[CPAP] Question about Hypopneas

[YYCBrian]

Hello all,
I'm new to CPAP, so forgive me if I ask a dumb question.  A bit about myself first:  I was diagnosed with moderate OSA about 4 years ago with an untreated AHI of 22.  I was not keen to try CPAP at that time, so I used an oral appliance for several years.  Initially the appliance got my AHI down to 7, but subsequently the AHI under treatment rose to 18, despite advancing the oral appliance to as far as my jaw would allow.  So I've decided to give CPAP a try, and so far, it has been OK.  My question has to do with whether Hypopneas are fixed/addressed/ cured by CPAP therapy.  From my reading, I understand that the Hypopneas have nothing to do with airway obstruction, but just a 'failure to breathe'.  So I'm wondering if CPAP can or will fix that?

I am using a nasal pillow (Airfit N30) and a Phillips Respironics Dreamstation.  While I have the trial ongoing, I plan to also try a Resmed Airsense auto, and I may consider other masks or aids as well. 

I am attaching an summary of my results so far.  As you can see the Hypopneas are the greatest remaining abnormality to address, so hence my question - will they get better, or is it outside the ability of CPAP to address?

Thanks for any advice or shared experience.

Brian
   

[slowriter]

My question has to do with whether Hypopneas are fixed/addressed/ cured by CPAP therapy.  From my reading, I understand that the Hypopneas have nothing to do with airway obstruction, but just a 'failure to breathe'. 

No, you're thinking of "central apneas." Hypopneas are just partial obstructions.

[Crimson Nape]

While hypopneas can be central in nature, this seems to be very rare. Here is a Wiki on the subject:
http://www.apneaboard.com/wiki/index.php/Hypopnea

[YYCBrian]

Thank you both for responding.  So if the hypopneas are not central, then CPAP can address them with some fine tuning?  Also, I am attaching a more detailed oscar report from last night on the chance that it helps with the interpretation.
Brian
   

[Gideon]

I'll give you a definite maybe.

EPAP pressure treats Obstructive apnea
Pressure Support, the difference between Exhale and Inhale pressure, is the best treatment for Flow Limits, RERAs, Hypopneas, and Snores, unfortunately, your machine does not provide this even with flex.

Central Apneas are NOT treated by your machine.  CA treatment with your machine is achieved by avoidance.

This leaves Pressure.  I would increase your min pressure to 7 then re-evaluate, looking at additional increases.

That said try the ResMed AirSense 10 AutoSet, did I see Canada?  The AutoSet hor Her since the Ontario Health system classifies this machine as a CPAP, don't tell them they are wrong.

The AutoSet will be a MUCH, MUCH BETTER solution for you.

[YYCBrian]

Excellent Bonjour!  Thank you.  From what you say, I am beginning to think that trialing another brand of machine will be an important component of my learning journey.  While I'm awaiting that, I will work on adjusting the pressure on the machine I have.
Cheers,
Brian