Ambulatory electrocardiography (AECG) is used to detect, characterise and document cardiac arrhythmias in clinical practice. As some arrhythmias are infrequent or may occur only during certain activities (eg, sleep or exercise), it is usual to record the electrical activity of the heart over a period of time, usually 24 hours.
This is a companion discussion topic for the original article at https://patient.info/doctor/cardiovascular-disease/ambulatory-ecg-monitoring-and-related-investigations