Implantable cardiac defibrillator: A device that is put within the body and is designed to recognize certain types of abnormal heart rhythms (arrhythmias) and correct them.
Defibrillators continuously monitor the heart rhythm in order to detect overly rapid arrhythmias such as
These ventricular arrhythmias impair the pumping efficiency of the heart and greatly raise the risks of fainting (syncope) and sudden cardiac arrest. They tend to develop in people with coronary artery disease or heart muscle diseases (cardiomyopathies). They are life- threatening.
A defibrillator can be implanted within the body by far less invasive techniques than in the past because the devices, aside from being more technologically advanced, are smaller. (An implantable defibrillator is about the size of a minicassette).
The defibrillator corrects the heart rhythm by delivering precisely calibrated and timed electrical shocks, when needed, to restore a normal heartbeat.
What are implantable cardiac defibrillators (ICDs)? How does a normal heart function? How do abnormal heart rhythms decrease blood delivery by the heart?
Implantable Cardiac Defibrillator Tutorial: The 15 most common questions answered about ICD's.
The Heart Rhythm Disorders section contains information acquired and inherited rhythm disorders such as atrial fibrillation, sudden cardiac arrest and Long QT Syndrome.
The implantable cardioverter-defibrillator (ICD) has revolutionized the treatment of patients at risk for sudden cardiac death due to ventricular ...
An ICD uses electrical pulses or shocks to help control life-threatening, irregular heartbeats, especially those that could cause sudden cardiac arrest.