understanding data on my elite 2

[cpap456]

my ahi was 57 per hr ...severe sleep apnea ...i have lost 40 lbs 231 down to 189 now since oct 2008
i need to get my ahi down below 15 per hr or my employer wont let me back to work
money is tight and i am trying to phacilitate my return to work faster
i am new to sleep apnea ...just diagnosed ...2 sleep studys and 4 dr visits over a 6 month period
april 6 2009 my 1st night wth my new machine was rough up and down ...fixing and ajusting mask ...toylet breaks ajusting the hose floping from side to side ...bed midnight up 7 am ..

I am trying to get up to speed on reading and understanding data
my readings from last night were ..just off the compliancy data on the machine for day
ahi 57.6
ai 37.6
hi 19.9
is that reading per hour or per day or session ..{need it to read 15 per hr }
in other words do i need to divide this by the # of hours i slept say 7 hrs ???
thanks ..any help would be appreciated

machine .resmed s8 elite 2 with epr on #1
.......... 4ie humidifier
mask... flexfit 407 fisher/paykel

[cpapsue]

I also have a Resmed S8 Elite II, EPR on 3, pressure set to 10.0. My mask is a Swift LT.

The numbers on my machine are always in the single digits.

Leak always >1.0
HI usually 3.0 or 4.0
AI never more than <1.0
AHI under 5.0 consistently

Is the correct machine listed? The numbers you show seem very high for a Resmed. Somebody else have a thought?

[cpap456]

i"ll trade you #"s ok ...yours seem great ...

[cpap456]

ps

[Dpursi]

I also have a Resmed Elite S8 II and those numbers on the LCD display are per Hour. Sounds like your number needs to be below 15 and you have some way to go. I noticed with mine that my numbers were much better using a Nasal mask than with a Nasal pillow even though the leak rate was much better with the pillow. I also noted that my AI's were much lower when I was sleeping on my side. Since you have a need to reach a much better number quick you may want to use a full face mask like the Quatro and force yourself to sleep on your side. It may be worth a try. I understand sowing a Tennis Ball into the back of your PJs works for most.

[riverdreamer]

If you were taking your mask on and off, or it was leaking a lot, or your were shifting it around, those numbers may not be accurate. The numbers are events per hour. I'm not sure why they are only looking to get your numbers down to 15, usually they look for <5.

What pressure are you titrated for? Do you know what pressure your machine is set to? Once you get leaks handled, then you will be able to get a picture of whether your pressure is adequate to control your apnea. If you can't get your mask to work, you may need to try a different one. There is lots of info on this board about adapting a mask to work for you. Try looking at the top of the page, and click on the yellow lightbulb called "Our Wisdom." Lots of good ideas there.

[cpap456]

my pressure is set at 9
i have a nasal mask and found myself waking with a dry mouth and my mouth was open ...causing air to leak out
anyway ...will try again tonight ....i have pleanty of time ...
thanks all dan

[alnhwrd]

Dan,

Your numbers with cpap are as bad as without it. If your mouth is coming open then all of the air that is supposed to be keeping your airway open is just pouring out into the room and doing you no good. You need to either get a full face mask, or a chin strap and tape your mouth closed at night. I expect that you will see quite a difference when you do.

Can you add your equipment to your profile along with your pressure in the comment field please? It would be helpful in giving further comments.

[cpap456]

today"s data
pressure ...says no data
leak .80l/s
ahi 22
ai 13
hi 9
hm...why no pressure reading? ....and leak is too high ?
in the settings it says ultra ...i am using a fisher/paykel.flexfit 407 nasal mask...no setting for that brand ???
i set my leak alarm to on ..so i can see what is causing my leak ...head position ...mouth open ..seal on mask
any other thoughts ?
dan

[Slinky]

To get an accurate reported Leak rate, since you are using a non-Resmed mask, your Mask Selection should be set to Standard.

At the Standard Mask Selection your Resmed will automatically deduct 0.4 L/s or 24 L/M from the reported Leak rate. You then need to get out your F&P HC 407 mask literature and look at the graph table for the allowed vent rate at your set pressure and compare that to the reported Leak rate, keeping in mind that 24 L/M has already been deducted from that reported to determine your TRUE Leak rate.

These devices have an internal, 24 hour, noon to noon clock. You must check your night's data before noon as at noon that night's data is rolled over into the total averages and no nightly data is available until you sleep w/it again after noon.

[cpap456]

[quote="Slinky"]To get an accurate reported Leak rate, since you are using a non-Resmed mask, your Mask Selection should be set to Standard.

At the Standard Mask Selection your Resmed will automatically deduct 0.4 L/s or 24 L/M from the reported Leak rate. You then need to get out your F&P HC 407 mask literature and look at the graph table for the allowed vent rate at your set pressure and compare that to the reported Leak rate, keeping in mind that 24 L/M has already been deducted from that reported to determine your TRUE Leak rate.
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i am a little confused about what you said above ...can you claerify
thanks
ps some info i found out today on the net

alright with some investigating i found out
my.... f/p flexifit 407 ...at 9 cmh2o is 34l/m
resmed set at ultra .......at 9 cmh2o is 32l/m
resmed set at standard...at 9 cmh2o is 24l/m
so it seems close ....how can i adjust for my true leak rate

[Slinky]

Okay,

1] the allowed vent rate for the HC 407 at 9 cm of pressure is 34 L/M
2] Resmed subtracts 24 L/M for the Standard Mask Selection
3] So you must add 10 L/M to the reported Leak rate.

[cpap456]

so if my leak rate the last 2 nights have been .80 and .78 l/s
what does that mean

[billbolton]

so if my leak rate the last 2 nights have been .80 and .78 l/s
what does that mean

You leak rate is WAY too high. 0.10 or lower is generally good.

Cheers,

Bill

[cpap456]

Okay,

1] the allowed vent rate for the HC 407 at 9 cm of pressure is 34 L/M
2] Resmed subtracts 24 L/M for the Standard Mask Selection
3] So you must add 10 L/M to the reported Leak rate.

so my machine reads l/second ...so help me ...