Madalot wrote:Question: Is IPAP of 11 high enough? When on my side, I seem to need a basic IPAP of around 14-15, jumping to 17+ when I get to sleep.
Well, I would have the question of whether 17+ is absolutely necessary to save your life, or just to achieve perfect breathing. If I were you, I would be more in a quest for quality of life, which means restful sleep. Definitely you need to use your oximeter to see what happens, but I'm betting that nothing terrible is going to happen if you lower the IPAP, though you may not clear all events as effectively as you would with higher pressures.
You might even consider turning up the oxygen a bit to compensate. Supplemental oxygen cannot completely compensate, because if you actually stop breathing, you can't get more oxygen in, but the air that is already in your lungs will have more oxygen than it would if you didn't receive supplemental oxygen. Therefore, it might be helpful to raise the level a bit.
My AHI is between 2 and 3 most days. I could get it lower than that, but my quality of life would indeed suck more at a lower AHI because of the consequences of the kinds of changes I would have to make to get there.
For what it's worth, my oxygen levels went well below 90% for long periods of time each night, probably for decades, and I'm still here and doing relatively well. It's clearly a very bad thing, but it's also true that dipping below 90% doesn't always kill you.