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Dictionary of Cancer Terms

View in Spanish: Cardioversor-desfibrilador implantable

Implantable cardioverter-defibrillator (im-PLAN-tuh-bul KAR-dee-oh-VER-ter-dee-FIH-brih-LAY-ter)
A small device used to correct a heartbeat that is abnormal (too fast, too slow, or irregular). The device is placed by surgery in the chest or abdomen. Wires are passed through a vein to connect the device to the heart. When it detects abnormal heartbeats, it sends an electrical shock to the heart to restore the heartbeat to normal. Also called ICD.

Source: National Cancer Institute Dictionary of Cancer Terms, available at www.cancer.gov/dictionary.