First diagnosed moderate OSA 2009---->PR Auto M-Series heated humidifier, PR Original Blue Gel Nasal Mask, PR Premium chin strap. Tried it for a few months and just couldn't get used to the therapy. Stopped CPAP and didn't start again until this year. January 2016: split-night sleep study = AHI 19.5...Supine AHI was 100 something...02 Sat to 73%...Non-supine AHI was practically non-existent at 0.5...so clearly this indicates positional sleep apnea. I did not have REM sleep during the diagnostic portion of the sleep study. The doctor said there could have been more events in non-supine if REM sleep had occurred. After they woke me and started CPAP, I had no apneas or hypopneas and did have REM sleep. Obtained copy of sleep study and prescription for Auto PAP 8 to 15cm H20.
This past Monday, I started PR System One Auto A-Flex heated humidifier. (It doesn't say "60 series" anywhere, but when I uploaded SD card data to Sleepyhead it shows up as a "60 series.") The manual says the machine has "System One resistance control" feature to adjust pressure based on mask type. DME said the machine doesn't have this function, which puzzles me. This forum's host site says this model has that feature. Oh well. I was having some expiratory discomfort so I figured that feature would help some. For now I'm experimenting with A-Flex and humidity. Level 3 A-Flex with level 2 humidity seems adequate for now.
Mask: I was given the PR Wisp Nasal mask and was fitted with a Large cushion. The measuring tool in the Wisp package says I'm "S/M", but the DME just gave me L and XL cushions and took away the S/M cushion. I've read on here about users' experiences with sizing issues with the Wisp. I do get the middle nose red spot. The Large does seem to fit properly, but it would have been nice to at least try the S/M just to compare. I found I needed to adjust the headgear to bring the bottom of the cushion below the nostril openings (which I've seen mentioned here) otherwise the cushion 'rides-up' the nose and partially blocks the lower nostril openings. I had to loosen the top two headgear straps quite a bit to allow the cushion to drop down enough to achieve a proper seal. I am attempting to get the large version of the Wisp headgear because the top straps are loosened to the very ends of the straps - with the large I would expect the top straps to fit better offering more overall headgear balance...hope to find out soon.
Chin strap: DME didn't have any...seriously? I mouth-breathe all night, every night (as far as I know) based on the hallmark symptoms. So, without a chin strap, I had to improvise. I cut out the elastic band on a pair of boxers and tied up my jaw. So I've been using that since Monday. It's been causing head pain and my mouth still ends up opening causing me to wake up with air rushing straight out of my mouth. My AHI, however, has been really good at a little over 1 on average. I'm still learning how to interpret the Sleepyhead data with regard to leakage, etc. So far, the most time I've been over the "leak redline" is 3.6%. Today----> obtained an actual chin strap (the generic PR Deluxe chin strap.) This is the type of strap they used on my at the sleep study. It would be nice to not have to use one, but I haven't been able to prevent the mouth-breathing on my own yet. So: tonight I will use a proper chin strap and see what happens.
Below are the past 3 nights data screenshots from Sleepyhead. For any of you who know much about interpretation of these, feel free to comment if it's of any interest to you. The pie charts are quite different on each day. I used different combinations of A-Flex and humidity for each day so there isn't much consistency in terms of variables. I'm basically trying things and gathering information at this point. Well I've rambled enough for now....thank you for reading my introduction and see you around the forum!






