It means the 24-72 hour continuous monitoring of the heart functions by ECG device during the patient’s everyday activities. The device is small and light so it can be worn in a pouch around the neck or on a belt while the connecting ECG electrodes are stuck to the chest.
During the course of the observation, you should not avoid exhausting activities as it is important to record all types of events that are part of your daily routine (walking, having a rest, doing sports, climbing stairs, etc.).
The Holter examination provides useful data on unsystematic arrhythmias that do not occur on a daily basis, thus cannot be diagnosed by ordinary ECG tests or deformities that do not cause any symptoms (arrhythmias, early signs of coronary artery disease).
The recorded data is evaluated by computer.