a pacemaker is a device that sends small electrical impulses to the heart muscle to maintain a suitable heart rate. pacemakers primarily prevent the heart from beating too slowly. the pacemaker has a pulse generator (which houses the battery and a tiny computer) and leads (wires) that send impulses from the pulse generator to the heart muscle. newer pacemakers have many sophisticated features that are designed to help manage arrhythmias and optimize heart rate-related function as much as possible.
what is a pacemaker?