Pacemakers
Pacemaker and defibrillator implant procedure
Living with your pacemaker
We all have pacemakers in our bodies. For most of us, it’s the all-natural version. When the heart beats in order to pump blood through the body, it is able to do so because special cells in your heart produce electrical impulses. Those impulses are the result of the work of the heart’s natural pacemaker, which is called the sinus node.
As long as the electrical impulses flow down the heart’s walls at regular intervals, your heart pumps at a rhythmic pace. Sometimes, though, something happens to interfere with the electrical impulses of your heart’s natural pacemaker. When this happens, the natural pacemaker can’t do its job as well as it needs to. In those instances, a pacemaker device may need to be implanted into a patient’s chest. Here are two types of pacemakers:
Demand pacemaker
A demand pacemaker is equipped with a special circuit that senses your heart’s own electrical activity. When the heart is beating normally on its own, the pacemaker does nothing. But it jumps into action when the heart’s beats are irregular and returns your heartbeat to normal. The kind of pacemaker you have depends on the kind of heart problem you have. Demand pacemakers are commonly used.
Fixed-rate pacemaker
Unlike a demand pacemaker, a fixed-rate device is always on. To keep your heartbeat regular, the pacemaker produces constant electrical impulses at a rate preset by your doctor.