Targeted Hypoglossal Neurostimulation (THN) is a rather high tech and obviously high cost alternative to CPAP. It is an implant, similar to a heart pacemaker, that makes a little electrical signal to the hypoglossal nerve and the muscle that keeps the tongue from collapsing and closing off the throat. There is a company in Belgium, ImThera, that is claiming great success with this. There are also two companies in the US, in Minnesota, who are working on getting FDA approval for a similar device. I think the idea is that the electronic control unit for this only activates when needed, according to some sort of respiration monitor. I think the Belgian unit just stimulates the tongue muscle continually -- the shotgun approach. ImThera seemed farther along in the development of the product, so I contacted them to ask what the cost would be: About $30,000, and not approved for sale in the USA. That slowed me down quite a bit. The positive side of the ledger would be that it is unobtrusive, silent, and ostensibly effective. Might be worth the cost of a trip to Belgium, but they said, in effect, "This doesn't work for everybody. Your mileage may vary."
So, technically, this is surgery; they cut you open; but it's not to carve away part of your throat, and there is not the same degree of pain and suffering associated with some of the other more barbaric techniques.