Help with data

General Discussion on any topic relating to CPAP and/or Sleep Apnea.
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Mebake
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Help with data

Post by Mebake » Wed Apr 22, 2009 10:20 am

Please help me understand my data
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Looking for some insight to the above data. It seems to me that the AHI are lowest when the leak rates are highest. I understand this is a small sampling of data but I would appreciate any feedback.

Thank you

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feeling_better
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Re: Help with data

Post by feeling_better » Wed Apr 22, 2009 11:36 am

Mebake wrote:Please help me understand my data
Looking for some insight to the above data. It seems to me that the AHI are lowest when the leak rates are highest. I understand this is a small sampling of data but I would appreciate any feedback.Thank you
Mebake, what insights are you looking for? Interpreting the data? Or your question solely about the AHI vs leaks above? You are right, too little data to draw that conclusion, the normal variation in AHI could be easily higher than what you are getting.
Resmed S9 Elite cpap mode, H5i Humidifier, Swift FX Bella L nasal pillows

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Mebake
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Re: Help with data

Post by Mebake » Wed Apr 22, 2009 11:59 am

Should I be concerned about the leak rate or more about the AHI. I am really not sure what I am looking for. I feel the leaks were coming from my mouth being open. Is this possible? This the fist time I have had the ability to look at my data. Just looking for some feedback.

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feeling_better
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Re: Help with data

Post by feeling_better » Wed Apr 22, 2009 12:24 pm

Mebake wrote:Should I be concerned about the leak rate or more about the AHI. I am really not sure what I am looking for. I feel the leaks were coming from my mouth being open. Is this possible? This the fist time I have had the ability to look at my data. Just looking for some feedback.
Since you are looking for general knowledge, may I suggest this search this forum for words like leaks, EncorePro data, ... and start reading about 50 threads. Then you might have specific questions or you would be answering others' questions Good luck on your knowledge quest.
Resmed S9 Elite cpap mode, H5i Humidifier, Swift FX Bella L nasal pillows

alnhwrd
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Re: Help with data

Post by alnhwrd » Wed Apr 22, 2009 12:36 pm

The data for every night indicates that you are under 5.0 AHI, which by definition means that you are treating it effectively. If you are sleeping enough and feeling good too, then IMHO you are doing great and don't need to make any changes. Keep up the good work!

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Wulfman
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Re: Help with data

Post by Wulfman » Wed Apr 22, 2009 12:45 pm

alnhwrd wrote:The data for every night indicates that you are under 5.0 AHI, which by definition means that you are treating it effectively. If you are sleeping enough and feeling good too, then IMHO you are doing great and don't need to make any changes. Keep up the good work!
Ditto.

Leak lines aren't going to be "perfect" every night (lower numbers are always better) and your AHI is pretty good.
So, keep on PAPin'. In the sum total of things, it's how you feel that counts.

Den
(5) REMstar Autos w/C-Flex & (6) REMstar Pro 2 CPAPs w/C-Flex - Pressure Setting = 14 cm.
"Passover" Humidification - ResMed Ultra Mirage FF - Encore Pro w/Card Reader & MyEncore software - Chiroflow pillow
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Hawthorne
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Re: Help with data

Post by Hawthorne » Wed Apr 22, 2009 2:52 pm

Your leak rate does go higher as your AHI has gone down each of the 5 nights.

Your AHI however, is below 3 on most of these nights (except for Apr 11 when it was 3.1). That .1 is really of no consequence so you are below about 3 with your AHI for 5 nights. This is good.

You have your machine set at 14 cm and are using the Swift LT mask. The mask guide suggests a vent rate of 36 for a pressure of 14. You are within 4 of that every night for the 5 nights you posted. Once you were right on 36 with an AHI of 2.5. Once you were below the 36 vent rate with an AHI of 3.1. The other 3 nights you were between 38 and 40 with your vent rate and your AHI was in around 2 for those nights. (2.2, 1.9, 1.7).

You may be mouth breathing. Can anyone check that out for you?

