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Heart Rhythm Monitoring

Many indications of heart trouble only occur during activities outside the doctor's office. Ambulatory electrocardiography, or heart rhythm monitoring, enables us to evaluate your heart's electrical impulses throughout your daily activities such as exercise, eating, emotional stress and sleep.

A portable Holter or event monitor can allow your doctor to review a larger sample of recorded heartbeats and identify abnormalities that only occur once in a while. With this information, your doctor can:

  • Determine if an arrhythmia is a sign of heart disease by considering the type of pattern it produces, how often it occurs, how long it lasts, and whether you experience symptoms at the same time.
  • Detect poor blood flow to your heart muscle (ischemia), which may be a sign of coronary artery disease (CAD).
  • Monitor the effectiveness of treatment for irregular heart rhythms.

Your doctor will provide you with specific preparation information prior to your test. If you have any questions, please call 970.221.1000.

Holter Monitoring

This is a lightweight recording device that is worn on a strap at your waist or over your shoulder. Two electrodes taped to your chest detect the electrical signals from your heart and transmit them to the recorder through small wires. The device is worn continuously for 24 hours.

While wearing the Holter monitor, you will be asked to keep a journal, noting times of all activities and symptoms. Use the monitor's clock display when you write down the exact times of activity (such as walking up stairs or gardening) or symptoms (such as dizziness or nausea). The success of the Holter test depends on how carefully you record the times of your activities and symptoms.

King of Hearts Monitor

A King of Hearts monitor is a recording device about the size of a deck of cards. Wires lead from the recorder to two electrodes, which are taped to your chest. The monitor has a button on it that you must press as soon as you experience a symptom. When the button is pressed, your EKG is recorded inside the device. Following the symptom, or heart event, you will transmit the information by telephone to the EKG monitoring staff. You may be asked to keep the King of Hearts monitor for up to 30 days in order to obtain enough information to make a diagnosis.


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