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Overview - Pacemaker implantation
If you need to have a pacemaker fitted, a small electrical device called a pacemaker will be surgically implanted in your chest.
The pacemaker sends electrical pulses to your heart to keep it beating regularly and not too slowly.
Having a pacemaker can significantly improve your quality of life if you have problems with a slow heart rate.
The device can be lifesaving for some people.
In the UK, pacemaker implantation is one of the most common types of heart surgery carried out, with many thousands of pacemakers fitted each year.
How a pacemaker works
A pacemaker is a small device about the size of a matchbox or smaller that weighs 20 to 50g.
It consists of a pulse generator, which has a battery and a tiny computer circuit, and 1 or more wires known as pacing leads, which attach to your heart.
The pulse generator emits electrical impulses through the wires to your heart.
The rate at which the electrical impulses are sent out is called the pacing rate.
Almost all modern pacemakers work on demand. This means they can be progr
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