Yes, I did! ALthough it was 1990- 1991, I think was one of the first few to have an "Upper Thoracic Radiofrequency Sympathectomy". Mine was done at the Univ. of Mass. The doctors in my area were still entering from the front of the chest to reach the spine with surgery. So traveling to Boston was OK, so I did't have to have a large incision on my chest.
I don't know how different they are today, but in my personal case....it was temporary pain relief. I still have a very little sweating in my right hand (basically none) and very little sweating on the right side of my upper body.
I'll try to talk to you tonight. Maybe others will have more recent experience, than me. Hugs Di