A service of the U.S. National Library of Medicine
National Institutes of HealthAn arrhythmia is any disorder of your heart rate or rhythm. It means that your heart beats too quickly, too slowly, or with an irregular pattern. Most arrhythmias result from problems in the electrical system of the heart. If your arrhythmia is serious, you may need a cardiac pacemaker or an implantable cardioverter defibrillator (ICD). They are devices that are implanted in your chest or abdomen.
A pacemaker helps control abnormal heart rhythms. It uses electrical pulses to prompt the heart to beat at a normal rate. It can speed up a slow heart rhythm, control a fast heart rhythm, and coordinate the chambers of the heart.
An ICD monitors heart rhythms. If it senses dangerous rhythms, it delivers shocks. This treatment is called defibrillation. An ICD can help control life-threatening arrhythmias, especially those that can cause sudden cardiac arrest (SCA). Most new ICDs can act as both a pacemaker and a defibrillator. Many ICDs also record the heart's electrical patterns when there is an abnormal heartbeat. This can help the doctor plan future treatment.
Getting a pacemaker or ICD requires minor surgery. You usually need to stay in the hospital for a day or two, so your doctor can make sure that the device is working well. You will probably be back to your normal activities within a few days.
MEDICAL ENCYCLOPEDIA
National Institutes of Health
- The primary NIH organization for research on Pacemakers and Implantable Defibrillators is theNational Heart, Lung, and Blood Institute
Languages
08/06/2014 07:38 AM EDT
Source: National Heart, Lung, and Blood Institute
Related MedlinePlus Page: Pacemakers and Implantable Defibrillators
Related MedlinePlus Page: Pacemakers and Implantable Defibrillators
08/06/2014 07:38 AM EDT
Source: National Heart, Lung, and Blood Institute
Related MedlinePlus Page: Pacemakers and Implantable Defibrillators
Related MedlinePlus Page: Pacemakers and Implantable Defibrillators
08/06/2014 07:38 AM EDT
Source: National Heart, Lung, and Blood Institute
Related MedlinePlus Page: Pacemakers and Implantable Defibrillators
Related MedlinePlus Page: Pacemakers and Implantable Defibrillators
08/06/2014 07:38 AM EDT
Source: National Heart, Lung, and Blood Institute
Related MedlinePlus Page: Pacemakers and Implantable Defibrillators
Related MedlinePlus Page: Pacemakers and Implantable Defibrillators
08/06/2014 07:38 AM EDT
Source: National Heart, Lung, and Blood Institute
Related MedlinePlus Page: Pacemakers and Implantable Defibrillators
Related MedlinePlus Page: Pacemakers and Implantable Defibrillators
08/06/2014 07:38 AM EDT
Source: National Heart, Lung, and Blood Institute
Related MedlinePlus Page: Pacemakers and Implantable Defibrillators
Related MedlinePlus Page: Pacemakers and Implantable Defibrillators
08/06/2014 07:38 AM EDT
Source: National Heart, Lung, and Blood Institute
Related MedlinePlus Page: Pacemakers and Implantable Defibrillators
Related MedlinePlus Page: Pacemakers and Implantable Defibrillators
08/06/2014 07:38 AM EDT
Source: National Heart, Lung, and Blood Institute
Related MedlinePlus Page: Pacemakers and Implantable Defibrillators
Related MedlinePlus Page: Pacemakers and Implantable Defibrillators
Start Here
- Implantable Cardioverter Defibrillator
- Pacemaker
- Implantable Cardioverter Defibrillator
Overviews
- Cardioverter-Defibrillator: A Treatment for Arrhythmia(American Academy of Family Physicians)
- Also available in Spanish
- Devices for Arrhythmia(American Heart Association)
How Does a Pacemaker Work?
Latest News
- Pacemakers Common for Those with Dementia and Irregular Heartbeats(07/28/2014, HealthDay)
- Scientists Use Gene Therapy to Create 'Biological Pacemaker' in Pig Hearts(07/16/2014, HealthDay)
- Heart Monitoring May Prevent Some Strokes, Study Suggests(06/25/2014, HealthDay)
- More News on Pacemakers and Implantable Defibrillators
Coping
- Coping With My Partner's ICD and Cardiac Disease(American Heart Association)
Specific Conditions
- Cardiac Resynchronization Therapy(American Heart Association)
- Implantable Cardioverter Defibrillator(Heart Rhythm Society)
- Pacemakers (Beyond the Basics)(UpToDate)
- Subcutaneous Implantable Cardioverter-Defibrillator(American Heart Association)
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Related Issues
- Coping with Trauma and Stressful Events As a Patient with an Implantable Cardioverter-Defibrillator(American Heart Association)
- Devices That May Interfere with Pacemakers(American Heart Association)
- How to Respond to an Implantable Cardioverter-Defibrillator Recall(American Heart Association)
- Pacemaker and Defibrillator Lead Extraction(American Heart Association)
- Questions to Ask Your Doctor--Implantable Cardioverter Defibrillator (ICD)(American Heart Association)
- Sexual Health for Patients with an Implantable Cardioverter Defibrillator(American Heart Association)
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Tutorials
- Pacemakers(Patient Education Institute)
- Also available in Spanish
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Videos
- Automatic Implantable Cardiac Defibrillator(OR-Live) - Halifax Health Medical Center, Daytona Beach, FL, 2/19/2009
- CRT-D Pulse Generator Replacement / Capsulectomy(OR-Live) - Providence Saint Joseph Medical Center, Burbank, CA, 10/30/13
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Clinical Trials
- ClinicalTrials.gov: Defibrillators, Implantable
- ClinicalTrials.gov: Pacemaker, Artificial
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- ClinicalTrials.gov: Defibrillators, Implantable
Research
- Elderly Benefit from Using Implantable Defibrillators(American Heart Association)
- Many People with Implantable Defibrillators Can Participate in Vigorous Sports(American Heart Association)
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Journal Articles
References and abstracts from MEDLINE/PubMed (National Library of Medicine)- Article: Management of anticoagulation around pacemaker and defibrillator surgery.
- Article: Health tips. Precautions with pacemakers.
- Article: Implanted pacemakers. Ticking away at progress.
- Pacemakers and Implantable Defibrillators -- see more articles
- Implantable defibrillators -- see more articles
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Directories
- Find a Heart Rhythm Specialist(Heart Rhythm Society)
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Organizations
Children
- My Child Needs or Has an Implantable Cardioverter-Defibrillator: What Should I Do?(American Heart Association)
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Patient Handouts
- Heart failure - surgeries and devices
- Also available in Spanish
- Heart pacemaker
- Also available in Spanish
- Heart pacemaker - discharge
- Also available in Spanish
- Implantable cardioverter defibrillator - discharge
- Also available in Spanish
- Implantable cardioverter-defibrillator
- Also available in Spanish
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