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S9 Mask Settings for Nasal Pillows???
#1
I have recently been trialing a nasal pillows mask, The Pilairo Q. I like the features of the mask but have not been successful yet. I did notice one thing having to do with the mask type settings.

With my Mirage Quattro and set at full face mask type, the transitions between my 16 cm EPAP and 20 cm IPAP are as smooth as silk. When I used the Pilairo Q with the mask type set for "pillows". the pressure transitions became rather sharp and abrupt.

Once I forgot to set the mask type back to full face when I went back to my Mirage Quattro. The pressure transitions were still sharp and abrupt and had my ffm doing mini pushups on my face. I corrected the setting and it became very smooth.

Out of curiosity, I tried the Pilairo Q with the type setting at full face and got very nice, smooth transitions.

Does anybody know why the full face setting gives me smooth transitions and the pillows setting does not? Can anyone think of any problems that might arise from using a nasal pillows mask with the full face mask type setting? I have not really thought it through but at face value this situation does not make a lot of sense to me.

Best Regards,

PaytonA

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#2
Payton -- it would be interesting if you could post some high rate pressure graphs zeroed in on a couple of cycles for the pillow setting.

Are you running with easybreathe on? Could your unit have switched rise time when you changed mask type settings? IIRC: Trise is grayed out with easybreathe turned on.

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#3
(10-23-2015, 02:03 PM)PaytonA Wrote: Does anybody know why the full face setting gives me smooth transitions and the pillows setting does not?

I was ready to put forth a theory that the full face mask has a larger volume, providing an air plenum that acts like a shock absorber, but you eliminated that as a possibility.

With the PRS1 I know that dialing up a higher resistance setting (like you would do when switching from a FFM to small pillows, for example) simply lowers the pressure a bit.

I can't imagine what would be causing the effect you're experiencing. Have you altered the triggering and cycling settings from their default values? I'm just trying to think if these settings are somehow affected, because those are the settings that affect the transitions between IPAP and EPAP pressures and flow rates.
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#4
(10-23-2015, 02:26 PM)justMongo Wrote: Payton -- it would be interesting if you could post some high rate pressure graphs zeroed in on a couple of cycles for the pillow setting.

Are you running with easybreathe on? Could your unit have switched rise time when you changed mask type settings? IIRC: Trise is grayed out with easybreathe turned on.

Bump2
I have Easybreathe turned on when operating in S mode. I am told that VPAP Auto mode automatically uses Easybreathe. I will check the rise time to see if it might be being changed when changing mask type settings.

Best Belated Regards,

PaytonA

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PaytonA passed away in September 2017
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#5
(10-24-2015, 12:03 AM)Sleepster Wrote:
(10-23-2015, 02:03 PM)PaytonA Wrote: Does anybody know why the full face setting gives me smooth transitions and the pillows setting does not?

.........
I can't imagine what would be causing the effect you're experiencing. Have you altered the triggering and cycling settings from their default values? I'm just trying to think if these settings are somehow affected, because those are the settings that affect the transitions between IPAP and EPAP pressures and flow rates.

I have not changed the trigger or cycle settings. They are still set at factory default. I will check to see if one of them might change when changing the mask type setting. On occasion, one setting will affect another like Mongo mentioned Easybreathe affecting the Rise Time setting by greying it out and taking total control of the transition pressure change.

Belated Best Regards,

PaytonA

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PaytonA passed away in September 2017
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#6
There are some very smart people on this forum and I was hoping I might get more opinions. I realize that not a lot of members have experience with the Resmed VPAP Auto or even Bilevel machines in general but I would be interested in hearing any guesses you folks might have even if you have never seen a VPAP Auto or something from your own experience with other equipment that might possibly transfer.

Best Regards,

PaytonA

Admin Note:
PaytonA passed away in September 2017
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