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AHI question
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GrammaBear Offline

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Posts: 381
Joined: May 2012

Machine: ResMed S9 AutoSet
Mask Type: Nasal pillows
Mask Make & Model: Air Fit P10
Humidifier: ResMed H5i heated humidifier
CPAP Pressure: 12.2 - 16.2
CPAP Software: SleepyHead

Other Comments: Type 1 diabetes - using Tandem T-slim insulin pump, Dexcom G4 CGM

Sex: Female
Location: northern Illinois

Post: #1
AHI question
Since having the S9 cpap machine is a new experience for me in that I can now view the AHI information, I have a question. I've noticed that my AHI numbers can vary between .3 up to 1.4 on any given night. Is the difference between the numbers anything I need to be concerned about? I sometimes switch from the Swift FX for her mask to the Bella Loop system. I am curious if the mask might have an influence on the AHI numbers too?

Thank you for any input.
05-27-2012 07:39 AM
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SuperSleeper Offline

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Posts: 9,967
Joined: Feb 2012

Machine: PR System One REMstar Auto (DS560)
Mask Type: Nasal pillows
Mask Make & Model: ResMed Mirage Swift II
Humidifier: none
CPAP Pressure: 12.5 - 18.5 cmH20 (auto range)
CPAP Software: SleepyHead

Other Comments: Have diabetes Type II

Sex: Male
Location: Illinois, USA

Post: #2
RE: AHI question
Howdy Grammabear...

Those variations are completely normal and that range isn't large at all. Your AHI numbers are FANTASTIC.

I vary between 2.0 - 3.5 constantly and I'm not changing a lot of variables. And yes, with a mask change, that can indeed affect AHI.

Nothing at all to worry about. I wouldn't even be concerned unless your AHI starts rising above 5.0 or so on a consistent basis.

Thumbs-up-2

SuperSleeper
Apnea Board Administrator
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INFORMATION ON APNEA BOARD FORUMS OR ON APNEABOARD.COM SHOULD NOT BE CONSIDERED AS MEDICAL ADVICE. ALWAYS SEEK THE ADVICE OF A PHYSICIAN BEFORE SEEKING TREATMENT FOR MEDICAL CONDITIONS, INCLUDING SLEEP APNEA. INFORMATION POSTED ON THE APNEA BOARD WEB SITE AND FORUMS ARE PERSONAL OPINION ONLY AND NOT NECESSARILY A STATEMENT OF FACT.

05-27-2012 08:39 AM
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PaulaO2 Offline
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Posts: 8,065
Joined: Feb 2012

Machine: S9 Autoset
Mask Type: Full face mask
Mask Make & Model: F&P Simplus
Humidifier: H5i
CPAP Pressure: 14-20
CPAP Software: SleepyHead

Other Comments: Ehlers-Danlos Syndrome, Hypermobility Type; chronic sarcasm

Sex: Undisclosed
Location: western NC, USA

Post: #3
RE: AHI question
They vary because no two nights (and their accompanying days) are the same.

You want that AHI to remain lower than 5.

PaulaO2
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Breathe deeply and count to zen.

INFORMATION ON APNEA BOARD FORUMS OR ON APNEABOARD.COM SHOULD NOT BE CONSIDERED AS MEDICAL ADVICE. ALWAYS SEEK THE ADVICE OF A PHYSICIAN BEFORE SEEKING TREATMENT FOR MEDICAL CONDITIONS, INCLUDING SLEEP APNEA. INFORMATION POSTED ON THE APNEA BOARD WEB SITE AND FORUMS ARE PERSONAL OPINION ONLY AND NOT NECESSARILY A STATEMENT OF FACT.
05-27-2012 09:32 AM
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GrammaBear Offline

Advisory Members

Posts: 381
Joined: May 2012

Machine: ResMed S9 AutoSet
Mask Type: Nasal pillows
Mask Make & Model: Air Fit P10
Humidifier: ResMed H5i heated humidifier
CPAP Pressure: 12.2 - 16.2
CPAP Software: SleepyHead

Other Comments: Type 1 diabetes - using Tandem T-slim insulin pump, Dexcom G4 CGM

