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Apnea Events less then 10 Seconds
#1
Apnea Events less then 10 Seconds
I took a closer look at my data, and see that although I only have maybe 1-2 apnea events per night, I am having these similar to apnea type events (for around 6-8 seconds), around 10 times an hour.

I've marked it with red arrows in the attachment.

Any ideas what it is, and how I can fix it, because I still don't feel rested even with <0.5AHI consistently.


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#2
RE: Apnea Events less then 10 Seconds
I would raise my ps 4 and my max to 9.  That is not a large  change but it should help with the flow limits...
Apnea (80-100%) 10 seconds, Hypopnea (50-80%) 10 seconds, Flow Limits (0-50%) not timed  Cervical Collar - Dealing w DME - Chart Organizing
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#3
RE: Apnea Events less then 10 Seconds
There's no flow limits in the zoomed examples that are being shown. Wouldn't that make these central apneas?
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#4
RE: Apnea Events less then 10 Seconds
They could be central and if they are your aircurve has a trigger setting that has helped people with centrals.  you could try setting the trigger to high or very high and that has shown to improve central apnea.
Apnea (80-100%) 10 seconds, Hypopnea (50-80%) 10 seconds, Flow Limits (0-50%) not timed  Cervical Collar - Dealing w DME - Chart Organizing
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#5
RE: Apnea Events less then 10 Seconds
I figured out a way to get OSCAR to show events between 7 and 9 seconds (with 50% restriction). '

Although my AHI is low, that's only for <10sec events, but I still have so many events 7-9 seconds long. How do I treat this, and if its not "apnea" by definition, what is it?

Edit: It's marked as UF1 in the event flags section, and on the flow rate is the light color one.


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#6
RE: Apnea Events less then 10 Seconds
If you wish, you can change the UF1 and UF1 labels to something more descriptive. To do this, go to File (OSCAR on a Mac) > Preferences > Events and look down the list for "User Flag #". The label can be changed in the 4th column to the right by double-clicking on it and entering something else.

Remember to keep it simple and short. I would advise against something like "Minor Respiratory Obstruction". It's a little wordy. Big Grin
- Red
Crimson Nape
Apnea Board Moderator
Project Manager for OSCAR - Open Source CPAP Analysis Reporter
www.ApneaBoard.com
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Useful Links -or- When All Else Fails:
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