I recieved gamma knife from dr kondziolka at upmc in Pittsburgh! He is an amazing doctor and very compassionate. He told me he has done 11,000 GK procedures and has over 98% success rate. I hate to say that I was one of the 9 patients he has that has had regrowth after gamma knife, but he referred me to yet another amazing team of doctors and I'm doing great, 5 weeks post surgery! If you want more information please feel free to pm me, and there we can even exchange numbers to discuss dr k and uPmc a little more! Good luck and I hope to hear from u!!!