Nasal mask vs. full face mask issues

General Discussion on any topic relating to CPAP and/or Sleep Apnea.
mets123
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Nasal mask vs. full face mask issues

Post by mets123 » Wed May 25, 2022 11:58 am

I usually use a dreamwear nasal or bleep mask and usually get no leaks and an AHI below 1. When I use my ffm my 95% pressure is always higher and my AHI is usually over 2. Is it true that I will need to raise my pressures and or pressure support to tackle the apneas and hypopneas that result when I wear my full face mask. I like to wear my ffm to give myself a break from mouth taping. Is this always the case of needing higher set pressures when using a ffm?

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Pugsy
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Re: Nasal mask vs. full face mask issues

Post by Pugsy » Wed May 25, 2022 4:40 pm

mets123 wrote:
Wed May 25, 2022 11:58 am
Is this always the case of needing higher set pressures when using a ffm?
May not "always" as in set in stone but it's not uncommon either. Not sure exactly why but I have seen it too many times to pooh pooh it off either on the reports I see posted or what people tell us.
I know one guy who can get by with 2 to 3 cm LESS pressure with a nasal mask compared to what he had to use to get similar results with a full face mask.
See what perrybucksdad talks about here
viewtopic.php?p=663440#p663440
I had to nearly break his arm to get him to even try a nasal mask. :lol: :lol:

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mets123
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Re: Nasal mask vs. full face mask issues

Post by mets123 » Wed May 25, 2022 5:18 pm

Thanks, will check it out.

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mets123
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Re: Nasal mask vs. full face mask issues

Post by mets123 » Wed May 25, 2022 6:03 pm

Does anyone else have a situation in which describes similar to my issue?

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Architect
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Re: Nasal mask vs. full face mask issues

Post by Architect » Fri May 27, 2022 3:22 pm

It's been years since i used nasal pillows, but from what I remember, when i switched to ffm, clinic continuely raised my pressure from 7 to 14....

mets123
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Re: Nasal mask vs. full face mask issues

Post by mets123 » Sat May 28, 2022 2:04 pm

Thanks architect.

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Chris33022
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Re: Nasal mask vs. full face mask issues

Post by Chris33022 » Sat May 28, 2022 2:11 pm

mets123 wrote:
Wed May 25, 2022 6:03 pm
Does anyone else have a situation in which describes similar to my issue?
Yes, I definitely have the same issue. I usually wear a nasal mask (P10) but when I occasionally switch to a full face mask, not only do I need higher pressure, but my AHI is always much worse than when I used the nasal mask. I heard it's extremely common (at least the part about needing higher pressure for a full-face mask).

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ChicagoGranny
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Re: Nasal mask vs. full face mask issues

Post by ChicagoGranny » Sat May 28, 2022 2:44 pm

mets123 wrote:
Wed May 25, 2022 11:58 am
Is it true that I will need to raise my pressures and or pressure support to tackle the apneas and hypopneas that result when I wear my full face mask.
When you open your mouth, the mandible (lower jaw) moves backward slightly as shown in this illustration.

Imagehttps://pocketdentistry.com/4-mechanics ... e%204%2D2).

When the mandible moves backward, it tends to constrict the airway. This slight constriction may mean a higher CPAP pressure is needed as compared to when the mouth is closed.

Folks, it ain't the mask, it's the movement of the jaw.

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Chris33022
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Re: Nasal mask vs. full face mask issues

Post by Chris33022 » Sat May 28, 2022 6:45 pm

ChicagoGranny wrote:
Sat May 28, 2022 2:44 pm
Interesting! Thanks for explaining.

mets123
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Re: Nasal mask vs. full face mask issues

Post by mets123 » Sat May 28, 2022 11:00 pm

Thanks Chris and Chicagonanny, guess I will start making some pressure changes when I use my ffm.
Glad to know it’s a pretty common thing .

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