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The information provided in this article is for educational purposes only and is based on NHS recommendations. It is not a substitute for professional medical advice. Always consult your doctor or a qualified healthcare provider for advice on medical conditions or treatments.

What is ECG?

An electrocardiogram (ECG) is a non-invasive diagnostic test that records the electrical activity of your heart. This essential cardiac examination is widely available at our private London clinic, where we employ cutting-edge technology to provide accurate and timely results.

During an ECG, small electrodes are placed on your chest, arms, and legs to detect the electrical signals produced by your heart with each beat. These signals are then translated into a graph, allowing our expert cardiologists to analyse your heart's rhythm, rate, and overall function. This quick and painless procedure is a cornerstone of cardiovascular diagnostics, offering valuable insights into your heart health without any discomfort or risk.

What is the indication for an ECG?

ECGs are indicated for a wide range of circumstances, from routine health check-ups to investigating specific cardiac symptoms. At our London clinic, we recommend ECGs for patients experiencing chest pain, shortness of breath, palpitations, or dizziness, as these symptoms may indicate underlying heart issues that an ECG can help identify.

Additionally, ECGs are crucial for individuals with a family history of heart disease, those starting new cardiac medications, or patients undergoing pre-operative assessments. Regular ECG screenings are also beneficial for older adults and individuals with risk factors such as high blood pressure, diabetes, or high cholesterol. By offering swift and convenient ECG appointments, our clinic ensures that London residents can receive timely cardiac evaluations, potentially detecting heart problems early when they're most treatable.

What conditions can be diagnosed with an ECG?

An ECG is a versatile diagnostic tool that can help identify various heart conditions. At our London clinic, our experienced cardiologists use ECG results to diagnose or assess:

  1. Arrhythmias (irregular heartbeats)
  2. Coronary artery disease
  3. Heart attacks (both current and previous)
  4. Atrial fibrillation
  5. Cardiomyopathy (heart muscle disease)
  6. Pericarditis (inflammation of the heart's protective sac)
  7. Electrolyte imbalances affecting heart function
  8. Structural heart abnormalities

Is ECG dangerous?

ECGs are completely safe and pose no risk to patients. This non-invasive procedure doesn't emit radiation or involve any harmful substances, making it one of the safest diagnostic tools available in modern cardiology. At our private London clinic, we prioritise patient comfort and safety in all our procedures, including ECGs.

The ECG simply records your heart's natural electrical activity without interfering with its function. Even for patients with pacemakers or other implanted cardiac devices, ECGs remain a safe and valuable diagnostic tool. Our skilled technicians use state-of-the-art equipment to ensure a comfortable, worry-free experience for all patients. The procedure is painless and typically takes only a few minutes, providing crucial information about your heart health without any danger or side effects. This makes ECGs an ideal choice for regular heart check-ups, allowing London residents to monitor their cardiovascular health with confidence and peace of mind.

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We provide a comprehensive range of services, from private GP consultations and specialised men's and women's health care to advanced ultrasound scans and proactive health screenings, all within a reassuring and state-of-the-art environment.

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Frequently Asked Questions

You have a question about ECG? We have an answer.

What does ECG stand for?

ECG stands for electrocardiogram. It's a non-invasive diagnostic test that records the electrical activity of your heart, providing valuable insights into your cardiovascular health. This abbreviation is widely used in medical settings across the UK and internationally. At our London clinic, we often use the term ECG when discussing this essential cardiac examination with our patients. It's important to note that in some countries, particularly the United States, you might hear the term EKG instead. Both ECG and EKG refer to the same procedure, with the 'K' in EKG coming from the original German spelling 'elektrokardiogramm'.

How is an ECG performed?

An ECG is performed by placing small, adhesive electrodes on specific areas of your body, typically your chest, arms, and legs. These electrodes are connected to an ECG machine, which detects and records the electrical signals produced by your heart with each beat. During the procedure at our London clinic, you'll be asked to lie still on an examination table while the ECG machine records your heart's activity, usually for about 30 seconds to a few minutes. Our skilled technicians ensure the electrodes are correctly positioned for optimal signal detection. The entire process is quick, painless, and non-invasive, making it a comfortable experience for our patients.

How long does an ECG take?

The actual recording of an ECG typically takes only a few minutes, often less than five. However, the entire appointment at our London clinic may last about 10-15 minutes, allowing time for preparation and any necessary adjustments. Our efficient process includes a brief explanation of the procedure, placement of the electrodes, the recording itself, and removal of the electrodes. We understand the value of your time, so we strive to make the ECG process as quick and seamless as possible without compromising on the quality of the results or your comfort.

