Holter Monitoring

What is a 24 hour Holter monitor?

A Holter monitor is a machine that continuously records the heart's rhythms. The monitor is worn for 24 hours during normal activity.

How does a Holter monitor work?

Electrodes are placed on the chest. The electrodes are attached by wires to a small recording monitor, which is carried in a pouch and worn around your neck or waist.
The Holter Monitor will record your heart's electrical activity. It is important that you keep a record of any activities performed while wearing the monitor and if you feel any symptom, so that they may be compared to the Holter monitor findings.
After 24 hours, you should return the Holter monitor so the doctor can download the data to the computer and analyze it for any abnormal heart rhythms.

Why is this test performed?

Holter monitoring is used to determine how the heart functions during normal activity. Your doctor may want you to wear a Holter monitor if you have experienced symptoms in order to help diagnose any of the following:
-Atrial fibrillation or flutter
-Multifocal atrial tachycardia
-Paroxysmal supraventricula tachycardia
-Reasons for fainting
-Slow heart rate (bradycardia)
-Ventricular tachycardia

How do I prepare for this test?

There is no preparation for a Holter monitor. Inform your doctor if you are allergic to any tape or other adhesives. You will not be able to shower while wearing the Holter monitor.

What are the risks associated with using a Holter monitor?

There are no risks associated with wearing a Holter monitor.