely treatment. Commonly, this test is performed for the following reasons:

To Assess General Cardiac Symptoms

ECG tests can help detect the underlying causes of cardiac symptoms, such as irregular heartbeat, breathlessness, dizziness, too fast (tachycardia) or too slow heartbeat (bradycardia), uncontrolled blood pressure, palpitations, and non-emergency chest pain.

Arrhythmias

An ECG scan is an effective diagnostic tool for detecting arrhythmias or abnormal heart rhythms that may cause palpitations, dizziness, or fainting. Early detection can help your doctor determine the underlying cause and prevent complications.

Myocardial Infarction (Heart Muscle Damage)

An Electrocardiogram can identify heart rhythm disturbances associated with myocardial infarction (heart muscle damage). An ECG test can detect any blood flow restriction through the heart, helping clinicians diagnose the severity and location of the affected area.

Congenital Heart Defects

An ECG can also detect electrical abnormalities caused by congenital heart defects. This cardiac test helps in early identification of rhythm disturbances or structural concerns, making it possible to start treatment on time and manage problems from an early stage of life.

History of a Previous Heart Attack

After a heart attack, an ECG is essential for identifying ongoing electrical changes, scarring, or reduced heart muscle function. It helps assess recovery, detect silent complications, and guide long-term treatment to reduce the risk of future cardiac events.

Pacemaker Monitoring 

ECGs are generally used to identify the functioning of the pacemakers, i.e., if they are delivering impulses at the right time. A proper ECG test can identify any errors, lead issues, or rhythm irregularities to ensure optimal performance. 

Evaluating Treatment Effectiveness

An ECG allows clinicians to monitor how well heart medications or interventions are working. It helps assess improvements in cardiac rhythm, detect side effects, and adjust treatment plans to achieve better heart health outcomes.

How Much Does a Private ECG Cost in London?

The standard electrocardiogram at The National Heart Clinic, London costs £150, which includes a face-to-face consultation with your consultant cardiologist and a detailed discussion of your results. Results are usually provided the same day.

Book Your Private ECG In London

At The National Heart Clinic, you receive the best cardiac care from nationally recognised ECG specialists in London. We offer precise diagnosis, fast access, and same-day appointments for urgent or emergency needs. Our 24/7 local support ensures you receive reliable heart ECG testing and care you can rely on.

Book a private ECG at Harley Street Clinic in London for fast, accurate heart monitoring with same-day results. Schedule an affordable ECG appointment with specialist cardiac consultants to monitor your heart health.

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