Hi, I had an upper thoracic radiofrequency sympathectomy(ablation) done in 1991 by Dr. Harold Wilkerson at the University of Mass in Boston. I was fortunate. There were very few being done at that time. They use to crack a rib, puncture a lung, and the surgery was horrific before RF. I hate to tell you my results....no harm done but, no long term benefits. Now, having said that, it doesn't mean your results will be the same. I hope your outcome will be great. Let us know. Diana