Holter Monitor/Event Monitor
An event monitor is a portable device used to record your heart’s electrical activity when you have symptoms. It records the same information as an electrocardiogram (EKG), but for longer durations of time. Most of these devices can transmit the recorded information directly to your healthcare provider. Holter monitors record continuously, usually for about 24 to 48 hours. Event monitors are typically worn for 1-2 weeks but can be worn up to 1 month. It records when you activate it by documenting a symptom but can also automatically record an abnormal heart rhythm that is detected. These monitors can be very useful in diagnosing arrhythmias that are intermittent.