Post Reply 
How to interpret AHI
Author Message
VegasPier Offline

Preferred Members

Posts: 38
Joined: Jan 2013

Machine: ResMed S9 Autoset
Mask Type: Full face mask
Mask Make & Model: Quatro FX
Humidifier: H5i
CPAP Pressure: 12
CPAP Software: SleepyHead

Other Comments:

Sex: Male
Location:

Post: #1
How to interpret AHI
I have been using the ResMed S9 Autoset for the past ten days. I have also been reading the data via SD card and Sleepyhead software. Most of the data is meaningless to me but I have been watching the AHI. With an AHI of 3 or less for most of last week (last night it was 1) can I conclude that I no longer have sleep apnea?

Any help in interpreting the ResMed data, in addition to AHI, would be appreciated.

Cheers, VegasPier
01-24-2013 11:21 AM
Find all posts by this user Post Reply Quote this message in a reply

Donate to Apnea Board
jgjones1972 Offline

Preferred Members-2

Posts: 516
Joined: Nov 2012

Machine: ResMed S9 AutoSet
Mask Type: Full face mask
Mask Make & Model: ResMed Quattro FX
Humidifier: ResMed H5i
CPAP Pressure: 18 - 20
CPAP Software: ResScan SleepyHead

Other Comments: CMS50I PulseOx

Sex: Male
Location: Ohio - USA

Post: #2
RE: How to interpret AHI
Well...you can't conclude you no longer have apnea, but you can conclude your treatment is effective.
01-24-2013 12:40 PM
Find all posts by this user Post Reply Quote this message in a reply
SuperSleeper Offline

Administrators

Posts: 9,961
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: #3
RE: How to interpret AHI
Howdy VegasPieer, welcome to Apnea Board!

You probably realize this, but just so others are clear on this, having an AHI below 5.0 does not mean that your sleep apnea has been "cured" or that you no longer have sleep apnea. Rather, it means that the treatment is working and has reduced your apnea events down to an acceptable level. Quit using CPAP and the apneas will come right back.

As far as interpreting SleepyHead data, I don't currently use that program, but here's the ResScan Data Interpretation Guide which has a lot of useful info in it that would also apply:

http://www.apneaboard.com/ResScan_Interpretation-Guide.pdf

Hoping others can offer more specific help to you on SleepyHead.

Smile

SuperSleeper
Apnea Board Administrator
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.

01-24-2013 12:46 PM
Find all posts by this user Post Reply Quote this message in a reply

Donate to Apnea Board
trish6hundred Offline

Advisory Members

Posts: 6,430
Joined: May 2012

Machine: Resmed S9 AutoSet for Her
Mask Type: Full face mask
Mask Make & Model: Fisher & Paykel Simplus
Humidifier: H5i Heated Humidifier
CPAP Pressure: 10 - 7-20 Cm H2O
CPAP Software: Not using software

Other Comments: I started CPAP in 2008. Totally blind since birth.

Sex: Female
Location: Missouri, USA

Post: #4
RE: How to interpret AHI
Hi VegasPieer and WELCOME! to the forum.!
What jgjones1972 and SuperSleeper said.
I currently don't use any software so hang in there for more suggestions.
Best of luck to you with your CPAP therapy.

trish6hundred
01-24-2013 01:11 PM
Find all posts by this user Post Reply Quote this message in a reply
Dawei Offline

Preferred Members-2

Posts: 342
Joined: Feb 2012

Machine: ResMed S9 AutoSet
Mask Type: Other
Mask Make & Model: Respironics "FitLife"
Humidifier: H5i
CPAP Pressure: 10-20
CPAP Software: ResScan SleepyHead

Other Comments: Began CPAP in 2006; spent the first 6 years with a "brick"

Sex: Male
Location: Western North Carolina

Post: #5
RE: How to interpret AHI
Welcome, VegasPieer--I have witnessed what SuperSleeper wrote about experiencing my full apnea symptoms returning just as soon as I stop using the machine. So, one must continue using the machine and mask; it's ongoing. As far as all the data your S9 is collecting, there's one data line that goes along with AHI in importance, I'd say. And that is the leakage rate. Having a leak rate that is too high will throw off the AHI numbers reported by the machine. It's not in Sleepyhead, but in ResScan software, the company has a red line at 24L marking the maximum acceptable leak rate for the machine to provide correct data. ResMed says the machine is able to compensate for a leak up to that level but not beyond.
01-24-2013 01:39 PM
Find all posts by this user Post Reply Quote this message in a reply

Donate to Apnea Board
Ugly Offline

Preferred Members

Posts: 568
Joined: Oct 2012

Machine: ResMed S9 AutoSet
Mask Type: Nasal mask
Mask Make & Model: ResMed Mirage Micro
Humidifier: ResMed H5i
CPAP Pressure: 7-14
CPAP Software: ResScan SleepyHead

Other Comments: Hydrocephalus, myopia, depression, chronic ugliness, stupidity, tinnitus, mixed sleep apnea.

Sex: Male
Location: Barrie Ontario Canada

Post: #6
RE: How to interpret AHI
(01-24-2013 11:21 AM)VegasPieer Wrote:  I have been using the ResMed S9 Autoset for the past ten days. I have also been reading the data via SD card and Sleepyhead software. Most of the data is meaningless to me but I have been watching the AHI. With an AHI of 3 or less for most of last week (last night it was 1) can I conclude that I no longer have sleep apnea?

