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SleepingTight
Unread post  Post subject: Advice interpreting Oscar Event Data  |  Posted: Sun Jun 27, 2021 8:42 am

Joined: Sun Jun 20, 2021 1:00 pm
Posts: 8
PAP Mask: Resmed AirFit N20
PAP Machine: BiPAP Resmed AirCurve 10 VAuto

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Hi all, I have been using Oscar for a couple of months to interpret data related to a trial I am doing but I am not sure I am reading things right.

Last night I had 9 events over 8 hours or so -- mostly CA. The night before I had zero CA events and only 1 OA.

I am curious if I can interpret anything from the charts related to whether or not things are treated well or any other observations.

I am also curious about the leak rate - as pressure has been titrated up - leaks have increased. I feel some air sometimes leaking out of the bottom of the mask when I move my head on the pillow and I wake up with mild effects of "wind" in my eyes so I assume it is leaking a bit on the top. I think I have the mask fitting as well as I can but I will try adjusting it again and I'm going to go in and try another mask next week (any recommendations - currently using ResMed AirFit N20).

thanks for any advice.

(I think I followed the advice for posting screenshots, but it is my first time so if I got it wrong please let me know)


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Respirator99
Unread post  Post subject: Re: Advice interpreting Oscar Event Data  |  Posted: Mon Jun 28, 2021 1:19 am
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Joined: Mon Apr 27, 2020 1:06 am
Posts: 339
Location: Australia
PAP Mask: Resmed Airtouch F20
PAP Machine: Resmed AirCurve 10 CS Pacewave ASV
Pressure Setting: Min EPAP: 8.0 Max EPAP: 11.0 PS Min: 3.0 PS Max: 8.0

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G'day SleepingTight, welcome to the forum.

If this is a typical night for you, then the result of AHI = 1.11 is extremely good. If you're feeling well rested and refreshed, then there's little else to do.

Your leak rate is entirely below the "red line" of 24 L/min, so your machine can easily compensate. But if it's disturbing your sleep, then you need to do something about it. The air blowing into your eyes can be overcome by using a mask liner - fabric which goes between the silicon and your skin. Have a look for Pad-a-cheek, who make some good liners. A cheap alternative is to take a square of pyjama fabric, fold it so you get a strip ~100mm long x 25mm wide and 3 or 4 layers thick. Drape this over your nose before donning your mask - it should form a nice protective seal and prevent those leaks. Otherwise, try adjusting the headgear to give a firm (but not tight) fit.

One final point - why do you have a VAuto machine? Do you have other health issues besides apnea? There is the slightest hint of "periodic breathing" which could possibly be associated with a heart condition. Look at the flow rate just after the apneas at 01:40 - see that waxing and waning pattern? If the machine flags these as periodic breathing and you get central apneas after every wax/wane cycle then it would be worth discussing with your doctor. Just something to be aware of, but don't be alarmed by it.

Just summing up - your apnea is very well treated. There are some steps you can take to avoid the leaks waking you, and a minor heads up to keep an eye on the periodic breathing.

_________________
Regards from Australia

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SleepingTight
Unread post  Post subject: Re: Advice interpreting Oscar Event Data  |  Posted: Mon Jun 28, 2021 4:34 am

Joined: Sun Jun 20, 2021 1:00 pm
Posts: 8
PAP Mask: Resmed AirFit N20
PAP Machine: BiPAP Resmed AirCurve 10 VAuto

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Thanks for the reply Respirator - I was curious about interpreting the data.

This hasn't been a typical night, but it is becoming one. I've only been on the bibap for about two weeks, before then it was cpap for about 6 weeks with increasing pressure. As pressure was increased the events went down consistently and it has been under 4 the last two nights. When I've done an Oxygen study overnight it showed an adjusted event count of just over 5 which is why we're increasing pressure.

I was told the BiPAP was recommended because I was having trouble tolerating the higher pressure and it would be easier and more comfortable on the BiPAP - and it is.

I am still have some issues swallowing air and some pressure in m ears but it is more comfortable than the CPAP.

Thanks for the advice and questions.


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