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.
Most patients with a pacemaker can live a normal, active life. Patients do need to take some precautions such as carrying their medical ID card, which contains information about their device, and telling all of their heath care providers that they have a pacemaker.
A pacemaker is a small device that helps the heart beat normally. See how it’s put in the chest, and how it uses electrical signals to keep the heart on track.