What do these results mean ???

Uncle_Bob · Post by **Uncle_Bob** » Sat Feb 28, 2009 9:00 am

Got these results from my first night on a noisy Resmed Elite II CPAP

0.48L leak
21.5 AHI
2.2 AI
19.3 HI

It does not mention in the manual what these number actually mean?

My wife had to go and sleep in the guest bedroom due to the noise from the machine,me snoring and gurgling noises

SharkBait · Post by **SharkBait** » Sat Feb 28, 2009 9:06 am

Uncle_Bob wrote:Got these results from my first night on a noisy Resmed Elite II CPAP

0.48L leak
21.5 AHI
2.2 AI
19.3 HI

It does not mention in the manual what these number actually mean?

My wife had to go and sleep in the guest bedroom due to the noise from the machine,me snoring and gurgling noises

The .48L leak is the liters per minute of air that you are leaking out above the vent rate of your mask. You'll find an exhaust port on your mask that is blowing air, the "vent rate" is the rate that air is exiting your mask. You need that exhaust port to clear out the c02 from your exhales...

AI = apnea index. That is the number of apnea events per hour that you averaged. Apneas are considered full airway blockage, an airflow of < 20%.

HI = hypopnea index. That is the number of hypopnea events per hour you averaged. hypopnea is an event where breathing is reduced from 20-50% air flow.

AHI = AI + HI, the number of apnea AND hypopnea events per hour that you averaged.

SharkBait · Post by **SharkBait** » Sat Feb 28, 2009 9:10 am

You want that leak rate as close to 0 as possible. Could you feel any leaks coming from the mask? Was your mouth dry on occasions due to it opening while you were asleep?

I use the swift LT and love it, but I did put some pads along the extensions leading to the nasal pillows so they wouldn't dig into my cheek when I lay on my side. I also use a chin strap to help keep my mouth closed...

Your AI is a little high, but you want to gather information for a few nights to see if it will settle some.

You HI is high as well, once again, things might need to settle.

As long as you are leaking your numbers will be a little suspect.

Georgio · Post by **Georgio** » Sat Feb 28, 2009 9:11 am

Congratulations on getting through your first night, if that was your first night on cpap. Some folks put a styrofoam cooler over their machines. I wear the foam type ear plugs every night and can't hear my machine at all. Your wife could try those. I also have my machine installed on a shelf in my nightstand that is lined with acoustical foam.
You will want your ahi lower, hopefully will resolve by reducing mask leaks. Try ayer gel on your nose. What is your titrated pressure, and what is your machine set at?

Georgio

SharkBait · Post by **SharkBait** » Sat Feb 28, 2009 9:17 am

How many hours of use did you get?

I'm sure your nose might be a little tender this morning. It will toughen up. I use Lansinoh Lanolin to help with that. You can find it near the breast pumps at the drug store (it's for nursing mommies...). About 3/8 inch bead around the nares helps comfort and seal. 10 bucks a 2 oz tube, but a few folks on here and I swear by it.

Make sure you're using the right size pillows. I use medium on this machine, but I use the large size pillows on the headrest. The size DOES make a difference as large leaks pretty badly on the Swift LT's for me...

I think the board consensus is your machine reports HI's a little high; I think people usually cut that number in half.

ozij · Post by **ozij** » Sat Feb 28, 2009 10:14 am

If you've put the Swift LT in the mask menu, then your leak rate is way way way out of bounds. It should be near zero.
Noise is often the result of leaks. And gurgling is not a normal sound either. The Elite II is generally considered an almost silent machine.

Make sure you don't put more water in the humidifier than the maximum allowed - you'll find a max mark somewhere on it.
Make sure there's no leak where the humidifier connects to the machine
Make sure there's no leak where the hose connects to the humidifier
Check you maks, and make sure it put together well - air should only leak out of its vents - you' ll a whoosh when you inhale, but you shouldn't hear much more noise.

At this point, I'd ignore the AHI - I assume your snoring too is a result of the bad leaks - those leaks keep the machine from giving you the treatment you need.
What is your pressure?
O.

JimW203 · Post by **JimW203** » Sat Feb 28, 2009 10:26 am

Uncle_Bob wrote:Got these results from my first night on a noisy Resmed Elite II CPAP
0.48L leak
21.5 AHI
2.2 AI
19.3 HI
...noise from the machine[/color...gurgling noises

I encountered a server error and had to go back and edit.

I, too, use the same machine and recently have been using the same mask. I would like to make the following observations and comments:
1) Leak - may be related to mouth-breathing or ill-fitting pillows (or both). The fit may be the easiest thing to check and/or correct. The first thing to do is check if "Swift" is selected in the mask section of the user menu. If not, correct it. When you first put the mask on with it connected to the hose and machine, press the power button and hold it for a few seconds. The pressure will come on at the full set level; there will be displayed on the LCD a graphical and textual evaluation of fit: Excellent, Very Good, Good, or Adjust Mask. Once you get a VG or better, push the button again to get out of that function then once again to begin the session. If mouth-breathing is an issue, chinstraps or tape are two easily implemented solutions.
2) AHI/AI/HI numbers - their high readings may be directly connected to the leak rate, fixing it may help a lot.
3) Noise - may be directly related to 1) The Swift LT is a remarkably quiet mask when it fits well. The fact that you were snoring leads me to think mouth-breathing may be an issue.
4) Gurgling - This leads me to suspect your hose may have drooped off the side of the bed forming a valley in which condensation collects - hence, the gurgling as air rushes over it. The solution is simple: suspend the hose so as to form an arc from the machine to the mask; the mask should follow your movements freely and should never be tugged at by the hose as it moves. One additional treatment is to run the hose through a cloth sleeve - often referred to as a "hose cozy."

