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Sleepyhead question
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Rustym511 Offline

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Machine: Resmed s9
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Post: #1
Sleepyhead question
When there is a spike on the AHI chart, what does that signify?
Also is there a simple explanation of each of the charts somewhere? I am new to this and don't really understand the terms.
Thank you
07-19-2013 04:37 PM
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zonk Offline

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Location: Australia

Post: #2
RE: Sleepyhead question
I've not used SleepyHead yet, not sure what "spikes on AHI" mean but AHI at or below 5 considered good therapy and how you feel is important too. "How to use SleepyHead" video posted by britincanada http://www.apneaboard.com/forums/Thread-how-to-use-sleepyhead
SleepyHead glossary http://sourceforge.net/apps/mediawiki/sl...r_Glossary

Welcome
(This post was last modified: 07-19-2013 05:19 PM by zonk.)
07-19-2013 05:17 PM
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trish6hundred Offline

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Post: #3
RE: Sleepyhead question
Hi Rustym511,
WELCOME! to the forum.!
What zonk said and you might look at the wiki page here on the board. I think there are also some threads dealing with Sleepyhead as well.
Hang in there for more answers to your question and best of luck with CPAP therapy.

trish6hundred
07-19-2013 05:26 PM
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RonWessels Offline

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Machine: REMstar Auto AFlex DS560TS
Mask Type: Nasal mask
Mask Make & Model: ComfortGel Blue
Humidifier: REMstar Heated Tube DS6T
CPAP Pressure: 11 - 20
CPAP Software: SleepyHead

Other Comments: CMS50F Pulse Oximeter

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Location: Ontario, Canada

Post: #4
RE: Sleepyhead question
Firstly, if you are not aware, AHI (or Apnea Hypopnea Index) represents the average number of apnea and hypopnea events occurring every hour. It is an indication of the severity of a patient's apnea. A value of 5 or less is considered normal. A value of 5-15 is considered mild. A value of 15-30 is considered moderate. A value of 30+ is considered severe.

Unlike the AHI report from a sleep study or from the summary display on your CPAP machine, SleepyHead computes a running computation of AHI values. It totals the number of apnea and hypopnea events in the previous hour and plots that number at that time. So a spike on the AHI chart indicates that one or more events happened at the point of the spike, and are now included in the sum. If no further events occur, an hour later, the AHI chart will return to 0.

In a previous thread here, some of the more important graphs were explained.
07-19-2013 05:36 PM
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PaulaO2 Offline
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Post: #5
RE: Sleepyhead question
Also remember that no two nights are the same. By looking at the data, we get a good idea of what is our normal ranges. Then, when something goes wonky, we can see it.

Things that could effect AHI are numerous. Stress levels, sleep quality, alcohol consumption, certain foods, new pillow, the heat, the cold, etc. Then there's mechanical such as leaks, sleeping on our backs, etc.

PaulaO2
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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.
07-19-2013 08:37 PM
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RonWessels Offline

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Posts: 465
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Machine: REMstar Auto AFlex DS560TS
Mask Type: Nasal mask
Mask Make & Model: ComfortGel Blue
Humidifier: REMstar Heated Tube DS6T
CPAP Pressure: 11 - 20
CPAP Software: SleepyHead

Other Comments: CMS50F Pulse Oximeter

Sex: Male
Location: Ontario, Canada

Post: #6
RE: Sleepyhead question
Also, when you look at the data, remember that anything that happens while you are still awake shouldn't count. I often end up holding my breath as I futz with my pillows. Since the machine doesn't know if I'm asleep or not, it counts that as apnea events, artificially inflating the AHI above its "true" value.
07-19-2013 10:26 PM
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courtney123 Offline

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Sex: Male
Location: Honolulu, Hawaii

Post: #7
RE: Sleepyhead question
(07-19-2013 08:37 PM)PaulaO2 Wrote:  Things that could effect AHI are numerous. Stress levels, sleep quality, alcohol consumption, certain foods, new pillow, the heat, the cold, etc. Then there's mechanical such as leaks, sleeping on our backs, etc.

I'd just like to add the direction of the wind, size of the moon and whether you're facing East or North can sometimes fiddle with the numbers.
In other words - once you learn to see what's normal vs. abnormal in the graphs you'll find there can be occasional goofy stuff and mis-readings.
Take it all as a guide and not a "take to the bank" assessment of your sleep last night.

Sorry for jumping in :grin:





Quote:
ADMIN NOTE:
This thread is now closed. If you have a question regarding the SleepyHead software package, please go HERE.

To download the SleepyHead software, go here:
http://www.SleepFiles.com/SH/

Aloha,
MrCourtney
Honolulu, HI
07-19-2013 11:29 PM
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