Re: elecrophysiology study
Electrophysiological studies of the heart involve, as you say, placing wires into the heart. This is done so that the heart muscle can be electrically stimulated and abnormal rhythms etc may then be studied. I am answering your question generally as I don't know why you are having the procedure (or your history) and I am not medically qualified. However, I have undergone the procedure twice myself to stimulate ventricular tachcardia. In my case the procedure was done under heavy sedation, ie not a general anaesthetic. The wires are passed up to the heart via various arteries after a catheter is inserted in the artery in the groin area.This sounds a bit gruesome but is pretty straight forward and not uncomfortable even without sedation.You need the sedation if your heart is electrically stimulated. The procedure is usually carries out in what is called a cathether lab. which is like an operating theatre (room) with more imaging equipment.It is not a distressing or painful procedure so don't worry about it, especially when you go in to have it and see all the equipment! Your groin area will be a bit sore for a couple of days.I would be interested to know why you are having these studies done and other cardiac details if you would not mind. All the best.