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+--- Thread: OA on Inhale or Exhale? (/Thread-OA-on-Inhale-or-Exhale)
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OA on Inhale or Exhale? - fakename1845 - 11-01-2017
When a person experiences an OA event is that while they are trying to inhale, exhale, or both? What is the breakdown of OA on inhaling vs exhaling?
RE: OA on Inhale or Exhale? - Doza - 11-01-2017
Always exhale for me.
RE: OA on Inhale or Exhale? - Ghost1958 - 11-02-2017
Can be either or both.
I had them some on inhale some on exhale.
RE: OA on Inhale or Exhale? - fakename1845 - 11-02-2017
I find that rather interesting. I had thought it could only happen on inhalation. How can you tell on Sleepyhead? Or can you?
RE: OA on Inhale or Exhale? - Sleeprider - 11-02-2017
Most obstruction I have seen is following exhale, the person's airway obstructs in the transition and no inhale occurs. If you are following along in your sleepyhead chart, the typical view is of an exhale below the zero-flow line with diminishing flow approaching zero, then the flow remains at zero for more than 10 seconds. An OA is often preceded by a flow limitation and followed by higher than usual inhalation flow sometimes a full arousal.
A less common apnea can occur following an inhale, with the flow rate descending to the zero line, then zero flow for at least 10 seconds. This is breath-holding with a closed airway. Pretty unusual that the airway is truly obstructed with a lungful of air, but here on Apneaboard, we've seen it, and we covered it, October 23rd, 2017....We know a thing or two, because we've seen a thing or two.
RE: OA on Inhale or Exhale? - HalfAsleep - 11-02-2017
I get apneas labeled as OA's on both inhale and exhale. If they are correctly labeled (frequently there's no flow limit), I figure my throat flap is like one of those kitchen doors that swings both ways. Coming and going makes no diff: it's flappy either way.
RE: OA on Inhale or Exhale? - ajack - 11-02-2017
I found that I noticed the exhale obstructions as I was going to sleep on my back, something before cpap wasn't done and I subconsciously got a sleeping position where I didn't choke as much and stayed there all night.
to resolve this, I kept raising the min pressure, to apply more air splint till it stopped and I didn't arouse from the obstruction falling asleep. Over time I have been able to reduce my min pressure, I can only guess why..less inflammation caused by the action?
RE: OA on Inhale or Exhale? - Ghost1958 - 11-02-2017
On my back is when I get the exhale OAs, usually using a ffm.
Uping the min pressure so there is enough back pressure to exhale against stops them.
RE: OA on Inhale or Exhale? - Sleep2Snore - 11-02-2017
Before treatment I would breathe out, with a harsh sort of rattle type snore, then try to breathe in and nothing would happen, not that I noticed that often. Sometimes just as I was falling asleep, it would happen and I would notice it. It was my partner that noticed I would breath out then try to breathe in, but nothing for several seconds, then I would almost wake up, grunt and blow out some air I still had left, gasp for breath, then start over again. My throat might start to close at the end of exhale, but as soon as I started to breath, my throat would collapse and close, so on inhale.
RE: OA on Inhale or Exhale? - fakename1845 - 11-03-2017
Thanks. That's good information. Can you look at this snippet from my data and explain what I'm looking at a little more, please?
https://imgur.com/yCbT1TS