Need Help - AHI's Much Higher With Full Face VS Nasal Cushion

[brianc18t]

Just to be sure: when you switch between one mask type and another, do you change the mask setting on your machine?

I have been unable to find what number to use with the F30i.... but would like to figure out if I should change get it.

[Crimson Nape]

From my understanding, any mask other than a Philips, uses a setting of "0" (zero).

[SarcasticDave94]

My understanding on the resistance mask setting is the same as Crimson Nape's. If it's not a Respironics mask, set it to zero.

Alternately, you can try the other settings and see what gives you the best results on feel and numbers.

[brianc18t]

I tried 0 for the mask setting and a pressure if 17.5 to 20 part of the night and 19 to 20 the second half of the night and my AHI was still around 10.....

[Gideon]

You can set the chart order by, next to File
Click View / Reset Graphs / Standard
Using F12 to take a screenshot will remove the pie chart, calendar, and right sidebar, take a screenshot a ND then restore them.

Are you using a soft cervical collar? Your screenshot showing your events charts shows significant clustering which indicates chin tucking. A collar will correct that. See my signature.

[brianc18t]

Just to be sure: when you switch between one mask type and another, do you change the mask setting on your machine?

I have no tried the soft cervical collar yet but I am still having the issues. The other night I tried the full face (not sure why I bothered) but my AHI was up around 12 so I switched back in the middle of the night so I wasn't exhausted the next morning.

[SarcasticDave94]

Let's see a current OSCAR chart so we have info to suggest settings. I'd think a standard full view OK to start with on the several month revisit.

[brianc18t]

Thanks Dave.  

The first half of the night was with my full face mask.  As you can see, the AHI climbed up to around 23 before I woke up.  The leak rate is no worse (maybe a bit better) than with my nasal mask that keeps the AHI's down in the lower single digits. It looks like I maxed at the 17 pressure limit I had set, but I have had it set for a max of 20 before and it still has high AHI's.

Normally I run my pressure at 12 or 12.5 to 15 when using the nasal mask.... but it doesn't make much difference if I run 12 or 14 as my base pressure.... my AHI's are usually 1-3. The order of the thumbnails is reversed from how you probably want to see them.

[brianc18t]

Here is the day I had a base pressure of 17.5 and a max of 20.

[Dormeo]

As Bonjour mentioned, you might benefit from using a soft cervical collar. Have you tried that yet?