Pacemaker | American Heart Association
https://www.heart.org/en/health-topics/arrhythmia/prevention--treatment-of-arrhythmia/pacemaker
WEBNov 18, 2022 · 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 sensors (electrodes). Some newer pacemakers are wireless. It produces electrical impulses to help control abnormal heartbeats.
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