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Pacemaker

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Pacemaker

A pacemaker is a small, battery-powered device that sends out small electrical impulses to make the heart muscle contract. Pacemakers help your heart beat in a regular rhythm and at a normal speed. They are inserted to treat a heart rate that is too slow, too fast, or irregular.

The pacemaker itself consists of a pulse generator and battery that create the electrical impulses. Most pacemakers have wires (leads) that transmit electricity to the heart.

Pacemakers are typically placed under the skin of the chest. Some pacemakers are placed inside the heart and do not have wires.

Temporary pacemakers are used only while a person is in the hospital. A temporary pacemaker is not surgically inserted but is worn outside the body.

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This information does not replace the advice of a doctor. Healthwise, Incorporated, disclaims any warranty or liability for your use of this information. Your use of this information means that you agree to the Terms of Use. Learn how we develop our content.