The body generates electrical impulses that cause the heart to beat. In some people, those electrical impulses don't happen in a normal pattern, which can cause the heart to beat too slowly, too fast or irregularly. A very slow heartbeat can lead to fatigue, lightheadedness, dizziness and fainting. In patients who are at risk for a very slow heart rate, doctors often recommend a pacemaker.
The procedure for implanting a pacemaker is often routine and relatively easy for the patient. The health care team will tell the patient how to prepare for surgery and what to expect during the procedure.
