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How long does a sleep study need to be to detect central sleep apnoea
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zonk Offline

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Posts: 7,947
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: #11
RE: How long does a sleep study need to be to detect central sleep apnoea
(11-21-2015 06:28 PM)napnaptime Wrote:  
(11-21-2015 03:31 PM)archangle Wrote:  
(11-18-2015 12:12 PM)napnaptime Wrote:  Monday 09th - 4 Clear Airway events, 1 hypopnea events
Tuesday 10th - 5 Clear Airway events, 2 hypopnea events
Wednesday 11th - 4 Clear Airway events, 2 hypopnea events
Thursday 12th - 9 Clear Airway events, 2 hypopnea events
Friday 13th - 8 Clear Airway events, 1 hypopnea events
Saturday 14th - 10 Clear Airway events, 2 hypopnea events
Sunday 15th - 1 Clear Airway event, 0 hypopnea events

Total events or events per hour.

Doesn't sound too bad if it's per hour, but look at your flow rate waveforms and see how long the individual events are.

I don't know how to read this stuff I can barely read a page of a book my cognition is so messed up.
All explained in this guide http://www.apneaboard.com/wiki/index.php...SleepyHead
11-21-2015 07:16 PM
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zonk Offline

Advisory Members

Posts: 7,947
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: #12
RE: How long does a sleep study need to be to detect central sleep apnoea
(11-17-2015 04:31 PM)zonk Wrote:  Which S9 is your machine? the name printed next to on/off button
The S9 (except S9 Escape and S9 Escape Auto) detect and score central apnea
I think the autoset mode does a good job with central apnea, not by treatment but rather by not causing central apnea in the first place as it does not increase pressure in response to such events not associated with closed airways ... win win situation
11-21-2015 07:18 PM
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Mosquitobait Offline

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Posts: 818
Joined: Apr 2015

Machine: Resmed AirSense 10 For Her
Mask Type: Nasal pillows
Mask Make & Model: Respironics Dreamwear
Humidifier: integrated, Climate line tube
CPAP Pressure: 9-12.6
CPAP Software: SleepyHead

Other Comments: RLS and Bradycardia

Sex: Female
Location: Minneapolis

Post: #13
RE: How long does a sleep study need to be to detect central sleep apnoea
I get 4 to 5 clear airway events every night. Tossing and turning can actually do that. There are other possible causes. In my case, it's already known I have bradycardia AND RLS both of which contributes to my lack of rest. The bradycardia only shows up when I'm laying down, so oxymetry would maybe be of benefit.
11-22-2015 11:03 AM
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napnaptime Offline

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Posts: 61
Joined: Oct 2015

Machine: Resmed S9 AutoSet with H5i humidifier
Mask Type: Full face mask
Mask Make & Model: Resmed Airfit F10
Humidifier: Yes
CPAP Pressure: 10
CPAP Software: SleepyHead

Other Comments:

Sex: Male
Location:

Post: #14
RE: How long does a sleep study need to be to detect central sleep apnoea
(11-22-2015 11:03 AM)Mosquitobait Wrote:  I get 4 to 5 clear airway events every night. Tossing and turning can actually do that. There are other possible causes. In my case, it's already known I have bradycardia AND RLS both of which contributes to my lack of rest. The bradycardia only shows up when I'm laying down, so oxymetry would maybe be of benefit.

I have already had Oximetry done, my blood oxygen saturation was 93%. I woke up this morning at 7:30 a.m it is now 11:00 a.m. and I need to go back to bed. It is like someone just sucks the energy out of me.
(This post was last modified: 11-23-2015 06:16 AM by napnaptime.)
11-23-2015 06:15 AM
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Phill Offline

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Posts: 93
Joined: Nov 2015

Machine: ResMed S9 Auto Set
Mask Type: Full face mask
Mask Make & Model: ResMed AirFit F10
Humidifier: ResMed H5i, with heated hose
CPAP Pressure: unsure
CPAP Software: ResScan SleepyHead

Other Comments:

Sex: Male
Location: UK, sunny south coast.

Post: #15
RE: How long does a sleep study need to be to detect central sleep apnoea
My sleep study lasted one night.
As I recall I had a box strapped to my chest, a small pipe up each nostril, two sticky pad sensors attached to my chest, and one of those things that clamps to your finger which I think is for blood pressure.

Filling in the question sheet afterwards, in the comments section I stated that I thought the equipment was so uncomfortable that I found it hard to believe that any results could be representative of a nights sleep, good or otherwise!

No answer was forthcoming.

From this "study" it was somehow deduced that I had serious sleep apnea.
(This post was last modified: 11-23-2015 11:30 AM by Phill.)
11-23-2015 11:19 AM
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