I had CTS for years & did not know what it was. It would wake me at night every 2 hours with pain & numbness in my hands. The doctors did not know what was wrong, just guessed this & that.
Finally in the early 90's a doctor said it may be CTS & sent me for the shock tests. Extreme in one hand & just bad in the other.
I had the surgery. A small 1 inch incision at the base of each palm. They cut the tunnel for more room for the nerves.
It cured the problem in one hand & reduced the pain & numbness in the extreme case hand about 75%.
I still get pain & numbness in that hand, but not as often or as bad as before sutgery.
I wish I had the surgery years earlier, but years ago not many doctors new what to do or the proper surgery to help it.
Make sure your surgen has done many operation for CTS. You do not want to be a learning experience for him.
Good luck,
G