Holter Monitoring

Named for its inventor, Norman J. (Jeff) Holter, MD, who originally researched and developed this procedure in the 1940s, a Holter monitor provides an extended (usually 24 to 48 hours) electrocardiogram (ECG or EKG) of your heart’s electrical activity, including rhythm and rate. It is a simple, painless test that can be beneficial if symptoms are intermittent or if your physician suspects an arrhythmia and is unable to capture it using a standard ECG test. Holter monitoring is also useful in showing a change in rhythm over time while you go about daily activities.