Pleae explain my leak chart

[JeffL]

What does the off the scale leakage graft mean?

I'm using nasal pillow, so they never stay in place all night, but I was told that some leakage was ok. Besides, there is still enough air blowing up my nose to keep me from snoring.

[idamtnboy]

You need to work on getting the ones above the red line reduced. How long of a duration are they? Are they by chance the leak that 'might' get recorded before you put the mask on, or the one after you take the mask off.

Also, reboot your machine. The fact that all the latest numbers are identical is suspicious. There have been reports of the S9 getting stuck on one set of numbers once in awhile.

[JeffL]

Interesting. I have it set on auto start and stop, so there is a long blast of air that comes out when I take the mask off. Sometimes it runs longer than other times.

How would I know the duration of the readings that are above the line?

How do I reboot the machine, and what, if any, effect would that have on the stored data?

[Pugsy]

How do I reboot the machine, and what, if any, effect would that have on the stored data?

Unplug it from electric source. Wait a minute or so. Plug it back in to electric source. Works like rebooting the computer..restarts the firmware in the machine.
Hurts nothing to try it and will NOT affect your stored data in any way.

How would I know the duration of the readings that are above the line?

You would need to zoom in on the leak detailed time line and manually compute the duration
though if you are letting the machine run with mask off your face...then that could also explain the large leak shown.

[jweeks]

How would I know the duration of the readings that are above the line?

Jeff,

Your 95th percentile has been around 12, so the stuff above 12 (the light green) happens less than 5% of the time. Since it is a maximum value, it could be as little as a few seconds (just one reading in the data). Since your 95th percentile line hasn't moved much, and your AHI doesn't appear to be adversely affected, this isn't a show-stopper for you. If your Median or 95th line was dramatically higher, then leaks would be your highest priority.

I do notice that you are having other challenges. Your sleep is fragmented, which I can tell from all the gaps in your sleep time. You have higher than desired AHI. You don't have a good sleep habit since you are going to be and waking up at all different times, and you are not getting a full 8 hours of sleep on a consistent basis.

Anything you can do to help on the leaks would help your quality of sleep, so you probably do want to work on that some more. You want to establish a bed time and try very hard to get that consistent 8 hours of sleep. You also want to tighten up the pressure range on your machine so it doesn't have to travel so far to adjust when you have events. Consider pushing the starting pressure up to 10 or 11. Some of this is habit, and some of this is technology.

-john-

[greg-g]

The Median leak value is OK, it only your max and 95 percentile values that are high.
I suspect this is probably due to the air leakage associated with the auto stop feature.
I don't think that many people use the Auto Stop / Start, personally I would turn it of and just start and stop manually.
You would get a better idea of what's happening from the detailed graphs.
I'd also probably increase your maximum pressure a bit and see if there is any reduction in the AHI, the values aren't bad but they could be better. This is normally safe to do, but I don't know anything about your personal details. Personally I'd try 13 or 14 for a start.
I just had a look back through your previous post and cant see any mention of issues that would cause concern.
I'd certainly talk to your doctor about increasing pressures at your next visit, or otherwise change the pressure to 7 - 15 for 1 night and discuss the results at your next visit.

[JeffL]

I did the suggested "reboot" yesterday, and as you can see it looks as if it unstuck the leak chart.
I wonder if the bug is in ResScan or the S9.
Since rebooting unstuck it, I would think it was an S9 problem, but the SleepyHead chart (below the ResScan chart) doesn't show the stuck data.

[Lizistired]

Jeff, what was your prescribed pressure? Without seeing the detailed graphs I wouldn't change anything. If you're apneas are occurring while you are leaking, raising the pressure may just cause you to leak more air. Any leakage is minute ventilation that you are losing. How long are the apneas?
Can you post a screenshot of the ResScan detailed graphs with Pressure, flow Limitation, Minute Ventilation, Flow, Leaks, and Events? Snore too if you do that.
What comfort setting are you using? Ramp? EPR?

EDIT: I don't think ResScan recorded large leaks when I was using SmartStart and took my mask off. I don't use it now, and I turn the machine off before I take the mask off.

[JeffL]

In ResScan, when I click on Detailed Graphs, I get a message that says "No Detailed Data Available", yet when I click on a day in SleepyHead, it shows the detail graphs for the selected day. What am I doing wrong?

Edit: I've been looking through the ResScan manual, and I think I found the problem. The "All Summary data only" radio button must be the default selection. I'll have to download the data again selecting "All Summary data and...". I'll do it tomorrow. It's past my bedtime right now

[greg-g]

As the data is available in SleepyHead, but not in ResScan, then the lack of detail data is from your ResScan settings.
When you start ResScan and go to the Download data box, there is a box called Data, and to the right of this box there is another box called select, open this box and select "All Sumary data and", then select "all" from the drop-down box. Also tick the "Include equivalent ......" box, and the "set these as my default options" box
ResScan will now download all the available detailed data.
You need to study this data and then make a logical decision on what to do, but I still stand by my previous comments, I suspect you need to raise your maximum allowed pressure.

[Lizistired]

Jeff, There is a link to the Resscan tutorial video in my signature. It will save you a lot of time if you watch it before you get into the detailed screens.
Is your machine still set to 5-12cmh2o with the EPR at 2?

[Perrybucsdad]

Try adjusting the scale you have setup for Leak in ResScan. To do that, from the menu select Tools, then Options.

Make sure the Preferences button is depressed, and also that Summary Graph Ranges (below) is depressed. From the dropdown labeled Graph, select Leak. It will display the Lower and Upper limits for this report. It looks like yours are set at 0 - 40. Try increasing the upper to 100 and see if you can see the max.

[JeffL]

I copied all the data (since day one) from my hard drive to an SD card, then downloaded it to ResScan, so now I have all the detail data.
I tightened the head strap on my nasal pillows a little, so I didn't have the leak that I normally have, and I turned off the machine manually instead of using auto stop. Last night's leak was entirely below the red line.

The maximum setting on the leak graph was already set to 120, which seems to be the maximum it accepts.

The machine is set to 5-12cmh2o with the EPR at 2.

Here is the most recent summary chart, and last night's detail report:

[Lizistired]

cool, do you have a detailed graph for last night?
When is your follow up? I know you said you didn't want to mess with the pressures until then. As I mentioned before, your 5 minimum is too low and needs to be bumped up to about 7. You will see that in the detailed graphs.
Have you tried turning off EPR yet?

[JeffL]

I haven't turned off EPR or made any changes since I got the machine besides turning up the temp. and turning off the Ramp.
They pressure was set to automatic.

Here is last night's detail: