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Oxford University Hospitals NHS Foundation Trust
Cardiothoracic Services

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Ambulatory Monitoring

We offer a range of ambulatory monitoring options for patients.

24/48 hour monitoring

A rectangular device with display and four wires attached

We will lend you a monitor (pictured) to take home and wear for either 24 or 48 hours, depending on the requirements from your consultant or doctor.

Please wear the monitor for the required time, including overnight, and ensure it is kept dry; please do not have a bath or shower until the monitor is removed.

We will give you a diary sheet on which to make notes about any abnormal feelings you may have whilst wearing the monitor (e.g. shortness of breath, palpitations) and to record your mealtimes and sleeping times.

Five-day monitoring

A rectangular device with display and three wires attached

We will lend you a monitor (pictured) to take home and wear for five days; we will give you extra electrodes so you can have a bath or shower during that time.

The monitor is continually saving your heart rate and rhythm; if you have any unusual feelings please press the middle button to let us know.

Ten-day monitoring (CardioMemos)

A rectangular device with display and two wires attached

We will lend you a monitor (pictured) to take home and wear for ten days; we will give you extra electrodes so you can have a bath or shower during that time.

Unlike our other monitors, this monitor does not automatically save and record your symptoms. When you feel a symptom, press the green button once. You’ll hear three beeps. Try and be as relaxed as you can, the monitor is recording the minute prior to you pressing the button, and the minute after. Once complete, you’ll hear another bleep. Please make a note of the date/time, symptom and activity on your diary sheet.

Ambulatory monitoring FAQ

When do I have to return the monitor?

The technician fitting your monitor will tell you when to return it. It is important to return the monitor on the agreed date to ensure your consultant receives your results quickly.

The monitors are needed for other patients; if you don't return your monitor at the agreed time, another patient may have their appointment cancelled.

I'm having a monitor fitted and it needs to be returned over the weekend; what do I do?

If your monitor is due to be returned over the weekend, or over a Bank Holiday, please ensure the monitor is packaged and returned to Main Reception, Level 2 at the John Radcliffe Hospital. This desk is usually manned 24/7 and someone should be there to take it from you. For patients at the Horton General Hospital, you will be able to return your monitor to the department on the next working day after the weekend/bank holiday, or as discussed with the technician at the time of your appointment.

How do I wear the monitor in bed?

Most patients find it comfortable to put the monitor in a pocket of a night gown or pyjamas, but everybody is different. You could try resting the monitor at the side of the bed or behind your pillow; please do what is comfortable for you.

When do I get my results?

Once analysed, we send your results back to your referring consultant or physician, which takes around a couple of weeks. They will then contact you with your results.

Please do not contact our department for results; we cannot give these out, either over the telephone or in person.

How can I provide feedback?

We will give you a feedback form during your appointment, but if you would like to givel feedback in person please do speak to a member of our team.