Unusual Duration of Central Events

[upsman]

Two nights ago, I had a fitful night and my AHI spiked to a level I've never even been close to in the 10+ years of treatment. The following night was much better but still higher than normal. Last night it's finally down to a reasonable level but still higher than my normal of <1.

The thing I was more concerned with from last night's charts was the fact that I had two sets of tight clusters of central events. Oscar's capture shows 1 central event of 24 seconds or longer in each cluster. Now, most people can probably hold their breath for that long, but I have COPD, emphysema, and asthma, so even when I'm awake I find it hard to believe I could do that. 

I know SarcasticDave94 has similar breathing issues and I wonder if this is a regular occurrence for him or anyone else with breathing issues. It's not for me, so is it possible my COPD is worsening? 
It just seems highly unusual for my treatment. 

           

[upsman]

Maybe an expanded screenshot of last night's graphs would shed more light. 


   

[staceyburke]

I know the machine tries to determine the difference between centrals and obstructive apnea but they are sometimes wrong. BECAUSE thes are grouped in several clusters I think they could be positional apnea. Where you sleep in a position where you cut off your own airway.

Have you just started using a new higher pillow? Sleeping on your back or anything that allows your chin to drop down to your Sternum? (Chin tucking)

[upsman]

Agreed, staceyburke. I'm quite certain it was positional or chin tucking with the clusters. Nothing was any different, sleep-wise, for any of the 3 nights. 

It's just the exceptionally long duration of the events that has me worried. This is very unusual for me. If this had just been one night, I would say...meh .
I'm supine almost 90% of the time every night. I always have slept this way but have never had an issue like this before.

[staceyburke]

Have you ever thought about a collar? There a link to them in my signature.

I hope it was an occasional event and nothing more.

[upsman]

Yeah....I may consider a collar if it continues as a trend.
I hate the idea of doing that, but we have to do what we have to do.