JimW203

hummer3d · Post by **hummer3d** » Sat Feb 28, 2009 10:54 am

noise from the s8 elite II ? The s8 elite II is so mutch more quiet than an Remstar pro with c flex. Is it mask noise your wife hears?

spitintheocean · Post by **spitintheocean** » Sat Feb 28, 2009 12:31 pm

I've just finished my third night on the ResMed Autostart II which I understand is simply the APAP version of your machine. It runs virtually silent on the night stand less than two feet from my head; unless you have a faulty machine, the roaring sound that you and/or your wife hear must be from air leakage around the mask which is the source of sound reported by my wife. She advises that is a far sweeter sound than my previous snoring and sudden gasps for air before the CPAP experience.

For the record, after three nights my figures look like this:

Pressure: 16.2
Leak Rate: .48L/s
AI: 0.9
HI: 6.6
AHI: 7.5

I'm using a full mask which seems to continually leak at the bridge of my nose thus blowing a gale into my right eye and making the only noise of which we are aware. The clinical settings were set by the DME at 10 to 20 and the APAP seems to have settled in at 16.2 which is exactly what the sleep techs prescribed on my prescription. This suggests that the ResMed APAP technology may be pretty accurate in finding the basic necessary pressure level on its own despite the minimal/maximum settings tweaked in the clinicians settings.

Uncle_Bob · Post by **Uncle_Bob** » Sat Feb 28, 2009 6:14 pm

Georgio wrote:Congratulations on getting through your first night, if that was your first night on cpap. Some folks put a styrofoam cooler over their machines. I wear the foam type ear plugs every night and can't hear my machine at all. Your wife could try those. I also have my machine installed on a shelf in my nightstand that is lined with acoustical foam.
You will want your ahi lower, hopefully will resolve by reducing mask leaks. Try ayer gel on your nose. What is your titrated pressure, and what is your machine set at?

Georgio

I thought about putting the machine in my nightstand but then i was worried about restricting airlfow.
I messed up last night because the strap on the top back of my head had come forward. I wonder if i had tried to pull it off? Its about my 7th night on CPAP and the 6 previous night were with a nasal mask I pulled the mask of completely in my sleep.

I was told they titrated me up to 10cm, my AHI was 34 per hour and RDI is 72.6.

I tried uping my pressure to 10 today but felt like my lungs were being inflated like a balloon.

Uncle_Bob · Post by **Uncle_Bob** » Sat Feb 28, 2009 6:21 pm

hummer3d wrote:noise from the s8 elite II ? The s8 elite II is so mutch more quiet than an Remstar pro with c flex. Is it mask noise your wife hears?

I spent an hour with the machine today and the noise is from the machine and the noise is in rhythm with my breathing.
My F&P Sleepstyle 608 was virtually silent.

Uncle_Bob · Post by **Uncle_Bob** » Sat Feb 28, 2009 6:29 pm

thanks for all the replies
one thing i did do wrong was over fill it with water and then turn it on, i got a quick shower but i wonder if that was the cause of my bad night.

jules · Post by **jules** » Sat Feb 28, 2009 6:32 pm

the numbers are BAD

it doesn't matter what mask is in the menu, that leak rate is WAY too high

with high leak then the AHI is usually unreported and your AHI was way too high so .............

regroup and try again

report the mask in the menu and your pressure on the machine too
(10 I assume)

Uncle_Bob · Post by **Uncle_Bob** » Sat Feb 28, 2009 7:35 pm

jules wrote:the numbers are BAD

it doesn't matter what mask is in the menu, that leak rate is WAY too high

with high leak then the AHI is usually unreported and your AHI was way too high so .............

regroup and try again

report the mask in the menu and your pressure on the machine too
(10 I assume)

You are right and i think the issue is with the top strap coming way down and thus the pillows were just hanging off the end of my nose. Like i said before i have a week long history of removing masks in my sleep. At first the doc started me on a pressure of 7cm, then i went up to 8 then 9 but i still seem to be taking or trying to take my mask off. I did a test run today for an hour rolling around, turning my head and no leaks, pillows fit perfectly. I'm the problem, removing my mask and i don't know how to stop it if i'm doing it in my sleep?

I'm hoping for a better night tonight, my 2nd on my new mask. Which is set correctly as Swift in the menu.

Uncle_Bob · Post by **Uncle_Bob** » Sun Mar 01, 2009 9:27 am

Uncle_Bob wrote:Got these results from my first night on a noisy Resmed Elite II CPAP

0.48L leak
21.5 AHI
2.2 AI
19.3 HI

2nd night

0.24L leak
19.1 AHI
AI 4.4
HI 14.7

Still not much improvement after i attempted to address leak issues. I think AI has gotten worse?

What do these results mean ???

What do these results mean ???

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Mask	Humidifier