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[Equipment] AHI accuracy from AutoSv machine
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fstellab Offline

Members

Posts: 6
Joined: Jan 2015

Machine: Resp. System 1 Advan AutoSV
Mask Type: Nasal mask
Mask Make & Model: unsure
Humidifier: Resp
CPAP Pressure: 25
CPAP Software: SleepyHead

Other Comments:

Sex: Male
Location: Saint Johns, FL near St. Augustine NE Florida

Post: #1
AHI accuracy from AutoSv machine
Hi Folks,

I just starting using my Respronics advanced Bipap autosv again (story for another post). Things appear to be going well Sleepyhead is reporting my AHI to be less then 1. Is this accurate ?

I am feeling better but the difference is very slight day to day, but I feel better this week then the start of last week.

-Fred
06-28-2016 01:10 AM
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chill Online

Advisory Members

Posts: 850
Joined: Mar 2016

Machine: DreamStation X500
Mask Type: Full face mask
Mask Make & Model: Walk-in Mask Closet
Humidifier: DreamStation
CPAP Pressure: 13-16
CPAP Software: SleepyHead

Other Comments: CPAP True Believer

Sex: Male
Location: Vancouver, Canada

Post: #2
RE: AHI accuracy from AutoSv machine
We can't really judge accuracy without seeing some SleepyHead graphs. But most nights, my AHI is below 1 so the number is credible.
06-28-2016 01:12 AM
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richb Online

Advisory Members

Posts: 526
Joined: Jun 2015

Machine: Resmed AirCurve 10 ASV
Mask Type: Nasal mask
Mask Make & Model: ResMed Mirage FX
Humidifier: Built in
CPAP Pressure: Epap 6 Ipap 8 Auto ASV
CPAP Software: ResScan SleepyHead

Other Comments: Idiopathic Central Apnea

Sex: Male
Location: Vermont

Post: #3
RE: AHI accuracy from AutoSv machine
I am on a ResMed ASV machine. My AHI is usually below 0.5.

Rich

Apnea Board Member RobySue has posted a Beginners Guide to Sleepyhead Software here: http://www.apneaboard.com/wiki/index.php...SleepyHead
06-28-2016 07:51 AM
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OMyMyOHellYes Offline

Advisory Members

Posts: 915
Joined: Mar 2013

Machine: Respironics 560 Auto
Mask Type: Nasal mask
Mask Make & Model: Resmed Mirage FX
Humidifier: Respironics System One (no heated hose)
CPAP Pressure: 08.0-15.0 cm/H2O
CPAP Software: EncoreBasic

Other Comments:

Sex: Male
Location: Texas

Post: #4
RE: AHI accuracy from AutoSv machine
I'm curious. Why do you doubt the reported data? Because you are not turning handsprings out of bed? For some folks, it takes weeks or even months to fully recover from a long time of no good sleep. I don't know if I fully subscribe to the strict hour-for-an-hour net sleep deficit theory, but i think there is evidence of a certain sleep deficit that one has to dig out of even if it's just healing the damage done.

I rotated out my old PRS! Auto a few days ago, earlier than I planned, and when I did, I checked the data (note that normally I DO NOT CHECK DATA more than once or twice a year). My AHI numbers ran from less than 1 to just over 1 ~ call it an average of 1. Still lack the energy I would like and find myself dragging. But I have a few more balls in the air than just OSA.

OMMOHY
(This post was last modified: 06-28-2016 10:21 AM by OMyMyOHellYes.)
06-28-2016 10:15 AM
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klv329 Offline

Preferred Members

Posts: 27
Joined: Aug 2015

Machine: Resmed s9 Adapt
Mask Type: Nasal pillows
Mask Make & Model: Resmed LT
Humidifier: 80
CPAP Pressure: 8.2, 1.4-10.0
CPAP Software: SleepyHead

Other Comments:

Sex: Male
Location: St. Petersburg, FL

Post: #5
RE: AHI accuracy from AutoSv machine
Using an s9 adapt, I really don't get much in the way of numbers for giudance.

I found that if I lower the maximum pressure support too much, then I get daytime symptoms of poor sleep. But that still didn't give me numbers as guidance.

Also, if I let my chin drop using this incline bed to reduce acid reflux, I get daytime symptoms of bad sleep. But still no numbers as guidance, even with arousals I can remember.

It's kinda like when I started cpap and had to expirement with the pressure because the sleep study pressure didn't work all that well, and I didn't really know what the numbers meant anyway.

So what do the numbers mean varies by person, I suppose.

I try to understand the flow chart to understand what might be going on from time to time, but I'm not too good at interpreting it.

But I figure things are going fairly well for now based on how I feel and by controlling some of these variables and settings that impact sleep quality.
06-28-2016 06:40 PM
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fstellab Offline

Members

Posts: 6
Joined: Jan 2015

Machine: Resp. System 1 Advan AutoSV
Mask Type: Nasal mask
Mask Make & Model: unsure
Humidifier: Resp
CPAP Pressure: 25
CPAP Software: SleepyHead

Other Comments:

Sex: Male
Location: Saint Johns, FL near St. Augustine NE Florida

Post: #6
RE: AHI accuracy from AutoSv machine
Thanks so much folks,

There is a lot more to my story. I will write up a short history and send the Sleepyhead graphs. I may need a day or so.
06-29-2016 11:46 AM
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