The other thing I have found with the Swift LT is that if I wash the mask pillow every day with a mild dishwashing soap it seals better and my leak rate is better. Your AHI is going down each night so I would work a little on the leak rate, although it is not too bad.

Doing that daily washing in a mild dishwashing soap may help you as it did me with that mask. I don't soak the pillow. I just swish it a few times in the soapy warm water, rinse it with warm water and let it air dry. I was using the Citrus wipes on that mask every day and only washing it once a week and my leak rate was getting worse. Since doing the quick wash daily, the leak rate has improved.

That's just my experience and it may work for you.

Its' worth a try --or maybe you are already doing that. If so, mouth breathing MAY be the culprit.

At any rate, you are doing quite well. Your data is quite good. Are you feeling rested?

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Mebake
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Re: Help with data

Post by Mebake » Thu Apr 30, 2009 11:30 am

Thank you Hawthorn for your insight I have started with a new chinstrap and AHI has been 1.6 for a week now with an average leak rate of 29. I feel pretty good sometimes have trouble getting to sleep but that is just life. Pre CPAP therapy I would wake up with the most incredible headaches probably because my O2 sat was about 65% (norm would be 98-99%). On question could you please tell me were you got the information on the leak rate of the Swift LT. Or if anybody else would have that information

Thank You

Marty

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Hawthorne
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Re: Help with data

Post by Hawthorne » Thu Apr 30, 2009 12:31 pm

In the mask guide for your SwiftLT there is a graph/chart (Vent Flow Rate (L/min)).

You find your pressure along the bottom of this graph/chart and follow up to see what leak rate your machine will compensate for at your pressure.

When you look at your leak rate, the difference between what it says and the "Vent Flow rate" from the mask guide, is your real leak rate. Being at that number, below that number or just 3 or 4 above that your leak rate is fine for your pressure.

You have a few "peaks" in your leak line but it's not too bad and better some nights than others.

As others have said, this is normal. Some nights will be really good, some nights not so good and some nights bad.

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Wulfman
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Re: Help with data

Post by Wulfman » Thu Apr 30, 2009 12:48 pm

Mebake wrote:Thank you Hawthorn for your insight I have started with a new chinstrap and AHI has been 1.6 for a week now with an average leak rate of 29. I feel pretty good sometimes have trouble getting to sleep but that is just life. Pre CPAP therapy I would wake up with the most incredible headaches probably because my O2 sat was about 65% (norm would be 98-99%). On question could you please tell me were you got the information on the leak rate of the Swift LT. Or if anybody else would have that information

Thank You

Marty
You can download the user guide here:

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

The graph is on Page 8.


Den
(5) REMstar Autos w/C-Flex & (6) REMstar Pro 2 CPAPs w/C-Flex - Pressure Setting = 14 cm.
"Passover" Humidification - ResMed Ultra Mirage FF - Encore Pro w/Card Reader & MyEncore software - Chiroflow pillow
User since 05/14/05

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6PtStar
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Re: Help with data

Post by 6PtStar » Thu Apr 30, 2009 12:59 pm

Noticed your data was obtained from Encoreanywhere. I was under the impression Encoreanywhere only went to the Doctors. How were you able to get a copy. Just curious!

Jerry

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Mebake
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Re: Help with data

Post by Mebake » Fri May 01, 2009 7:48 am

6PtStar wrote:Noticed your data was obtained from Encoreanywhere. I was under the impression Encoreanywhere only went to the Doctors. How were you able to get a copy. Just curious!

Jerry
I got this read out from Apria Healthcare . I currently do not track it my self.

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Mebake
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Re: Help with data

Post by Mebake » Fri May 01, 2009 7:51 am

Wulfman thank you for the link

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help with data

Re: Help with data

Post by help with data » Fri Apr 30, 2010 9:03 pm

If you look closley you will notice you have no time in large leak per day. This means the cpap is compensating for the leaks. You also must take into concideration you mask has a built in leak which is usually 30 to 40 lpm.