A procedure to eliminate an abnormal rapid heart rhythm. These rapid heart rhythms can include SVT’s or VT’s depending on where they arise in the heart. They are often caused by an abnormal “electrical circuit” in the heart that arises from a scar or extra electrical fibers. Using catheters inserted into the groin and up to the heart, these areas can be precisely located and cauterized by special catheters that can eliminate the “circuit” and often cure these abnormal heart rhythms.