Yep, try the non-surgical alternatives first, especially the wrist splinting. Just be advised that almost 50 percent will NOT result in alleviation enough to satisfy most people. Once you reach the point that sleep is difficult, or that you start to drop things, prepare for the need for surgery.
While endoscopic surgery for CTS is good, results using open surgery has better results. Your wound will be 2 inches long or less, and if your surgeon is good, the procedure will be over in @ 15 minutes. It can be performed with local anesthetic, though those with very low pain tolerance may opt for a regional anesthesia block, or even GA.
The procedure is actually quite simple. It just involves cutting the skin of your palm, going through the subcutaneous tissue to get to the fibrous band that forms the roof of the carpal tunnel. Once located, the fibrous band is gently undermined to make sure no important structures inside will be inadvertently injured, then the band is snipped or cut apart. Your wound is then washed, and sutured full-thickness, meaning just one suture layer is done to rejoin your wound edges.
Post-operatively, you will have to wear a protective splint for 10-14 days, after which it is removed and rehab exercises, which have been begun while the wrist was in the splint, are continued until full function returns. numbness will be present in some cases, but invariably recovery will ensue, unless the surgery has been, ah, f*cked up.
Dangers during surgery involve inadvertently cutting the artery that runs in the lateral portion of the wound, or cutting important nerves that run medial to the wound. Again, a competent surgeon will be able to avoid 'em.
Good luck, sir. I hope this helps.
And, oh yes. have one hand done at a time. Having both hands in post-op splints sucks goat balls bigtime!