To correct abnormal heart rhythms (arrhythmias) and help your heart beat more efficiently, your doctor may recommend a device implant. The most common device implants are pacemakers and implantable cardioverter defibrillators (ICDs). These devices are usually implanted in the cath lab but may also be implanted during surgery.
Pacemakers: Pacemakers are usually used to correct heart rhythms that are too slow or are out of synch. A pacemaker typically has two parts: a pulse generator, and one or more leads. The pulse generator includes a battery and circuits that create electrical pulses. The leads are wires that send the electrical pulses to your heart.
Implantable Cardioverter Defibrillators (ICDs): ICDs are used to prevent or treat fast or chaotic arrhythmias called ventricular tachycardia (v-tach) or ventricular fibrillation (v-fib). Here's how they work:
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