Not sure what that means. I had a Stellate Ganglion block before surgery and it worked so well that I thought the surgery had worked for 3 weeks.

Bier blocks are routinely done in surgery, but I've read that the increase in RSD developing after surgery has been questioned if the two were linked. I should hunt that up...

I'd verify what you're getting, how they perform it, and what meds will be used. Then research it!

A sympathetic block done properly is a very good idea before surgery!!!