here is a link to the anaesthesia issue in children.http://www.newsweek.com/id/165041
just randomly I happen to be an SLP as well and I'm highly skeptical of the "tongue tie" surgery recommendation. how does the naturopath think a tongue tie is impacting him negatively? did he have trouble breastfeeding? I tried googling the connection between tongue tie and sleep apnea and only found it mentioned by one guy (brian palmer). I'm skeptical of his ideas because he just seems so militant about tongue tie being the source of every problem. One kid's bed wetting was attributed to tongue tie. WTF??
I just can't understand the theory behind how a tongue tie would cause or contribute to sleep apnea. The whole issue with tongue tie is that tongue being anchored in the front. If anything, it causes tongue thrust and open bite. Sleep apnea has to do with an obstructed airway. Big tonsils make sense, as does extra weight/neck tissue (older folks who are obese like my dad often have it), but how would holding the tongue in a more forward carriage do anything (except possibly help) to affect the airway.
I would get a second, or third, opinion personally. But its possible he knows something I don't. I'd just need more information before doing that surgery.
Also, for what its worth, many children I see for speech for /s/ and /z/ frontal lisps and have a tongue thrust also have enlarged tonsils. makes sense, right? they thrust their tongue forward to make room in their airway since the tonsils are taking up so much space back there.