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CPAP machines, Sleep Apnea surgery and dental appliances.
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In lab testing at our facility they are very hit and miss. If it is improving your sleep then go for it.
We've run several PSG baseline/then oral appliance to thrust the jaw forward/ then CPAP splits.
When you say your episodes have decreased from 49 to 10, that's great. Is the the Apnea/Hypopnea index, or is that the overall RDI that includes OSA, OSH, and Upper Airway Resistance Syndrome events? UARS are the same as an obstructive hypopnea, but it lacks the 3-4% (varies on lab) desaturation to make it count in the more conservative AHI. With UARS present you still wake up tired since it's still waking you up.
A very well know Sleep lab I work for on and off doesn't even count RDI in their reports. Awakenings (arousals) are just written off as spontaneous arousals, or Leg movements with arousals even though there is a clear building of abdominal and thoracic belts and in the nasal/oral airflow sensor. It's just lacking a big enough desaturation.
Getting back to the question though...
It seems the people with low RDIs and AHIs have pretty good success with these when the tongue falling back, enlarged uvula, or sagging soft palate is causing the obstruction. If the obstruction is from another reason or the diagnosis is moderate to severe, then it's very ineffective.
The best thing to do is get evaluated in an overnight sleep study with a Baseline/Oral Appliance/CPAP. The numbers won't lie. If someone refuses to wear and PAP therapy, then a baseline/oral appliance split is done. Mostly the numbers Sleep Disordered Breathing numbers are very similar in a majority of people.
In my opinion, I think there are a great many undiagnosed people that would fall into the "mild" diagnosis catagory and benefit from an oral appliance. It sounds like you are having a great response from it though if you're sleeping like you haven't in years. Keep it up!!! :^)
Jason
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