Tried Hybrid Mask.. Data review help please :)

[DyannaK]

Hi Everyone, After reading all the information here about the Hybrid Full Face Mask I decided to give it a try. It arrived yesterday and I spent late afternoon/evening getting it all set up. Thanks to Rooster for all the wonderful advice and hints posted I used the mask last night and I feel like it worked out very well.. I just wanted to post the pic of my stats from last night along with the AHI numbers. Do these numbers and the leak information look alright? Or is the leak too high?



This was for last night....

Pressure - 12
AHI - 1.7
AI - 0.1
HI - 1.6

Leak - L/M
Median - 22
95th Percentile - 27.6
Maximum - 39.6


Sunday Night using the AEIOMed Mask...

Pressure - 12
AHI - 4.7
AI - 0.3
HI - 4.4

Leak - L/M
Median - 8.4
95th Percentile - 31.2
Maximum - 44.4

Thanks for any help and information... I love this site and appreciate the wealth of information found here and all you wonderful people who are so willing to help with any questions asked

[riverdreamer]

Did you re-set the machine for your mask? I can't remember, but think maybe you need to set it to "standard" for the Hybrid mask. That will make a difference on how your leak rate shows up.

If you did set it, your leak rate looks a little high. Not terrible, but could be improved on. It does look much more stable than the Aeiomed, which is good. It is possible that it will improve as you get used to it. If by chance you still have the machine set for a nasal pillow type of mask, then the leaks may be showing higher than they really are.

[DyannaK]

Thank you for responding... My machine is set on standard. I have been having such a hard time figuring out median vs maximum leak and what exactly each one means... For some reason I just cant seem to get my head around it and make sense of it...

[riverdreamer]

Median means the number half-way between the highest leak, and the lowest leak. It doesn't mean the average leak. The maximum is just that, the highest leak you had that night. On your chart, the red line is the boundary for leaks that are considered too high on that machine. If the leak line is running close to the red line all night, it means your leaks are higher than optimum. If the leak line crosses the red line, then it is considered too high.

The leak line with your Hybrid is less up and down, so it looks like your leaks are a little high, but fairly stable. With the Aeiomed, it is much more jagged. With that mask, you have part of the time at a lower, better leak rate than the Hybrid, but much more time at the leak rate that is just too high. With that mask, on that night, you were getting lots of sudden, extreme leaks, that also corrected fairly quickly. It looks like the fit isn't as stable on that mask, so you probably get leaks when you move. The Hybrid has very little spiking, so no sudden, extreme leaks. Just a slightly high, steady leaking. However, your other data looks good. If you feel OK, then you might just watch the data for a few more nights, to see what the pattern is. If it stays even, you feel good, and the numbers look good, you may not need to change anything.

[DyannaK]

Median means the number half-way between the highest leak, and the lowest leak. It doesn't mean the average leak. The maximum is just that, the highest leak you had that night. On your chart, the red line is the boundary for leaks that are considered too high on that machine. If the leak line is running close to the red line all night, it means your leaks are higher than optimum. If the leak line crosses the red line, then it is considered too high.

Is the 95th percentile just below the Maximum leak then? So higher than median and lower than maximum? Thank you for explaining the different meanings. I will definitely keep an eye on the data and see how it goes

[DreamStalker]

Hi Everyone, After reading all the information here about the Hybrid Full Face Mask I decided to give it a try. It arrived yesterday and I spent late afternoon/evening getting it all set up. Thanks to Rooster for all the wonderful advice and hints posted I used the mask last night and I feel like it worked out very well.. I just wanted to post the pic of my stats from last night along with the AHI numbers. Do these numbers and the leak information look alright? Or is the leak too high?



This was for last night....

Pressure - 12
AHI - 1.7
AI - 0.1
HI - 1.6

Leak - L/M
Median - 22
95th Percentile - 27.6
Maximum - 39.6


Sunday Night using the AEIOMed Mask...

Pressure - 12
AHI - 4.7
AI - 0.3
HI - 4.4

Leak - L/M
Median - 8.4
95th Percentile - 31.2
Maximum - 44.4

Thanks for any help and information... I love this site and appreciate the wealth of information found here and all you wonderful people who are so willing to help with any questions asked

I can't see the photobucket pic from my work PC ... but you are clearly leaking out of your mouth with the headrest mask based on the leak stats provided.

With the hybrid, mouth leaks don't matter. If you are comfortable using the hybrid, I would consider using/perfecting that mask for better treatment. An AHI of less than 3 is generally pretty darn good for a ResMEd machine.

[DyannaK]

Thank you DreamStalker. I thought mouth leaking was what I was doing with the Headrest. I am hoping to keep tweaking the Hybrid and get it to work because I really love the design.. Mostly I was concerned about leak numbers since I have had such a problem figuring out what exactly they mean. So the leaks should stay BELOW the red line and should be as close to a flat line as possible?

[DreamStalker]

Thank you DreamStalker. I thought mouth leaking was what I was doing with the Headrest. I am hoping to keep tweaking the Hybrid and get it to work because I really love the design.. Mostly I was concerned about leak numbers since I have had such a problem figuring out what exactly they mean. So the leaks should stay BELOW the red line and should be as close to a flat line as possible?

Yes. THe FF masks generally have higher CO2 vent rates and hence higher leak rates. You want leak rate plot to be as flat or "level" as possible. A few small jumps here and there are ok. If the there is a large peak and valley pattern to the leak plot, then leaks are a problem and other efficacy data cannot be trusted.

[robertmarilyn]

The one thing I'm usually good at is 0 on leaks...I can't really help you with that part...actually I can't really help you with anything

But wowie...your data looks so pretty...I'd love to have results like you have!

mar

[DyannaK]

The one thing I'm usually good at is 0 on leaks...I can't really help you with that part...actually I can't really help you with anything

But wowie...your data looks so pretty...I'd love to have results like you have!

mar

thanks Mar when I had my first sleep study I had 87 obstructive apnea events and 5 central apneas. My averages were 34.3 events per hour with oxygen dipping to 82% Since I started on CPAP I feel like I am doing so much better. In looking at my numbers I can tell they are sooo much better than when I first began. I just want to make sure I am doing the best I can do