I think he probably forgot the aerophagia thing....either that or he is one of the people who don't see a relationship between pressure and aerophagia.
I am on the fence about the in lab titration sleep study. The only thing that might be gained is sleep status or sleep stages...assuming you actually sleep soundly. I had an in lab titration study....full night devoted to it and I simply couldn't sleep between the idiot asshole sleep tech trying to force a mask on me that I couldn't use and telling me big whopper lies and the foreign environment....I got 156 minutes of sort of sleep with only 6 minutes in REM where my OSA is worse. Waste of my time and money for sure and if I had it to do over again I wouldn't do it unless I was having serious problems getting issues sorted out at home with the apap machine.
I ended up doing my own self titration at home anyway.
I think I would ask him exactly what he hoped to learn with it or was he just going on a fishing expedition. What is he hoping to catch.
Maybe schedule it for a few weeks in the future and give yourself time to get your sleep quality under better control and improve the chances of actually getting some sleep. If you get your problems sorted out before the in lab study....cancel it.
BTW that 90% number is just a number and not any sort of holy grail of optimal settings. All a 90 % number is...is a number that you were at OR BELOW for 90% of the night. It is easily skewed to the high side by relatively short periods at a higher number.
Often makes things look a lot worse or dramatic than they really were.
I don't have a good 90% number for pressure as an example but I do have a good example of leak numbers looking worse than they really were. Same principle applies to pressure and you can see how easily the overall 90/95% numbers were elevated by just a short period in large leak. ResMed report...they use 95% instead of 90 % but the definition is still the same.
viewtopic.php?f=1&t=108724&p=1036669&hi ... t#p1036669
I used to have a similar example for Respironics pressures but the links are broken. I need to fix another one but it showed a 90% pressure of 17 cm....but my overall average was around 10. To put me on 17 cm fixed pressure....overkill for sure and not much fun.
I may have to RISE but I refuse to SHINE.