RE: Sudden rise in AHI
Email that to your sleep doc. Look at the other data more closely (email that also); the data posted only tells us that AHI went up.
07-13-2015, 02:19 PM
(This post was last modified: 07-13-2015, 02:23 PM by kaiasgram.)
RE: Sudden rise in AHI
The posted data also tell us that the higher AHI is due to an increase in central (aka "clear airway") apneas (the purple).
It's a little hard to read the small print in your screenshot but it looks like you've been using your machine since April -- correct?
Your total AHI still looks to be at or under 5.0 most of the time. Any other changes around the time the AHI changed -- like a change in medication or dose?
RE: Sudden rise in AHI
Jeffery, Kaiasgram is absolutely right. The only change is clear apneas being recorded. At this rate, the CA is probably not something to be alarmed about, but it would be nice to find an explanation. Why was your previous machine replaced? Are both machines set up the same?
RE: Sudden rise in AHI
Did any of your other data make a significant change at the same time - especially leaks. I will echo Sleeprider. Why was your other machine replaced? What was its problem?
RE: Sudden rise in AHI
It was the same machine (Resmed S9) I asked for the prior unit to be checked. I would awake at night and the positive airflow was so strong I couldn't breath with it. They found nothing wrong but couldn't test it 6+ hours that would correlate with the interval I complained about so they supplied me with a new one. I really felt stupid when the new one did what I perceived as the same thing to me. It hasn't happened again since. Getting back to the results of the current machine, there was a very noticeable jump in the major leaks. That's why an inspection of the hose and nasal pillow was done. Both in good condition. I put on the mask and started the unit. Moving the hose didn't reveal any splits. I saw in the screen of the unit that it indicated it was meeting the upper and lower pressures with each complete breath. I'm aware of waking 2-3 times a night because I recall looking at the clock (midnight, 2am, 5am) I fall asleep listening to reruns of Art Bell. You don't think Art is planting suggestions in my sub conscience do yo? :-0
RE: Sudden rise in AHI
Hi jeffreyclay,
WELCOME! to the forum.!
Good luck getting your machine problems straightened out, Hang in there for more responses to your post.
trish6hundred
RE: Sudden rise in AHI
You have an S9 VPAP (bilevel) machine so are you sure about your pressure settings? You're saying 13-16 -- is that 13 EPAP and 16 IPAP? If it's a VPAP Auto, then there's more to the story about what your pressure settings actually are. You'd have a Min EPAP pressure setting, a Max IPAP pressure setting and a pressure support (PS) setting.
Do you know how to access the clinical menu of your machine to see all the pressure and pressure support settings? If not, that would be a good first step to investigating what your machine is doing. Given that both machines are doing the same thing it sounds like they're functioning properly and you'd probably feel better if you understood what's actually going on.
Looking more closely at your SleepyHead data might also be useful -- the graphs (Flow Rate, Event Flag, Pressure, Leak, Flow Limit and Snore graphs are particularly helpful) often contain valuable information about what's going on during the night.
This machine was replaced in April under warranty, hence the short data time. I was under the impression that the Total AHI was the entire column for the given day. If so the nights prior to June 12th the AHI was .5-1.7 and after that date were 1.3-5.5, and have remained there. I've written a letter to my Family Dr. for a referral to a sleep clinic. I can zip the files up and email them for their analysis. Thanks for replying.
