CA events at this rate are not a very big concern, and it's likely we can help you minimize them. For starters, what is the distribution of these through the night. Are they clustered early and late, or do they tend to occur evenly through the night? The earlier question about your EPR setting is also relevant.
thanks for the replies.
I occasionally hit 18cm; 90% pressure is around 14.5. might drop it back 16.
Full time EPR started off at zero; 2nd month on 1cm; 3rd month on 2cm. Hasn't seemed to make any difference over the three months to the clear airway events. I was getting some chest tightness/soreness and read on another thread about increasing the EPR, which has definitely helped.
These events appear in clusters (at any random hour) throughout the night; with about 30% always happening a couple of hours before i wake up.
Just reading your post of AHI of 6.3 average over 86 days.
If you would post a recent screen shot showing the following graphs: events, pressure, Flow rate, and leak rate graph, then it would be easier to see what is going on.
Also include the detailed information to the left of graphs.
If you 90% pressure is 14.5, then I agree you can drop the max number from 18 to 16.
The CA events may lessen in time, but if they are a good portion of you AHI, then you may need to be on a different machine, like an ASV.
Many of my centrals show up during my rem sleep which is normal and not really a central apnea:
1. Brain stem does not tell you to breathe when you really need to
2. The CPAP is washing out your Co2 and so the brain stem does not think you need to breathe.
3. You are dreaming or starting to wake and are moving around some. You ever hold your breathe when doing physical activity? Like picking up something or sitting up? This can register as a central.
My centrals have never changed and my Doctor always said to not worry about them, which of course I did because I was not getting rested. For me it turned out that I had mild COPD on top of sleep apnea, once that was taken care of I sleep like I did in high school
Never give up, never surrender.
01-27-2016, 02:00 PM
(This post was last modified: 01-27-2016, 02:02 PM by WakeUpTime.)
It took almost a year for me to settle and get a handle on sub-5 AHI. Before that, I had almost a year of AHI #'s of 7-10. I blame some of that on me for keeping the pressures higher than they should have been. I'm always trying to push the pressure up to eliminate OSA but the higher levels seem create CSA.
Now, most of my AHI is still a result of CSA -- perhaps 3 of the 5 AHI). That still bugs me and I feel it the next day sometimes. But it's far better than it used to be.
My advice is to really make sure you're not overdoing it with higher-than-needed pressure. It's definitely a case that too-much is a bad thing. I went to a BiPAP machine to help me reduce air. However, if you do make lower pressure changes, give yourself time at each setting (perhaps one week) to know your overall results.
Sleep Apnea has given me a terrible memory. Please forgive me if I've repeated myself.