– Extended Cardiac Monitoring
Our most thorough ambulatory cardiac recording — two full weeks of continuous heart rhythm data for the most elusive symptoms.
Monitoring Duration
14 Days
Before Device Fitting
Shower First
Results
7–10 Days
– What is a 14 Day Holter Monitor?
The 14-day Holter monitor is our most comprehensive ambulatory ECG service, providing 336 continuous hours of heart rhythm data. It is the gold-standard investigation for patients whose symptoms are infrequent — occurring only once or twice per fortnight — and who have not had their symptoms captured by a shorter monitoring period.
The device is fitted at our clinic and electrode pads are replaced at the one-week mark. You wear the monitor throughout your normal daily life, maintaining a simple symptom diary to log any episodes of palpitations, dizziness, breathlessness or chest discomfort, along with the time they occur.
The extended duration of the recording also makes this monitor the preferred tool for comprehensive atrial fibrillation screening, where brief or asymptomatic episodes of AF may otherwise be completely missed.
Your GP, specialist, or our team may recommend a standard ECG for any of the following reasons.
Your Appointment
A 14-day monitor is recommended when symptoms occur very infrequently — perhaps once or twice a fortnight — making a 7-day recording statistically insufficient to capture an event. It is also the preferred duration for comprehensive atrial fibrillation screening, where guidelines recommend extended monitoring to maximise detection of paroxysmal AF.
The consultant cardiologist's report will detail the predominant rhythm throughout the recording, maximum, minimum and average heart rates, the frequency and nature of any ectopic beats, evidence of any paroxysmal arrhythmias (including AF), and critically — whether any rhythm abnormalities directly correlated with the symptoms you recorded in your diary.
Yes — with your consent, the written report is sent directly to your GP or referring consultant. If an urgent finding is identified, our clinical team will contact your GP promptly. You also receive a copy of the full report for your own records.
45 South Street,
Dorking,
Surrey,
RH4 2JX