WHAT IS A PACEMAKER?
A pacemaker is an implantable, battery-powered microcomputer that sends electrical pulses to your heart whenever it detects a slow heartbeat or no heartbeat at all. When it senses an arrhythmia or lack of a heartbeat, it then sends electrical impulses to the heart to restore or establish a normal rhythm. A pacemaker also stores important information that your doctor can use to program your pacemaker so you can receive the best possible therapy.
Newer pacemakers also treat heart failure by resynchronizing electrical impulses in the heart’s four chambers, improving the heart’s ability to pump blood to the body effectively and efficiently.