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  1. Pacemaker - Mayo Clinic

    Jun 4, 2025 · A pacemaker is a device used to control an irregular heart rhythm. A pacemaker has flexible wires called leads. The wires are placed in one or more chambers of the heart. …

  2. Pacemaker - American Heart Association

    Oct 29, 2024 · A pacemaker is a small, battery-operated device that helps the heart beat in a regular rhythm. Traditional pacemakers have three parts: a generator, wires (leads) and …

  3. Pacemaker Guide: Implantation, Surgery, and Living With It

    Sep 23, 2024 · A pacemaker is a small device that helps regulate heart rate and rhythm by sending electrical impulses to the heart muscle. Learn how it works.

  4. Pacemaker - Wikipedia

    A pacemaker, also known as an artificial cardiac pacemaker, is an implanted medical device that generates electrical pulses delivered by electrodes to one or more of the chambers of the heart.

  5. Pacemaker (for the Heart): Surgery, Types & What It Is

    Feb 28, 2022 · A pacemaker is a device implanted in your body to deliver electrical pulses to your heart. They can improve quality of life and prevent life-threatening problems.

  6. How Does a Pacemaker Work? - Verywell Health

    Oct 16, 2025 · Learn what pacemakers are and how they work, as well as the signs that your pacemaker needs to be replaced.

  7. Pacemaker: Types, Procedure, Precautions, and More - Healthline

    Nov 25, 2021 · What is a pacemaker? A pacemaker is an electric medical device that’s generally about the size of a matchbox. A surgeon implants it under your skin to help manage irregular …

  8. Pacemaker Insertion - Johns Hopkins Medicine

    What is a pacemaker? A pacemaker is composed of three parts: a pulse generator, one or more leads, and an electrode on each lead. A pacemaker signals the heart to beat when the …

  9. Pacemakers: Surgery, Types and How They Work for Heart Health

    Jul 9, 2025 · Read on to learn more about pacemaker surgery, types of pacemakers and how a pacemaker can improve your heart health.

  10. What Is a Pacemaker? 5 Things to Know About the Device - AARP

    May 21, 2024 · The pacemaker monitors the heart’s rhythm and if it detects certain abnormalities, it will generate an electric impulse so the heart can beat with a normal rhythm. For many …