A Holter monitor is a portable EKG that monitors the electrical activity of a freely moving person’s heart, generally for one 24 hour day. It is a painless test; electrodes from the monitor are placed on the chest. Once the monitor is in place, you can go home and perform all of your normal activities (except showering). You will be asked to keep a diary of your activities and any symptoms you experience and when they occur. The wearing of the Heart Monitor will give Dr. Bensimon a more in depth view of the way a patient’s heart performs during a normal day and gives a better perspective into what goes on while the patient is active and at rest.