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What are these peaks?
#1
What are these peaks?
I'm looking at the OSCAR data, and I'm not getting many apnea events, but I do see these little peaks and irregularities in flow rate throughout my sleep. Is this just tossing and turning? RERAs? REM sleep? I also noticed a point where my flow rate was very smooth then suddenly started having these irregularities. Is this when I actually entered REM? I'm wondering because I noticed the respiratory rate sort of cycles in the latter part of the night. Any other insights are appreciated.


Context:
I have mild sleep apnea (AHI 6.5). I'm a week into using a Resvent iBreeze 20A APAP machine and I'm still getting used to it. Right now my sleep feels worse than before and I'm getting headaches. I was initially on 4-20 with ramp, but I changed it to 4.5-20 no ramp so I didn't feel like I was suffocating. Keeping IPR at level 2 seems to be most comfortable. My pressure never seems to go above 6, which seems low, but anything above 6 does feel like a lot of pressure to me.


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#2
RE: What are these peaks?
Those are arousals e.g. turning over, snorting, sighs, etc. Nothing unusual.

Consider setting your pressure to min 6, max 12, IPR 2 (or maybe min 7 IPR 3 if more comfortable). The bit of extra pressure should help with the flow limitations.

It may take a few days to get used to it, but I hope you’ll find it more comfortable in the long run.
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#3
RE: What are these peaks?
Would you mind zooming in a bit further on these respiratory flow issues. I can probably interpret them, but I also see an error in our Resvent machine respiration rate. What version of Oscar is this? I'd like to help figure out what's going on for you and correct some errors in Oscar.
Sleeprider
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#4
RE: What are these peaks?
Here's a couple of the flow issues zoomed in. I also attached a screenshot of what the data looks like for a marked apnea and hypopnea (there also seems to be an unmarked one in the middle). I'm using OSCAR 1.5.1. I heard Resvent and OSCAR don't mix well.


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#5
RE: What are these peaks?
The spikes are large large breaths intakes followed by breath-holds followed by slow exhale, irregular shallow air movement, or what is flagged as apnea. This looks to be a change in position rather than any respiratory issue to be concerned with. It is common for people to take a large breath ahead of a major change in sleep position.

Your respiration rate is 12 bpm and is shown as a median of 1.0, 95% of 1.0 and max of 5.0, so something is wrong with that statistic. The I:E statistic is also incorrect and the pressure settings also appear incorrect. What your your current settings? I plan to take this to the Oscar team.
Sleeprider
Apnea Board Moderator
www.ApneaBoard.com

____________________________________________
Download OSCAR Software
Soft Cervical Collar
Optimizing Therapy
Organize your OSCAR Charts
Attaching Files
Mask Primer
How To Deal With Equipment Supplier


INFORMATION ON APNEA BOARD FORUMS OR ON APNEABOARD.COM SHOULD NOT BE CONSIDERED AS MEDICAL ADVICE. ALWAYS SEEK THE ADVICE OF A PHYSICIAN BEFORE SEEKING TREATMENT FOR MEDICAL CONDITIONS, INCLUDING SLEEP APNEA. INFORMATION POSTED ON THE APNEA BOARD WEB SITE AND FORUMS ARE PERSONAL OPINION ONLY AND NOT NECESSARILY A STATEMENT OF FACT.
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#6
RE: What are these peaks?
I believe I was using 4.5-20 cmH2O pressure with IPR 2. I've just ignored the data in the left sidebar since it doesn't seem to be super accurate. I've also tried using iMatrix to see the data since it's made for Resvent, but OSCAR has been easier to use. The pressure data from iMatrix lines up best with "mask pressure" in OSCAR. iMatrix doesn't show resp. rate or I/E data to compare. The leak data and AHI graphs appear the same from what I can tell.

Thanks for the help!
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