Sex: Female
Location: northern Illinois

Post: #4
RE: AHI question
Thanks so much for the information. I never knew what the range for AHI should be, so I learned something today and that makes it a good day Smile
05-27-2012 09:48 AM
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Sleepster Offline
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Posts: 4,993
Joined: Feb 2012

Machine: ResMed AirCurve10 VAuto
Mask Type: Full face mask
Mask Make & Model: F&P Simplus
Humidifier: HumidAir and SlimLine Hose
CPAP Pressure: MaxI 13.6 | MinE 5.2 | PS 4.4
CPAP Software: ResScan SleepyHead

Other Comments: Diagnosed Nov 2011. Conquered aerophagia.

Sex: Male
Location: Houston, Texas

Post: #5
RE: AHI question
(05-27-2012 09:48 AM)GrammaBear Wrote:  Thanks so much for the information. I never knew what the range for AHI should be, so I learned something today and that makes it a good day Smile

5-15 is considered mild, so we like to keep it below 5.

I think 15-25 is moderate? (That's me without CPAP therapy).

Anything above that is severe.

Sleepster
Apnea Board Moderator
www.ApneaBoard.com


INFORMATION ON APNEA BOARD FORUMS OR ON APNEABOARD.COM SHOULD NOT BE CONSIDERED AS MEDICAL ADVICE. ALWAYS SEEK THE ADVICE OF A PHYSICIAN BEFORE SEEKING TREATMENT FOR MEDICAL CONDITIONS, INCLUDING SLEEP APNEA. INFORMATION POSTED ON THE APNEA BOARD WEB SITE AND FORUMS ARE PERSONAL OPINION ONLY AND NOT NECESSARILY A STATEMENT OF FACT.
05-27-2012 10:14 AM
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PaulaO2 Offline
Wiki Editor
Moderators

Posts: 8,065
Joined: Feb 2012

Machine: S9 Autoset
Mask Type: Full face mask
Mask Make & Model: F&P Simplus
Humidifier: H5i
CPAP Pressure: 14-20
CPAP Software: SleepyHead

Other Comments: Ehlers-Danlos Syndrome, Hypermobility Type; chronic sarcasm

Sex: Undisclosed
Location: western NC, USA

Post: #6
RE: AHI question
(05-27-2012 09:48 AM)GrammaBear Wrote:  Thanks so much for the information. I never knew what the range for AHI should be, so I learned something today and that makes it a good day Smile

Here you go.

http://www.apneaboard.com/wiki/index.php..._%28AHI%29

PaulaO2
Apnea Board Moderator
www.ApneaBoard.com


Breathe deeply and count to zen.

INFORMATION ON APNEA BOARD FORUMS OR ON APNEABOARD.COM SHOULD NOT BE CONSIDERED AS MEDICAL ADVICE. ALWAYS SEEK THE ADVICE OF A PHYSICIAN BEFORE SEEKING TREATMENT FOR MEDICAL CONDITIONS, INCLUDING SLEEP APNEA. INFORMATION POSTED ON THE APNEA BOARD WEB SITE AND FORUMS ARE PERSONAL OPINION ONLY AND NOT NECESSARILY A STATEMENT OF FACT.
05-27-2012 02:07 PM
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zonk Offline

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Posts: 7,908
Joined: Feb 2012

Machine: A10 AutoSet
Mask Type: Nasal mask
Mask Make & Model: Activa LT
Humidifier: Integrated /ClimateLineAir
CPAP Pressure: 9/13
CPAP Software: ResScan

Other Comments: CPAP since Nov 2010

Sex: Male
Location: Australia

Post: #7
RE: AHI question
(05-27-2012 07:39 AM)GrammaBear Wrote:  I am curious if the mask might have an influence on the AHI numbers too?

Thank you for any input.
It can if leak gets over 24 L/min as high leak affect the accuracy of data. Feeling well rested with higher AHI is better than feeling lousy with low AHI but feeling well rested and low AHI is even better also note in deeper sleep which is the restorative sleep we tend to get more apnea events so low AHI on its own is not the best indication.
05-27-2012 03:40 PM
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