Health and Medicine

Surgery and Other Treatments

How does a cardiac pacemaker differ from an implantable defibrillator?

Both pacemakers and implantable defibrillators are used to treat arrhythmias in the heart rate. A pacemaker monitors the electrical impulses in the heart and delivers electrical pulses as necessary to make the heart beat in a more normal rhythm. An implantable cardioverter defibrillator monitors heart rhythms. When it senses irregular rhythms, it delivers shocks so the heart beats in a regular rhythm.


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