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Pressure drop
#1
Pressure drop
   

This is a screenshot of my reading for Jan 8th and I am wondering if anyone has seen this type of pressure drop before, I know there are a lot of leakage that night but I have had large leaks before without it affecting the pressure like this, I would really appreciate any input as to what might have caused this drop.
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#2
RE: Pressure drop
Ahh I think this is just an OSCAR "undocumented feature". I think I saw something earlier in the week about there being an upcoming fix, but see what the others say.
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#3
RE: Pressure drop
Try purging that days data, then re-import it and see if the problem is fixed for you.
Jeff8356

MacBook Air (2017, Intel) | macOS Monterey (12.7) | OSCAR v1.5.1 | VM = Win10/Win11 |
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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.
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#4
RE: Pressure drop
This graphing feature is the result using constant pressure and disconnecting the mask before stopping the machine, giving a final pressure of zero.

The display can be corrected in Preferences, the Appearance tab. Tick 'Square wave plot'
Apnea Board Monitors are members who help oversee the smooth functioning of the Board. They are also members of the Advisory Committee which helps shape Apnea Board's rules & policies. Membership in the Advisory Members group does not imply medical expertise or qualification for advising Sleep Apnea patients concerning their treatment.
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#5
RE: Pressure drop
Gbbarry, are you by any chance trying to treat complex or central apnea with that ST machine? It isn't working and you need ASV.
Sleeprider
Apnea Board Moderator
www.ApneaBoard.com

____________________________________________
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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.
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#6
RE: Pressure drop
Central apnea is the main problem and my readings fluctuate quite a lot the lowest I have had is AHI 18 last night was 40.59,

I have never taken my mask off before switching machine off it is just routine for me to do it the other way round.
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#7
RE: Pressure drop
>>>I have never taken my mask off before switching machine off it is just routine for me to do it the other way round.

Very good; that also avoids the huge leak.

In any case, clicking on Square Wave Plat in Preferences->Appearances tab should cure it.
Apnea Board Monitors are members who help oversee the smooth functioning of the Board. They are also members of the Advisory Committee which helps shape Apnea Board's rules & policies. Membership in the Advisory Members group does not imply medical expertise or qualification for advising Sleep Apnea patients concerning their treatment.
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#8
RE: Pressure drop
(01-11-2022, 02:24 PM)gbbarrie Wrote: Central apnea is the main problem and my readings fluctuate quite a lot the lowest I have had is AHI 18 last night was 40.59,

I have never taken my mask off before switching machine off it is just routine for me to do it the other way round.

I'd like you to start a thread in the main forum to talk about your Central Apnea using the ST and perhaps we can help you move to the proper therapy.  Dispensing ST to central apnea patients is extremely common, but it is an error and you clearly need the ASV.  We have many members that have made this transition.
Sleeprider
Apnea Board Moderator
www.ApneaBoard.com

____________________________________________
Download OSCAR Software
Soft Cervical Collar
Optimizing Therapy
Organize your OSCAR Charts
Attaching Files
Mask Primer
How To Deal With Equipment Supplier


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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#9
RE: Pressure drop
(01-11-2022, 03:30 PM)Sleeprider Wrote: I'd like you to start a thread in the main forum to talk about your Central Apnea using the ST and perhaps we can help you move to the proper therapy.  Dispensing ST to central apnea patients is extremely common, but it is an error and you clearly need the ASV.  We have many members that have made this transition.

As a new subscriber to apneaboard I have not figured out how to start a thread in main forum I initially thought that is where I was posting . I must admit I have been thinking along the same lines of needing an ASV but my sleep Dr`s assistant who I saw just before Christmas said he was happy with my readings because they were a lot lower than when I had my sleep test ( which I havn`t seen ) but he said registered my AHI in the 50`s, but I had just told him I didn`t think he was listening to what I was saying which put him on the back foot, and after that he couldn`t wait to leave. I have to say I have learned more about my affliction reading comments on here than I have learned from anywhere else. Thanks
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#10
RE: Pressure drop
Look in the Private Area - Forum Account Help for all sorts of information.

Here is the one for starting a new thread: http://www.apneaboard.com/forums/Thread-...83#pid3283
Crimson Nape
Apnea Board Moderator
www.ApneaBoard.com
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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.
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