Titrated pressure vs Current

[Apneak]

Hi, of those of you that have self-titrated using oscar or sleephyhead as well as had an in lab titration, what was the spread between your lab-titrated and self-titrated pressures?

[ChicagoGranny]

Are you having problems with your pressure settings?

[LSAT]

Lab titrated pressures are fore only 1 night and then only a couple hours. It's not unusual to need an adjustment from that. I was originally titrated at a fixed pressure of 8..For the past 10 years I have been at 12/20.

[chunkyfrog]

I was titrated at 14 cm, single pressure.
After 9 months of misery, I purchased an autoset out of pocket.
The lab was at least 3 cm too high.

[AndyB]

I was titrated 6 years ago in an in lab sleep study at 11.0 fixed with an AHI of 44. I use 6.2 min EPAP, 16.0 max IPAP (have never hit it), and 2.2 PS on a ResMed VCurve VAuto (bought 2 years ago from LSAT). My average EPAP for the last year is 7.1, 95% IPAP is 10.7 and AHI is 0.8.

[Apneak]

I was titrated 6 years ago in an in lab sleep study at 11.0 fixed with an AHI of 44. I use 6.2 min EPAP, 16.0 max IPAP (have never hit it), and 2.2 PS on a ResMed VCurve VAuto (bought 2 years ago from LSAT). My average EPAP for the last year is 7.1, 95% IPAP is 10.7 and AHI is 0.8.

Wow, you're saying you had an AHI of 44 WHILE on 11cm? that's nuts. Glad you had good results with Bipap...I also found that Bipap mysteriously worked at dramatically lower pressures, flow curve wise. Sleep quality was prob better with cpap for me tho.

[Apneak]

Are you having problems with your pressure settings?

I would say they've been in flux basically for 2 years, when I first realized I could see the data on Oscar. A recap:

Initially was just given a large range on apap, which is completely useless as most of you know, though I didn't. Prob averaging ~7.5 cm ipap with 3cm pressures relief on epap. But I got no symptom improvement and this:

Screen Shot 2021-06-05 at 12.57.41 PM.png (52.31 KiB) Viewed 545 times

Which I thought didn't look right, and so I started titrating up myself, eventually settled on 9.6cm ipap with 3cm relief, and got results like below in the 1st hour or so. Some scattered flow limitations, but consistent for the first hour, then smooth through out the rest of the night. Some definite symptom improvement here, but not consistent.

Screen Shot 2021-06-05 at 1.02.22 PM.png (42.25 KiB) Viewed 545 times

Then I got lab titrated at 8cm for ipap/epap!

I hesitated going further up because of leak problems. I'm using a p30i nasal pillow, and while I'm not a 'mouth breather', my mouth does fall open during sleep. So I use a chinstrap, which is effective at 10cm ipap or below.

In order to smooth out that first hour's flow curve, I need to juice the pressure to 10.8cm ipap, (3cm relief). Then I get results like this through whole night (screenshot taken from first hour):

Screen Shot 2021-06-05 at 1.09.03 PM.png (64.21 KiB) Viewed 545 times

But this blows open the mouth leak, so I need tried taping my mouth in addition to chinstrap, which does help. But i'm still having about an 30-60min of >20cm leakage a night, which is not good IMO. I'm pretty sure it's still leaking around mouth and not nose, since it would have to be dislodged to leak from my nose, which I don't notice happening. I guess I can video record myself to be sure. I'm just going to try to tighten the strap a bit and use a longer piece of tape, but that's about all i can do
Ive tried the full face hybrid masks, but they don't work for me because I have a beard. p30i I think is generally great.

I really want 10.8cm to work, but I was just really surprised that the lab titrated me at 8cm, and I was curious if you guys had similar experiences.