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Apnea vs Obstructive?
#1
I am still trying to tell the difference between "Apnea" and "Obstructive Apnea" in Sleepyhead.

Can any of you who know so much more than I do, look at my info and help to explain the difference and the relevance?

My AHI of 13.48 looks terrible but when I look at the graphs that I still don't know how to post, I can see massive leaks over 40 or even over 50 during 2 periods last night. The first from 2:00 to 2:15 just before a potti break and the second from 5:00 to 6:00 for no apparent reason. The rest of the time my leaks were below 10.

The "Apnea" all happened at the times of high leaks.there were only a total of 4 OA events all during high leak.

The "Clear Airway" events were clustered before and after the high leak but non during the high leaks.

The only Hypopnea was just after 2:00 during high leak.

Snore went up during high leak but never got over 0.19.

Insp time went way up with the leaks but Exp time did not seem to change.

My bedroom got really cool last night for the first time in a while and the top sheet was not enough to keep me warm. I vaguely recall fighting with the blanket in the early AM, which may have contributed to the leaks.

ResMed
S9 AutoSet
Mode: APAP 5-10.4cmH2O
Date Sleep Wake Hours
9/26/2013 23:14 06:48 07:30:34
AHIApnea / Hypopnea Index 13.98
HypopneaHypopnea 0.13
ApneaUnspecified Apnea 7.19
ObstructiveObstructive Apnea 0.53
Clear AirwayClear Airway Apnea 6.13

Event Breakdown


Statistics
Channel Min Med 95% Max
PressurePressure (cmH20)
W-Avg: 7.05 5.00 6.82 8.90 9.56
EPAPExpiratory Pressure (cmH20)
W-Avg: 4.40 4.00 4.00 5.90 6.56
Minute Vent.Minute Ventilation (L/min)
W-Avg: 7.03 2.38 6.62 11.38 13.88
Resp. RateRespiratory Rate (breaths/min)
W-Avg: 16.86 8.00 16.80 20.60 23.00
Flow LimitFlow Limit Graph (0-1)
W-Avg: 0.01 0.00 0.00 0.06 0.14
LeaksLeak Rate (L/min)
W-Avg: 10.69 0.00 6.00 42.00 50.40
SnoreSnore (unknown)
W-Avg: 0.05 0.00 0.04 0.20 0.26
Insp TimeInspiratory Time (seconds)
W-Avg: 1.81 0.54 1.60 3.22 7.10
Exp TimeExpiratory Time (seconds)
W-Avg: 1.92 0.04 1.94 2.54 4.04
Tidal VolumeTidal Volume (ml)
W-Avg: 419.24 120.00 400.00 700.00 1000.00

Machine Settings
Pr. ReliefPressure Relief EPR x3

Session Information
SessionID On Date Start End
CPAP Sessions
1380262468ResMed CPAP 2h, 54m, 11s 9/26/2013 23:14 02:08
1380273116ResMed CPAP 4h, 36m, 23s 9/27/2013 02:12 06:48
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#2
Unspecified apnea occurs during high leak because the flow of air is not good enough to distinguish between the two types. When you eliminate your large leaks you will eliminate your unspecified apnea.
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#3
Thank you. That makes sense.

Now second part of the question, why did the many CA occur before and after the large leaks but not during the leaks.

(09-27-2013, 10:20 PM)STL Mark Wrote: Unspecified apnea occurs during high leak because the flow of air is not good enough to distinguish between the two types. When you eliminate your large leaks you will eliminate your unspecified apnea.

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#4
During large leaks the machine not only cannot tell what kind of apnea you're having, it can't reliably tell you if you're having an apnea.

The data is rubbish during large leaks.

For CPAP therapy to be effective you must first and foremost get rid of the large leaks.

It's harder to control leaks with full face masks. Is a nasal mask an option for you?
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.
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#5
How to do attachments:
http://www.apneaboard.com/forums/Thread-...ttachments
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.




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#6
Cinch down the straps on the mask.
[Image: pBt22Od.jpg]
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