Hahaha no. You misunderstand the concept.
Sorry for laughing and I realize it's an honest mistake.
Let me try to draw a comparison.

Okay. It's like when you have a cold and you take cough syrup.
You've treated the symptoms only. But you still have a cold.
You're not cured.

With a CPAP you've treated the symptoms of sleep apnea.
But you'd better believe it, you're not cured.
Oh-jeez

Expect to have apnea for life. Especially if it's "mixed" or central.
I know that even my own doctor suggested the symptoms can be alleviated if I lost weight. Maybe so. But it's not a cure.

And it's hazardous to your well being to "experiment" to see if you're "cured" or not. Having a low AHI simply means your treatment is working. It's probably a good idea not to mess with it.

Sleep-well
01-24-2013 01:56 PM
Find all posts by this user Post Reply Quote this message in a reply
big_dave Offline

Advisory Members

Posts: 409
Joined: Apr 2012

Machine: PR System One DS560
Mask Type: Nasal pillows
Mask Make & Model: F&P Pilairo Q or ResMed Mirage Activa
Humidifier: PR System One
CPAP Pressure: 14 - 20
CPAP Software: SleepyHead

Other Comments: Former ResMed S8 Autoset II user

Sex: Male
Location: Eugene, Oregon

Post: #7
RE: How to interpret AHI
My AHI is generally around 3. However, if I am foolish enough to take a nap without my machine, I am groggy the rest of the day. Definitely not cured.
01-24-2013 02:24 PM
Find all posts by this user Post Reply Quote this message in a reply

Donate to Apnea Board
zonk Offline

Advisory Members

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: #8
RE: How to interpret AHI
cpap is treatment ... not a cure
there is more to the therapy than AHI
AHI tells the number of apnea events that lasted 10 sec or more per hour during the night
but does not tell you hours slept or if slept thru the night or "how do you feel"

fragmented sleep can prevent you getting into deeper stages of sleep which is important for restful sleep and waking up feeling refreshed

its going to take some time and improvement can be slow coming after years with apnea and sleep deprivation
01-24-2013 03:21 PM
Find all posts by this user Post Reply Quote this message in a reply
2Tim215 Offline

Preferred Members-2

Posts: 283
Joined: Oct 2012

Machine: S9 ResMed AutoSet
Mask Type: Nasal pillows
Mask Make & Model: Swift FX Nasal Pillow - Medium
Humidifier: ResMed H5i w/Climate Hose
CPAP Pressure: 6cm-12cm
CPAP Software: ResScan SleepyHead

Other Comments: OSA, Fibromyalgia, Rheumatoid Arthritis, Osteoarthritis, Gout, PTSD, & Meralgia paresthetica.

Sex: Male
Location: Finger Lakes Region, NY

Post: #9
RE: How to interpret AHI
Welcome Sounds like your therapy is going very well. But as stated by others it is the treatment of CPAP Therapy that is bringing yours numbers down. I have learned even when napping to use my CPAP. A few hours here and there with no therapy while sleeping can add up to trouble in the future! Glad you joined us, lots of nice people here with plenty of experience!

Tim
Finger Lakes Region, NY
01-29-2013 01:29 AM
Find all posts by this user Post Reply Quote this message in a reply

Donate to Apnea Board
archangle Offline
Wiki Editor
Advisory Members

Posts: 3,159
Joined: Feb 2012

Machine: ResMed S9 AutoSet
Mask Type: Nasal pillows
Mask Make & Model: ResMed Swift FX
Humidifier: ResMed S9 H5i
CPAP Pressure: 16-20
CPAP Software: ResScan SleepyHead EncoreBasic

Other Comments: Happy PAPper

Sex: Undisclosed
Location: USA

Post: #10
RE: How to interpret AHI
As to "cured," you could reasonably say you're "cured" until you try to sleep without the machine.

AHI is the most easy and useful measure of apnea. It's not a perfect measure of how bad your apnea is, but it's a good starting point. Once you learn how to read the data your machine records and look at the graphs, you can go a little deeper. If your AHI is good, and you feel OK, don't obsess over it.

Get the free SleepyHead software here.
Useful links.
Click here for information on the main alternative to CPAP.
If it's midnight and a DME tells you it's dark outside, go and check it yourself.
01-29-2013 11:49 AM
Find all posts by this user Post Reply Quote this message in a reply
Post Reply 


Possibly Related Threads...
Thread: Author Replies: Views: Last Post
  [Symptoms] Interpret troubling flow & respiration rates 2SleepBetta 4 686 12-24-2015 03:21 PM
Last Post: vsheline
  how to interpret sleep study report katrinae 4 905 11-01-2015 06:26 PM
Last Post: PoolQ
  How to Interpret SleepyHead Information Slothy 3 840 10-27-2015 12:00 PM
Last Post: Slothy
  Please help me interpret my Sleepyhead Data Happiest 12 2,418 07-04-2015 03:20 PM
Last Post: OpalRose
  please help interpret first weeks stats Mark Douglas 2 704 06-10-2015 10:55 AM
Last Post: Mark Douglas
Question [Treatment] Help interpret results? splitter 15 2,690 01-22-2015 10:14 PM
Last Post: surferdude2
  Pulse Oximeter readings How to interpret? kfujioka 5 4,266 12-20-2014 12:47 AM
Last Post: quiescence at last

Forum Jump:

Who's Online (Complete List)