A pacemaker is a battery-powered device that sends electrical signals to your heart to help it beat at a proper rate or “pace”. The pacemaker goes under your skin, beneath your collarbone and is connected to your heart by one or more wires (leads). It is used to treat bradycardia and atrial fibrillation associated with bradycardia. Bradycardia is an arrhythmia that is caused when electrical signals are not produced at a fast enough pace by the SA node (the heart’s natural pacemaker) or these signals do not reach the ventricle. It causes an abnormally slow heartbeat. The pacemaker delivers regulated electric signals to the heart muscle to restore a normal heartbeat rate.
©2013 Medmovie.com. All rights reserved. Medmovie.com creates and licenses medical illustrations and animations for educational use. Our goal is to increase your understanding of medical terminology and help communication between patients, caregiver and healthcare professionals. The content in the Media Library is for your information and education purposes only. The Media Library is not a substitute for professional medical advice, diagnosis or treatment for specific medical conditions.