Ambulatory electrocardiography (ECG) is carried out using a wearable device called a Holter monitor that records the electrical activity of the heart using a number of electrodes attached to the chest. The device is usually worn for 24 hours and detects intermittent arrhythmias (abnormal heart rates and rhythms). An event monitor is a similar device that can be worn for longer periods but records only when it is activated by the user.
From the 2010 revision of the Complete Home Medical Guide © Dorling Kindersley Limited.
The subjects, conditions and treatments covered in this encyclopaedia are for information only and may not be covered by your insurance product should you make a claim.