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Holter Monitor

A Holter Monitor (also called an ambulatory device) is a portable device for continuously monitoring various electrical activity of the central nervous system for at least 24 hours. The most common use is for monitoring the heart or ECG, but can also be used for monitoring EEG. Its extended recording period is sometimes useful for observing occasional cardiac arrhythmias or epileptic events (EEG) that would be difficult to identify in a shorter period of time. For patients having more transient symptoms, a cardiac event monitor which can be worn for a month or more can be used.