Holter monitor

A Holter monitor is a machine that continuously records the heart's rhythms. The monitor is usually worn for 24 - 48 hours during normal activity. A Holter monitor is like a ECG/EKG (electrocardiogram that records the electrical activity of the heart).

Electrodes (small conducting patches) are stuck onto the patient's chest and attached to a small recording monitor. The patient carries the Holter monitor in a pocket or small pouch worn around the neck or waist. The monitor is battery operated.

While wearing the monitor, it records the heart's electrical activity. The patient keeps a written diary of what activities are done while wearing the monitor. After 24 - 48 hours, the monitor is returned to the doctor's office. The doctor will look at the records and see if there have been any irregular heart rhythms.

More information about the Holter monitor and ECG.