An Implantable Cardioverter Defibrillator or ICD is used to treat a dangerously fast heart beat. It is small enough to fit into the palm of your hand and weighs 69-85 grams. The ICD monitors your heart for very fast and potentially dangerous rhythm disorders. The device is surgically placed or implanted just under the skin in the chest area. The ICD is attached to one or two thin coded wires called leads, which are placed in or on the heart muscle. When an abnormal heart rhythm occurs, the ICD sends a shock to the heart muscle to defibrillate or stop the cycle of rapid twitching. Interrupting the pattern of the rhythm disorder allows the heart to resume its normal rhythm.
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