ResScan and S9 VPAP Adapt

[MAXDRI]

Thanks to people on this Forum, I was able to download the data on the card from my S9 VPAP Adapt into ResScan. It gave me the data in Summary Graphs and said that with this machine, when it is in the ASV mode, no Detailed Graphs are available. I only downloaded it once, but is this correct?

[Pugsy]

The default setting for ResScan is to download only the summary data. Did you change this at the download prompt?
Have you watched the video tutorial for ResScan?
http://montfordhouse.com/cpap/resscan_tutorial/

I have never heard of it only recording summary data in ASV mode.

You could give SleepyHead a try and see what it shows. I am thinking it should show everything and that you missed a step in ResScan when the download screen was up and didn't tell it to also include all the detailed data.
Try the download again and stop at the download box and look carefully at the choices.

[Xney]

FYI you need to have your SD card IN the machine while you're using it to get detailed data. (As I found out to my chagrin )

As pugsy pointed out, you also need to tell resscan to import the detailed data.

[avi123]

Thanks to people on this Forum, I was able to download the data on the card from my S9 VPAP Adapt into ResScan. It gave me the data in Summary Graphs and said that with this machine, when it is in the ASV mode, no Detailed Graphs are available. I only downloaded it once, but is this correct?

My thoughts on it: The S9 VPAP Adapt is meant to take care of central apnea events in central apnea syndromes (i.e. "treat them") . If it allowed you to make graphs of the remaining CAs then it could jeopardize the "name" and reliabilty of this machine. You could ask why do you see CAs in the graph if there should not be any? And Resmed, probably, has enough law suits against it, without this. On the other hand, Resmed allows downloading in ResScan of detailed data from regular XPAPs by assuming that you and your Doc would not question, too much, if the data is correct or not.

Similarly, would you expect GM or Ford to sell you a test equipment to check if the miles per gallon are truly as the company advertises for your car?

Let's see what John Fisher says on it. See below.

[avi123]

I received this reply from John Fisher on the Sleep Apnea Support website
Re: ResMed S9 VPAP Adapt SV users.... i need advice

by JohnBFisher » Mon Oct 01, 2012 8:03 pm

avi123, the ResScan software DOES flag apneas. The Resmed ASV (both older S7 and newer S9 versions) does not differentiate between the type of apnea when it flags it. However, it's normally pretty easy to guess based on the pattern of breathing before and after the event.

It can be very difficult to adjust to ASV therapy. As Maxdri notes, one way is to limit the upper end high pressure. While this causes less leaking it also means the machine is not as well able to sustain breathing when you fail to do so. So, as you adjust to the pressure, consider upping it slowly to the prescribed pressure. Remember, when we stop breathing we need the machine to push enough air into us to sustain respiration to help break the undershoot / overshoot cycle that triggers the central sleep apneas.
**************************************************
But John's reply does not explain if it's possible to see flagging of Central Apnea events in the regular ResScan 3.16 or 4.1 graph of Events. If it does dowload from the S9 VPAP Adapt, then I would expect to see the data of CAIs and CAs in similar Stats and Graph as these:








p.s. John, my interest in this is for my reference only. I don't have CSAS.

[MAXDRI]

Thank you for all the suggestions. I tried again, keeping the card in the reader. I asked for detailed data. ResScan gave me the Statistics and the Summary Graphs, along with the message "No detailed data available." So I guess if a person uses the S9 VPAP Adapt, he will have to be satisfied with the Summary Graph. And I think I am content with that. I finally found a mask that works (with a little help from paper tape) and for the past week my morning report says No AHI and No AI. And leaks ranging from 7-20. Yes, it did take me a few weeks to adjust to this machine. It seems to keep me breathing and sometimes sleeping 6 or 7 hours. So I am relatively happy..

[Xney]

Eh? My VPAP Adapt records detailed data every night.

[JohnBFisher]

First, you have to tell ResScan to load the detailed data. The default is only the summary data. And sorry, I don't remember how, but if you scan the forum you will find information on how to adjust it.

