Holter Monitoring
A Holter monitor is a compact wearable that tracks heart rhythm, similar to an ECG. While a standard ECG only records seconds of data, a Holter Monitor captures extended periods, aiding arrhythmia diagnosis. Doctors may prescribe it for 1 to 14 days, gathering all heartbeats data. A symptom diary helps correlate with monitor readings.
A Holter monitor is a portable device that continuously records the electrical activity of your heart over a period of time (typically 24 to 72 hours, and in some cases up to 7 or 14 days) while you go about your normal daily activities.
Why it’s used: It helps detect episodic or intermittent heart rhythm disturbances (palpitations, dizziness, skipped beats) that may not show up during a brief in-clinic ECG.
How long it takes: After setup at the clinic, you will wear the monitor for the prescribed period (e.g., 24–72 h, or up to 14 days) before returning it. The setup appointment usually takes about 10–15 minutes.
How to prepare:
- Shower or bathe before your appointment, as the monitors must remain dry.
- Do not apply lotions, oils or powders to your chest prior to home wear, as this may interfere with electrode adhesion
- Wear loose clothing with easy chest access for wires.
- Bring a list of all your medications.
- Continue your usual activity unless your doctor has given alternative instructions.
What to expect: The technologist will apply 2-3 electrodes to your chest, connect the monitor, and show you how to keep a symptom diary (recording time, activity, and any sensations like palpitations or dizziness). You will go home wearing the device, sleep with it on, and return it on the scheduled date.
Results & follow-up: The recorded data is analysed, correlated with your symptom diary, and results are sent to your doctor for review.