(04-21-2015, 12:17 PM)old82 Wrote: My ResMed AirSense 10 Autoset CPAP machine allows me to see a detailed depiction of my nightly events using its SD card and the ResScan software program. This detailed report breaks down each apnea event into obstructive and Central apnea by color code showing the duration time in seconds of each one.

It shows that my apneas are predominately the central type by a wide margin. A typical night for example would show I had 50 to 80 centrals to 5 to 10 obstructives. My sleep doctor claims I cannot know this and I'm being misled because this CPAP machine does not have the capability of determining the difference between central and obstructive apneas even though I told her I'm using the products own ResScan software program to break this down.

She is board certified in sleep medicine...who am I to believe...her or ResScan? It's important because I'm using this information to justify a change in my therapy and possibly my machine.

(04-21-2015, 12:59 PM)PaulaO2 Wrote: The ResMed machines can determine what is called a "clear airway event". They are so confident the machine is detecting a central event that I believe they are now calling them that in documentation and in the software. A clear airway event is where the machine determines you aren't breathing (based on air flow). It sends air pulses to you and based on the "echo" of it, can tell if there is a blockage or not. No blockage means their airway is "clear" so it is a central event. If it lasts longer than 10 seconds, it is logged. If it is blocked, then your Autoset reacts accordingly.

For your sleep doc to not know this is not unusual. Most of them focus mostly on diagnosis. Treatment means "here is a machine" and that's it. If they did care more, they would be asking for more than "how many hours a night are you using it?"

How long have you been using your machine? If it is not very long, then you are experiencing "CPAP induced central events". These typically reduce in number the longer you use it. The common treatment is to lower the pressure for a while then increase it again. If you had a titration sleep study, this was probably noted during it.

During mine, it was determined a treatment pressure of 10 eliminated nearly all of my OA but my CI (central index) was some high number. 7 and it was 36. My initial pressure was set to 8 for 3 months then increased to 10. I have no idea what my data was since I had a brick of a machine and this was back with the S7s models.

(04-21-2015, 01:44 PM)archangle Wrote:

(04-21-2015, 12:17 PM)old82 Wrote: My ResMed AirSense 10 Autoset CPAP machine allows me to see a detailed depiction of my nightly events using its SD card and the ResScan software program. This detailed report breaks down each apnea event into obstructive and Central apnea by color code showing the duration time in seconds of each one.

It shows that my apneas are predominately the central type by a wide margin. A typical night for example would show I had 50 to 80 centrals to 5 to 10 obstructives. My sleep doctor claims I cannot know this and I'm being misled because this CPAP machine does not have the capability of determining the difference between central and obstructive apneas even though I told her I'm using the products own ResScan software program to break this down.

She is board certified in sleep medicine...who am I to believe...her or ResScan? It's important because I'm using this information to justify a change in my therapy and possibly my machine.

$leep doctor$ love in-lab $leep te$t$ and have a financial incentive to do things with $leep te$t$ instead of using the data generated of the actual therapy generated for free every night in the patient's home.

She may be drinking the koolaid and believing her own prejudice, though. The medical mafia is pretty good at convincing themselves of their own infallibility and mi$conception$.

An in-lab sleep test does have some advantages. You don't count apneas of any kind unless you're asleep. An in lab sleep test has an EEG, so it knows if you're awake or "aroused" (partly awake). The CPAP machine can't tell that and will count "waking" apneas. An in-lab test uses a chest effort belt to tell if your body is trying to breathe. The CPAP machine has to try and tell if your airway is open by sending pulses of air through a 6 foot hose and detect changes in airflow. This is somewhat difficult, but I think the machine can do it. Another problem is that you can have a closed airway when you have a central. In this case, your machine will report a central as an obstructive.

However, there is a great deal of value in real, in home, free measurement of your own treatment data. There is a lot of the data that IS pretty indisputable. If you look at the data, you can get a pretty good indication of what's real, whats "wrong," and what's questionable. Simply ignoring the data is inexcusable.

The data recorded by the CPAP machines is pretty good, pretty objective, and is very useful. There are limitations to the data recorded in an in-lab sleep test, too.

If you're competent, you evaluate all the evidence including CPAP machine data, and use it to the best benefit of the patient.

Upload your own SD card data if you're comfortable with that.

(04-21-2015, 03:17 PM)PaulaO2 Wrote: t. But if the CA events are happening all during the night, then chances are you either have mixed apnea (both central and obstructive apnea) or you have complex apnea (obstructive apnea with central apnea being brought on by the machine and it isn't going away). They used to say the CPAP did not induce central apnea (but we users knew it did) but now it seems they even have a name for it. Either way, the machine you have isn't what you need.
s.

(04-21-2015, 03:50 PM)old82 Wrote: So I'm guessing I have complex apnea. Based on your experience what type of machine is best for that? And thanks for the HIPPA advice...she has already told me she doesn't have the time to teach me about the questions I have. Some day I may have to use the HIPPA advice.
OLD82

(04-21-2015, 04:06 PM)retired_guy Wrote: [quote='old82' pid='109972' dateline='1429649414']



All I'm seeing right now is you've got a top of the line machine that has been dummied down to just a bit better than brick mode. Some will protest that fixed pressure of 7 isn't really dummied down, but without any documentation, or willingness of your doc to be forthcoming as to your actual needs/results, -------- it's dummied down.