Second, to the best of my knowledge the Resmed unit does NOT differentiate between central and obstructive sleep apneas. It only tells you that it is an apnea. As I noted, you can generally infer (guess) if it is central or obstructive by the breathing around the time of the apnea. But it's just that .. a guess.

I hope that is clearer.

[avi123]

The following are ASV flows but not in ResScan:




ResScan usually indicates CA or OA like this:


Probably CSR on S9 Elite:




CSR on S9 in ResScan:

[Pugsy]

First, you have to tell ResScan to load the detailed data. The default is only the summary data. And sorry, I don't remember how,

John to tell the machine to gather detailed data Sleep Quality has to be turned on. That may be what you were thinking of.
The default for ResMed machines is "Usage". I thought about this but since MaxDri is reporting leak numbers and 0 AHI then it sounds like the machine already has Sleep Quality set to ON or there would be no on screen data beyond hours of use.

To MaxDri
If the download has specifically been told to obtain all the detailed data as well as usage data and it still doesn't so any data then I am at a loss as to why. There should be all the data that we normally see the graphs for.
That said, a couple of weeks ago I had 3 days in a row where I didn't get any detailed data on my ResScan report. When I checked it with SleepyHead the detailed data was there. On the 4th day the previous 3 days of missing detailed data suddenly appeared and I have no idea why.

SleepyHead should work with the S9 VPAP Adapt. I would give SleepyHead a try and see if it shows anything.

Here are a couple of images. If these steps have for sure been followed and still no detailed data then all I know to do is keep trying and maybe they will show up later like my missing detailed data showed up. I would still try SleepyHead to see if I could see the detailed data in SH.

[JohnBFisher]

AVI123, thank you .. that's a good example of inference of a central apnea.

Pugsy, yes. That's a great explanation of what I was trying to remember. (I do not have ResScan up an running at the moment).

And I need to retract what I said earlier. It appears the S9 ASV unit does indeed record central apneas. At least that's what I infer from the following data management guide from Resmed:

http://www.resmed.com/us/assets/documen ... er_eng.pdf

[Xney]

It does record centrals when it notices an "apnea". It does a quick pressure pulse to determine whether it's obstructive or not. If not, it's a central.

I've felt the pressure pulse a few times!

[Henry Jr]

For the OP - I have always gotten detailed data with my S9Adapt. I lean toward the "Detail" check-box being turned off on the download also.

On the ResScan CA subject - I stumped my Doctor's Lab supervisor (an RSPGT according to his card) Monday during a visit to the office.
I showed him my last few ResScan_v3.16 reports (I generate a report every Monday with a running 30Day summary and the previous week's detail data) and asked him why I never saw any events identified as "CA" (Clear Airway). I have been using the machine since January'12 and began downloading/tracking the data after discovering (via this site) that I could in April.
I mentioned that the clinicians manual for ResScan has examples showing "CA" in the Events detail graph.
He puzzled over the reports for a few minutes; loooked at the detail data he had just downloaded from my SD card and finally (instead of BSing me) said he didn't know. Side note: I appreciate when an expert admits he doesn't know rather than trying to blow me off with a fabricated guess. He called a ResMed rep and was told that when the S9 VPAP Adapt is operating in ASV mode it will never identify a CA because the ASV algorithm should always adjust/increase pressure to prevent a Clear Airway event from ever happening.

[avi123]

So far no one has shown, on this discussion board, ResScan graphs from Autoset CS, Autoset CS2, VPAP Adapt, and VPAP AdaptSV, of CAs in the Events graph. Not even DreamDiver himself who has either CompSAS (called also CPAP-emergent Central Sleep Apnea), or CSAS. So MAXDRI is still left unanswered.

[Uncle_Bob]

What version of resScan are you using?
Support for the VPAP machine in the S9 series is not available in earlier versions.
Currently resmed recommends resScan version 4.2 for your machine.
I would send you a link but i don't have it

A good way to see if your machine is supported in the version you are using

1 - Start resScan
2 -Click on Open Patient
3- In the drop down box for Patient group select examples.

If you see an entry in the list for your machine then it should be supported.

~UB