You may avoid having open-chest surgery. There are some risks when you have general anesthesia. Discuss these risks with your doctor. A local anesthetic may not numb the area quite enough and you may feel some minor discomfort. Also, in rare cases, you may have an allergic reaction to the drug used in this type of anesthesia.
Local anesthesia is considered safer than general anesthesia.
There is a risk of infection or bleeding from this procedure. Your heart may beat in an unusual way. You may need medicine, electric cardioversion, or a temporary pacemaker. You may have an allergic reaction to the dye. You could become nauseated or flushed.