Do I need to prepare for an ECG?

In most cases, there's minimal preparation required for an ECG. However, we recommend wearing comfortable, loose-fitting clothing that allows easy access to your chest. It's best to avoid applying lotions or oils to your skin on the day of the test, as these can interfere with the electrode's adhesion. If you're taking any medications, continue to take them as prescribed unless otherwise instructed by your doctor. At our London clinic, we advise patients to inform us of all current medications and any medical conditions before the ECG. This information helps us interpret your results more accurately and provide the best possible care.

Can I eat or drink before an ECG?

Yes, you can eat and drink as normal before an ECG. Unlike some other medical tests, an ECG doesn't require fasting or any special dietary restrictions. This makes it a convenient option for busy Londoners who can easily fit an ECG into their daily schedule without disrupting their routine. However, we do recommend avoiding caffeine for a few hours before your ECG if possible. Caffeine can sometimes affect your heart rate, potentially influencing the ECG results. If you've consumed caffeine before your appointment, simply let our staff know, and we'll take this into account when interpreting your ECG.

Is an ECG painful?

An ECG is completely painless. The procedure simply involves attaching small adhesive electrodes to your skin, which might feel slightly cool when first applied but cause no pain or discomfort. These electrodes only detect the electrical signals from your heart; they don't send any electricity into your body. At our London clinic, patient comfort is a top priority. Our experienced technicians are skilled at making the ECG process as comfortable as possible. If you have sensitive skin and are concerned about removing the electrodes, let us know, and we can use gentler adhesives or techniques to minimise any potential discomfort.

How often should I have an ECG?

The frequency of ECG tests depends on your individual health status, age, and risk factors. For many healthy adults, an ECG might be part of a routine health check-up every few years. However, if you have a history of heart problems or are at higher risk for cardiovascular disease, your doctor might recommend more frequent ECGs. At our London clinic, we offer personalised advice on ECG frequency based on your specific health profile. For instance, patients with conditions like high blood pressure, diabetes, or a family history of heart disease might benefit from annual ECGs. If you're experiencing symptoms such as chest pain, palpitations, or shortness of breath, we recommend scheduling an ECG promptly to assess your heart health.

Can ECG detect all heart problems?

While an ECG is a powerful diagnostic tool, it's important to understand that it can't detect all heart problems. An ECG is excellent at identifying issues related to your heart's electrical activity, such as arrhythmias or evidence of a heart attack. It can also provide clues about structural heart problems or coronary artery disease. However, some heart conditions may not always show up on an ECG, especially if they're not causing electrical disturbances at the time of the test. That's why at our London clinic, we often use ECGs in conjunction with other diagnostic tools like echocardiograms, stress tests, or blood tests to provide a comprehensive evaluation of your heart health. If you have ongoing concerns, our cardiologists may recommend additional tests to ensure a thorough assessment.

How quickly can I get my ECG results?

At our London clinic, we prioritise prompt delivery of ECG results. In most cases, you can receive your results immediately after the test is completed. Our experienced cardiologists can quickly interpret the ECG readout and provide you with an initial assessment on the spot. For a more detailed analysis, especially in complex cases, we might take a little more time to thoroughly review the results. However, even in these instances, you can typically expect to receive your comprehensive ECG report within 24 to 48 hours. We understand the anxiety that can come with waiting for medical results, so we strive to provide fast, accurate interpretations to all our London patients, ensuring you have the information you need about your heart health as quickly as possible.

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"Great experience. Frustratingly we had 3 NIPTs come back with no result so had to do 3 blood redraws but thanks to LPC’s persistence we finally got a result on the 4th draw. After the 3rd no result they also kindly offered us a free anomaly scan."

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Spital Clinic 5 Star Services in City of London. Reliable healthcare provider.

"I had a surprisingly positive experience. The most friendly and helpful staff, clean and beautiful premises. The visit was smooth and quick but never felt rushed and I was able to ask all the questions I had. Thanks so much!"

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Spital Clinic 5 Star Services in City of London. Reliable healthcare provider.

"The service was exceptional from the moment we booked to the moment we left the building post our appointment. The lovely colleagues at the main desk were great and approachable. They made the whole process very comforting."

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Spital Clinic 5 Star Services in City of London. Reliable healthcare provider.

"I really recommend this clinic, everything was smooth and perfect. All staff are helpful and our sonographer Miss Shaz is an expert on her job, she is very kind and explained everything that we asked. I am glad to choose LPC."

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Our medical centre is at 36 Spital Square, E1 6DY, City of London.