Pacemakers Defibrillators
Pacemaker Defibrillators
Pacemakers and Implantable Cardioverter Defibrillators (ICDs) are advanced cardiac devices used to treat serious heart rhythm disorders (arrhythmias). These devices help regulate abnormal heartbeats and reduce the risk of life-threatening cardiac events.
Understanding Arrhythmias
An arrhythmia is a disorder of the heart’s rate or rhythm. This means the heart may:
Beat too fast
Beat too slow
Beat in an irregular pattern
Most arrhythmias occur due to problems within the heart’s electrical system. When arrhythmias are significant or dangerous, treatment with an implanted device such as a pacemaker or ICD may be recommended.
Pacemakers
A pacemaker helps control abnormal heart rhythms by sending small electrical impulses to the heart to maintain a normal rate and rhythm. Pacemakers can:
Speed up a slow heart rhythm
Help control fast heart rhythms
Coordinate the timing between the heart’s chambers
Implantable Cardioverter Defibrillators (ICDs)
An ICD continuously monitors heart rhythms. If it detects a dangerous or life-threatening rhythm, it delivers an electrical shock to restore a normal heartbeat. This process is called defibrillation.
ICDs are especially effective in preventing sudden cardiac arrest (SCA). Many modern ICDs:
Function as both a pacemaker and a defibrillator
Record abnormal heart rhythms for later review
Help physicians plan future treatments more accurately
The Implantation Procedure & Recovery
Implantation of a pacemaker or ICD is a minor surgical procedure
Devices are typically placed in the chest or abdomen
Most patients stay in the hospital for 1–2 days for monitoring
Normal daily activities can usually be resumed within a few days