Resmed data

General Discussion on any topic relating to CPAP and/or Sleep Apnea.
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lebedjev
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Resmed data

Post by lebedjev » Mon May 19, 2008 5:28 am

Hi.

I'm new to this forum and have used my CPAP since mid february 2008.
I'v got over 60 apneas per hour acc to my first sleep study.
Recently I have learned how to read data from the display.
A typical good night looks like this

Date Pressure Leak AHI AI HI Sleep hours
5/19/2008 11.6 0.12 11.7 3.2 8.5 7.24

Please make a comment.

75 apneas per hour in first sleep study february 2008

track
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Post by track » Mon May 19, 2008 5:58 am

You need to cut the AHI in half to be classified as normal...5 or under.


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lebedjev
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Post by lebedjev » Mon May 19, 2008 6:08 am

Thanks.

Any idea how to reduce the AHI ?
How about the ratio AI/HI ? The AI is more dangorous or?

75 apneas per hour in first sleep study february 2008

bearcatx16
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Post by bearcatx16 » Mon May 19, 2008 6:20 am

Greetings lebedjev:

I am no Doctor or an expert on this subject, just learning like everyone one else and these are just my thoughts on what you have given. I'm sure the experts will straighten me out.

I would guess that your CPAP pressure is at or about 11cm h20, the 11.6 is yiour 95% pressure meaning you are at or below 11.6% 95% of the time or above 11.6 5% of the time (learned that one from slinky). Don't know what your mask is, but with the info. provided your leak rate appears to be ok. As "track" said you need to get you AHI below 5, I would start by raising the starting pressure .2cm (with you Dr. consent) and stay there for a week, seeing if your results cme down. If the AHI is not at 5 or below continue to increase the pressure by .2 (again, with your Dr's consent), a week at a time, until your AHI is below 5.

Again I am not a doctor or cpap specialist, this is just my thought. If the above is out of line, please, someone correct me, I am trying to learn and understand what should be done in a case like this.

Good luck,

Fred

In the game of Life there is no two minute warning, just sudden death then judgment............Paraphrase Heb. 9:27 NIV
Not sure you believe in God.....just don't die.

alnhwrd
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Post by alnhwrd » Mon May 19, 2008 6:45 am

Welcome to the forum! A couple of questions for you. At what pressure were you titrated at in your sleep study? This would be the pressure at which your obstructive apneas were reduced to the lowest level. Also, was there any sign of mouth breathing or leaking? If this is a "good" night, what does a bad night look like? Can you provide the monthly average?

It's hard to tell a lot from one night's worth of data, but bearcat's suggestion would be something to try. I would also try taping your mouth closed for a few nights first to see if that improved your numbers. It is easy to open your mouth and lose all that good air out into the room.

AI and leak rate are the most important numbers, IMHO. Many have observed that the Resmeds tend to register more HI's than their Respironics counterparts. But I feel my best when both numbers are lowest. Total AHI under five is the goal. Best of luck!


track
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Post by track » Mon May 19, 2008 1:12 pm

I don't know how much freedom to experiment you have with your doctor but I started on my own so I had no constraints. The first month or so I set hte machine on apap 4-14 and got numbers similar to yours. ...discovered I mouth breathed so I went to full face mask. I then changed to 6-12 and 8-12 and 10-14..yada yada yada...looking for the magic formula. I never could get rid of the clusters that cropped up on occassion when I got on my back so I tried sleeping on my side. Now days I put a ball between my shirt so I can't sleep on my back. I run on cpap at 7.5....my numbers are typically AHI 5 and AI .8. I am happy with that as it gives me minimum stomach air issues and I am not getting lots of long apneas like I was on my back.


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lebedjev
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Post by lebedjev » Mon May 19, 2008 10:54 pm

Hello again.

My average data for the last month is

Pressure Leak AHI AI HI
11.6 0.1 12.4 4.1 8.6

I dont think I can find the menues for adjusting the pressure on the CPAP, but I can see that the start pressure is 5 and I feel that it is a bit low. I have to wait some minutes for the CPAP to come up to a higher level in order to have more comfortable breathing. So if it is a way to start at a higher level I think that would be great. My CPAP is, if remember correct, set to a pressure of 5 to 15.

Would taping the mouth be a good thing? If I understand the data the leakage is low? But, its true, Im a bit dry in my mouth in the morning.

I'v got humidifyer as well! But I have put that away, because I didn't recognised any improvments when I got it, after have used my CPAP "dry" for the first month. Anyway, now when I have put it away I may feel that my noose is more dry and feels tighter. So maybe I should starting using it again?

Thanks for your support

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Last edited by lebedjev on Tue May 20, 2008 12:32 am, edited 1 time in total.
75 apneas per hour in first sleep study february 2008

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Post by Guest » Tue May 20, 2008 12:16 am

Your profile says you have the Elite, the straight CPAP, but under comments you have the Resmed Spirit listed. Since you state you have a range of numbers, I am guessing that you have the Spirit, which is called the Vantage here, and is an Autopap.

5 is a pretty low starting pressure, and I would guess (emphasis on the guess part, I am not a doctor) that this may be why you are still having apneas. If it were me, I would change the lower number, bring it up closer to your titrated pressure, the pressure from your sleep study that eliminated most or all of your apneas. Lots of the Apap users here like to keep a narrow range and say that it gives them better therapy. Some say too that the broad changes in pressure can cause them to wake up. You could also try switching to straight CPAP mode, at either your titrated pressure or the pressure you have been at 90%, which looks like about 11.6

I am a strong advocate of mouth taping. Its cheap, doesn't hurt anything and can be a quick fix to lowering your AHI, which is what we all want to see.

Check for a PM from me


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Snoredog
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Post by Snoredog » Tue May 20, 2008 3:31 am

only 2 that mean anything are AI and leak. ADD up AI and HI and you have AHI.

reduce AI first then continue to increase until HI drops to 5 or lower. You should be
able to get AI down below 1 (0.8, 0.6 etc.), then HI will begin to fall.

someday science will catch up to what I'm saying...