Definitions for "Catheter Ablation"
A procedure in which a catheter (a soft, thin, flexible tube with an electrode at the end) is inserted through a vein or artery in the groin or neck and moved into the heart. Through the electrode, RF, laser, Cryo (freezing) or ultrasound energy is applied to eliminate or physically destroy specific heart tissue.
catheter ablation, also known as radiofrequency (RF) ablation: a two-step procedure used to treat rhythm problems in the top or bottom parts of the heart. First, the area in the heart that causes the abnormal heart rhythm is located with the aid of a catheter. Next, the tissue in this area is "burned," thus interrupting the pathway that conducts the impulses that cause the abnormal rhythm.
In this procedure, one or more flexible, thin tubes (catheters) are guided via x-ray into the blood vessels and directed to the heart muscle. A burst of radiofrequency (or other) energy destroys very small areas of tissue that give rise to abnormal electrical signals.