Yes, I had it, but in hospital! I wouldn't have this in an office!!! This a truly awful procedure, even though if you need it, you need it. Do you really? Look it up!
There's a pretty long recovery and you're miserable. Nose is held open with nasty plastic stents, lots of packing. You go home with a gauze "mustache" to catch the excess bleeding. Pain meds don't help much.
I had a choice of the clinic downstairs where they do this - line up the patients up like sheep. No thanks. I wanted to be where they could at least deal with complications. But in office? Not in my dreams!
This did not stop my chronic sinus infections. It does make it possible to wash out the sinuses more thoroughly. It's not possible to get saline rinse into the original tiny holes. But the maxillary drainage is still upward, so I have to lie down to get them to drain after rinsing.
I presume the doc is planning on placing the tube from the shunt into your sinus area. Ask about the possibility of germs getting up into it. I wouldn't have this because I continue to have frequent sinus infections.
Isn't there anything else left to try for the original problem? I'm not even anxious and this would scare me.
PS: if you are rinsing sinuses, or will need to in the future: Don't use tap water. Brain-eating amoeba has been found in tap water as far north as Wisconsin. I use only distilled.