What is a pacemaker, and how does it work?
A pacemaker is a surgically implanted device that helps to regulate your heartbeat. Pacemakers use batteries to produce electrical impulses that make the heart pump. The impulses flow through tiny wires (called leads) that are attached to the heart. The impulses are timed to flow at regular intervals. Most pacemakers work only when they are needed. These are called demand pacemakers. They have a sensing device that either shuts off the pacemaker if the heartbeat is above a certain rate or turns the pacemaker on when the heart is beating too slowly. Pacemaker batteries can last up to five years or longer. Pacemakers and batteries can be replaced during a minor surgical procedure.
A pacemaker is a small device that sends electrical impulses to the heart muscle to maintain a healthy heart rate and rhythm. This device sets the pace for the heart, and helps to regulate arrhythmia, which is the term used to describe an irregular heartbeat. Arrhythmia sometimes results from heart disease, although there are other causes as well. A pacemaker is used when the heart’s natural pacemaker is not working properly or the heart’s own electrical pathway is blocked. During a simple operation, this electrical device is placed under the skin. A lead extends from the device to the right side of the heart, where it is permanently anchored.
Related Questions
- Is the individual's pacemaker rated to perform at depths (i.e., pressures) compatible with recreational diving, including an added margin of safety?
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