MedlinePlus Medical Encyclopedia: Holter heart monitor

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Holter heart monitor

During a heart Holter monitor study, the patient wears a monitor that records electrical activity of their heart (similarly to the recording of an electrocardiogram). This usually occurs for 24 hours, while at the same time the patient also records a diary of their activity. Health care providers then analyze the recording, tabulate a report of the heart’s activity, and correlate irregular heart activity with the entries of the patient’s diary.

Update Date: 7/13/2006

Updated by: A.D.A.M. Medical Illustration Team

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