Valentine’s Day is all about the heart ❤️
We write about it in poetry, draw it on cards, and gift it in chocolate form. But very few of us stop to think about the real heart, the one quietly beating inside your chest every second of the day.
If yours has ever fluttered, skipped, raced or thumped unexpectedly, that is not something to brush aside.
Sometimes those sensations are harmless. Sometimes they are not. The key is knowing the difference.
That is where a 24 hour ECG, also known as a Holter monitor, becomes incredibly valuable.
What is a 24 Hour ECG?
A 24 hour ECG is a form of heart rhythm monitoring that records the electrical activity of your heart continuously over a full day. You may also hear it referred to as a Holter monitor test, a portable ECG monitor, or ambulatory ECG monitoring. The terminology varies, but the purpose is the same. We are looking to see what your heart is doing during real life.
When we perform a standard ECG in clinic, it gives us a snapshot of that exact moment. It is an excellent test, but it only shows us what is happening while you are lying on the couch in front of us. If your symptoms come and go, that single reading may miss the problem entirely.
A 24 hour heart monitor captures everything. It records your heart while you are working, walking, sleeping, exercising, relaxing or feeling stressed. If your symptoms are less frequent, we can extend the monitoring period to three, five or even seven days.
It gives us context. And in cardiology, context matters.
When Would I Recommend a Holter Monitor?
Most commonly, I arrange a Holter monitor test for people experiencing palpitations. That sensation where your heart feels as though it is thumping, fluttering, skipping beats or racing out of nowhere.
Many people assume palpitations are simply anxiety or stress. Sometimes they are. But sometimes they are caused by an arrhythmia, which is an abnormal heart rhythm that needs proper assessment.
Continuous ECG monitoring allows us to match your symptoms with what your heart was actually doing at that precise moment. That can be incredibly reassuring when everything is normal, and incredibly important if it is not.
It is also one of the best ways of detecting atrial fibrillation. Atrial fibrillation, often called AF, is an irregular heart rhythm that can come and go. It does not always cause dramatic symptoms, but it does increase your risk of stroke. Identifying AF early allows us to reduce that risk significantly.
We also use ambulatory ECG monitoring for people who have experienced dizziness, lightheadedness or blackouts. If you have ever fainted or felt close to it, we want to know exactly what your heart was doing at the time. Guesswork is not good enough.
What Actually Happens During the Test?
The process is straightforward and far less dramatic than people imagine.
We attach a small portable ECG monitor to your chest using adhesive electrodes. They sit flat against the skin and connect to a compact recording device that you carry with you. If you have a particularly hairy chest, we may shave a small area so the electrodes stick properly, but that is the only preparation required.
The device is lightweight and discreet. It is splash proof, so you can wash carefully, but you cannot immerse it in water. Otherwise, you simply go about your normal day.
Once the recording period is complete, we download the data. Cardiac physiologists review every heartbeat in detail. After that, we sit down together and discuss your results properly, looking at what was found and whether any further treatment or investigation is needed.
Why This Matters
Heart rhythm disturbances are not always obvious. Some people live with intermittent arrhythmias for years without realising. Others experience symptoms but dismiss them repeatedly.
The first serious sign can sometimes be something we would much rather have prevented.
If your heart is repeatedly racing, skipping or fluttering, it deserves attention. Not panic. Not alarm. Just proper assessment.
You would not ignore unusual noises from your car engine. Your heart is far more important.
A Small Valentine’s Reminder
Valentine’s Day celebrates love. But the most important long term relationship you have is with your own health.
If you have been searching online for terms like 24 hour ECG, Holter monitor, heart rhythm monitoring, ECG for palpitations or detecting atrial fibrillation, that is usually your intuition nudging you.
Listening to your heart is not sentimental. It is sensible.
If you would like to discuss whether a 24 hour ECG is appropriate for you, book an appointment with me, Dr Iain MacGarrow.
Your heart deserves more than just one day of attention each year.
Dr Iain MacGarrow

