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by georgemcbay 28 days ago
Surprisingly the most effective treatment I've found for my own apnea is just wearing an inexpensive soft cervical collar to sleep, but there are lots of different things that can contribute to sleep apnea, so YMMV.

After dealing with unexplained ectopic heartbeats (sometimes PVCs, sometimes PACs) I saw a chain of doctors and that included both getting a sleep study done and seeing a cardiologist.

I was diagnosed with mild apnea (AHI just above 10), but despite the apnea being mild on the AHI scale, my Sp02 blood oxygen percentage was dropping into the low 80%s for extended periods per night down from a normal 95-99% most of the time.

I weigh 180 lbs at 6 foot 2, being overweight was a non-factor in my apnea.

Got a CPAP machine, it helped but even after dialing in my personally optimal pressure settings using the CPAP data with OSCAR my AHI was still kind of all over the place, from under 1 to as much as 6 seemingly randomly per night with no mechanical issues like mask leaks showing up.

Had heard (on reddit /r/CPAP) about some people using soft cervical collars to help with their apnea and I gave it a try and when wearing one my AHI drops down to 0.0 - 0.4 per night. The collar alone helps more consistently in my case than the CPAP machine does.

Basically my sleep apnea is almost entirely due to the fact that when I'm sleeping (even on my side, but worse on my back) I seem to naturally tuck my chin in toward my neck in a way that constricts my upper airway and the collar stops this from happening. This is very much YMMV, there are lots of different causes of apnea.

2 comments

This is such a fascinating comment. I’m 99% confident you discovered that you have a recessed lower jaw in the most roundabout way possible, and may never have connected this last dot in your chain of troubleshooting had I not told you.

I’d urge you to speak with a maxilofacial surgeon, they will confirm it by taking detailed X-rays of your jaw and will be able to identify that your airway is likely impacted by the recession.

Usually the causal chain is such: Recessed jaw due to poor development as a child, likely a pacifier or a stomach sleeper > causes your tongue to not have enough space and puts backward pressure on the airway constricting it > poor sleep.

Usually people with recessed jaws have a variety of other mouth related problems too like mouth breathing, gum recession, abnormal amounts of cavities, bruxism, pain and poor bite. If youre lucky a dentist might have caught some of that and flagged it to you but usually they send you to an ortho who magically discovers that this can all be solved by pulling some teeth as a teenager and giving you braces.

This actually makes the situation much worse and you only find out in your mid to late 20s.

Curious how you tested this - did you do repeated home tests to figure this out?
Most CPAP machines including the one I have record a lot of data that can be analyzed via software like OSCAR:

https://www.sleepfiles.com/OSCAR/

On the machine I have (ResMed AirSense 10) the data gets written to an SD card I can pull out and import into OSCAR to see what the machine detected about my sleep apnea events.

I also (not always, but when I'm testing changes) use a continuous pulse oximeter to test my SpO2 blood oxygen % over the entire night. The data from this can either be combined with the data from the CPAP machine, or used on its own to test things like how I do with the collar and no CPAP machine, since the SpO2 drops are the dangerous thing I'm trying to avoid by eliminating the apnea events.

I use the Wellue SleepU for SpO2 monitoring but there are a lot of similar devices (the kind with finger tip sensors are generally more accurate than the wristwatch based solutions).