attempting to post SH data--first try!

General Discussion on any topic relating to CPAP and/or Sleep Apnea.
andalex
Posts: 7
Joined: Wed Apr 15, 2015 2:27 pm

attempting to post SH data--first try!

Post by andalex » Thu Apr 16, 2015 9:24 pm

I would love any feedback anyone has to offer. I started CPAP tx on 4/10 so have less than a week under my belt.

This night had the highest AHI:
Image


This night was on the lower side:
Image

I know it looks like I got tons of sleep both nights, but a lot of that was awake time, especially on either end.

TIA!

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Pugsy
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Location: Missouri, USA

Re: attempting to post SH data--first try!

Post by Pugsy » Fri Apr 17, 2015 3:26 am

The Sunday April 12 report....did you by chance do some sleeping while laying on your back?
Especially when you see those clusters of snores...

If you see events flagged when you know you were awake you have to mentally remove those events from your evaluation of the data.

Your leak rate looks real good. It's easy to see the leak spikes and I suspect those are where you are simply readjusting the mask a bit and I would just ignore those spikes.

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andalex
Posts: 7
Joined: Wed Apr 15, 2015 2:27 pm

Re: attempting to post SH data--first try!

Post by andalex » Fri Apr 17, 2015 8:58 am

I think I was lying on my back for the cluster around 4am. I can't remember specifically, but I might have been awake/half awake for the business starting around 6am. How are vibratory snores really measured? I ask because I frequently get a little moisture in the mask that kind of rattles, so I wonder if some of the vibratory snores that are being picked up are actually rain out. My partner has not reported hearing any snoring, either.

For the leak rate graphs...what do the two different lines signify? Is the top one L/min?

My study report didn't give my AHI, just RDI. That is basically AHI plus RERAs? Either way, this is clearly a lot better...My RDI was just shy of 40 without CPAP.

Is there any significance to pressure pulse?

Thank you!

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Pugsy
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Location: Missouri, USA

Re: attempting to post SH data--first try!

Post by Pugsy » Fri Apr 17, 2015 9:44 am

andalex wrote:Is there any significance to pressure pulse?
No. Pressure pulses are nothing more than tiny puffs of air that the machine uses to determine if the airway is open or closed and they don't always coincide with a flagged event. Maybe the machine sensed a reduction in air flow and couldn't tell if it was because the airway tissues had collapse or if the airway is open but maybe whatever it sensed didn't grow up enough to earn a flag.
andalex wrote:For the leak rate graphs...what do the two different lines signify? Is the top one L/min?
Top line is total leak in L/min. Total leak is the mask's expected vent/intentional leak rate plus any excess leaks.
So it won't ever be at 0.0.
The bottom line is a close approximation of excess leak only which is similar to what ResMed machines report. It's not exact though because of several varying factors.

Your machine will report large leak ...see the LL in the events graph? That's large leak which means you went into large leak territory briefly. Looks like your large leak territory begins up around 80 L/min total leak.
The machine will still do a decent enough job reporting until you cross over 100 L/min total leak and after that it sort of becomes clueless as to what is going on.

It's pretty easy to see that your mask isn't having much in the way of excess leaks except for the brief spikes and I wouldn't worry about such a small amount of time spent in large leak territory unless leaks are waking you up often.

Yes...RDI is pretty much AHI plus maybe the RERAs but could include something besides RERAs.
RDI Respiratory Disturbance Index...other things besides the events included in the AHI can disturb the respiratory drive.

Snores...it might be moisture vibration.
I would have long blocks of snores show up when my little Pug dog (who snores something fierce) would go to sleep with his chin on my shoulder.
Snores could also be low level airway collapse and the tissues vibrating. Unfortunately your machine in cpap mode doesn't flag flow limitations at all so we don't know what might be going on in the Flow Limitation department which might give us a clue as to whether those snores are real or not.
You would need to be using apap mode to get FL event flags.

If you notice the snores seem to increase during some OA clustering and you also are seeing some RERAs at around the same time of the snores. I am betting the snores are real but low level collapse and maybe just enough to disturb sleep a little (those RERA flags).
If you were using apap mode and the machine increased the pressure in response to the snores then they are real...
when I would see my Pug snores for 2 hours...my machine never increased the pressure because they weren't related to my airway.

Your machine has some limited APAP trial time available and at some time in the future you might want to give it a try and see what is going on with the FLs and pressure in response to snores...but for now I wouldn't be using up the apap days available until you get more adjusted overall to this therapy and better understand what you are seeing on the reports.

Give things some time...watch the snores and other events and see how you feel and sleep. Things might reduce on their own with time and experience. The data isn't horrible now ...so no urgent need to go changing a bunch of stuff. If you end up with more nights like April 15...and you are sleeping great and feeling good...I don't know that I would do any changes. If you end up with more nights like the not so good report...maybe just a little 0.5 cm increase in pressure to help hold the airway open a little better. It's not urgent though...not something that you just have to do right away.

_________________
Machine: AirCurve™ 10 VAuto BiLevel Machine with HumidAir™ Heated Humidifier
Additional Comments: Mask Bleep Eclipse https://bleepsleep.com/the-eclipse/
I may have to RISE but I refuse to SHINE.

If you want to try the Eclipse mask and want a special promo code to get a little off the price...send me a private message.