Hello Guest, Welcome to Apnea Board !
As a guest, you are limited to certain areas of the board and there are some features you can't use.
To post a message, you must create a free account using a valid email address.

or Create an Account


New Posts   Today's Posts

New to CPAP and have questions about my diagnosis
#11
RE: New to CPAP and have questions about my diagnosis
MikeBob, thanks for posting the sleep study. I'm quite struck by your O2 desaturations, which were below 90% for 22% of the study period. This is not good, and it tells me that you should trust the diagnosis of severe sleep apnea.

If you have the resources, you might want to invest in a recording O2 monitor compatible with Oscar, just to be sure your O2 sats have improved along with your AHI. On the welcome page of Oscar, click on Oximetry Wizard to see a list of monitors that would be compatible.

It might help you to know that the pressure range that successfully treats obstructive apnea is not correlated with the severity of the apnea. Someone can have severe apnea that is well treated at low pressures; someone else can have mild or moderate apnea that can't be budged except with high pressures.
Post Reply Post Reply






Donate to Apnea Board  
#12
RE: New to CPAP and have questions about my diagnosis
(02-12-2021, 04:37 PM)Dormeo Wrote: MikeBob, thanks for posting the sleep study.  I'm quite struck by your O2 desaturations, which were below 90% for 22% of the study period.  This is not good, and it tells me that you should trust the diagnosis of severe sleep apnea.  

If you have the resources, you might want to invest in a recording O2 monitor compatible with Oscar, just to be sure your O2 sats have improved along with your AHI.  On the welcome page of Oscar, click on Oximetry Wizard to see a list of monitors that would be compatible.

It might help you to know that the pressure range that successfully treats obstructive apnea is not correlated with the severity of the apnea.  Someone can have severe apnea that is well treated at low pressures; someone else can have mild or moderate apnea that can't be budged except with high pressures.

Thanks for the reply, and reminding me, The therapist had mentioned she wanted to hook me up to an oximeter again after her initial interpretation of the study. I just phoned the CPAP shop and they had no record of this request. And now will likely push this forward. Smile
Post Reply Post Reply
#13
RE: New to CPAP and have questions about my diagnosis
Good, I'm glad you'll be getting an oximeter -- ideally one whose data you can import into Oscar.
Post Reply Post Reply
#14
RE: New to CPAP and have questions about my diagnosis
This is a sample of what CSR looks like. zoom (click on the flow rate chart) until you have a 10-minute view that shows the flow rate in a similar manner to the above.  Scan the data using the arrow keys looking for a similar pattern then screenshot and post.  I am particularly interested in the areas of heavier flow limitations.

Because of your oxygen sats I do recommend that you get a recording pulse-oximeter to verify that you do not have an issue, this should be done periodically, but not every night unless you have an issue. 
 
.htm   File_CSR-example_zpsee76d5af[1].htm (Size: 18.97 KB / Downloads: 3)
Gideon - Project Manager and Lead Tester for OSCAR - Open Source CPAP Analysis Reporter

Download OSCAR
New to Apnea? Helpful tips to ensure success
Soft Cervical Collar
Mask Primer
Dealing with a DME
Organize Charts
Optimizing Therapy
Post Reply Post Reply






Donate to Apnea Board  
#15
RE: New to CPAP and have questions about my diagnosis
(02-12-2021, 05:48 PM)Gideon Wrote: This is a sample of what CSR looks like. zoom (click on the flow rate chart) until you have a 10-minute view that shows the flow rate in a similar manner to the above.  Scan the data using the arrow keys looking for a similar pattern then screenshot and post.  I am particularly interested in the areas of heavier flow limitations.

Because of your oxygen sats I do recommend that you get a recording pulse-oximeter to verify that you do not have an issue, this should be done periodically, but not every night unless you have an issue. 
 

Sorry I don't have permission to access the file you are wanting me to open
Post Reply Post Reply
#16
RE: New to CPAP and have questions about my diagnosis
try this
http://www.apneaboard.com/wiki/index.php..._Breathing
Gideon - Project Manager and Lead Tester for OSCAR - Open Source CPAP Analysis Reporter

Download OSCAR
New to Apnea? Helpful tips to ensure success
Soft Cervical Collar
Mask Primer
Dealing with a DME
Organize Charts
Optimizing Therapy
Post Reply Post Reply
#17
RE: New to CPAP and have questions about my diagnosis
Ok is this what you wanted?

   
Post Reply Post Reply






Donate to Apnea Board  
#18
RE: New to CPAP and have questions about my diagnosis
Yes, is this the worst of it?


Don't be alarmed, seriously don't.
This is the kind of stuff I was looking for because of the CSR reported in your diagnostic study.   Not enough here to worry about.
2:08:15 Reduced flow (Flow Limits? or CO2 induced breathing reduction?) prior to IMHO an incorrectly flagged RERA.  
2:09:00 Same as above
These 2 events indicate to me that you may be near your apneic threshold.  To be CSR there needs to be more of these in a row and they need a CA event in between in the reduced flow area before and after.  

02:14:15 arousal This is what your machine thought the heavier breathing was where the above RERAs are flagged.  I believe that this is CO2 affected breathing.  'high' CO2 levels in our blood provide the main drive to breathe and the impact of this what I interpret as happening for much of the period between 2:08:15 and the arousal at 02:14:15

02:10:30 see the smooth waxing and waning here,

High CO2 levels result in heavier breathing flushing more CO2 out of our system, As the levels reduce you breathe less and less deep until levels drop below your apneic threshold and you have a CA event (you are not here) then CO2 gradually builds up and you gradually increase the deepness of your breaths.  and the cycle repeats.

I would like you to scan the rest of the night for similar periods.
Gideon - Project Manager and Lead Tester for OSCAR - Open Source CPAP Analysis Reporter

Download OSCAR
New to Apnea? Helpful tips to ensure success
Soft Cervical Collar
Mask Primer
Dealing with a DME
Organize Charts
Optimizing Therapy
Post Reply Post Reply
#19
RE: New to CPAP and have questions about my diagnosis
   

K here is another
Post Reply Post Reply
#20
RE: New to CPAP and have questions about my diagnosis
Your first example looked like obstructive flow limitation that reduced flow rate resulting in a RERA where we saw recovery breathing. The most recent example is also obstructive. If this was a frequent feature of your sleep, I'd have you looking at positional therapy remedies like a soft cervical collar, but while this is chin-tucking obstruction, it's not worth chasing at this low AHI. Our sleep and sleep breathing is not perfect, and there is no reason to pursue that goal. Your results look very good. Don't over-analyze it, however your minimum pressure is set to 8.0 and your median is over 12.5. I would suggest that your minimum pressure is far too low.
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.
Post Reply Post Reply






Donate to Apnea Board  


Possibly Related Threads...
Thread Author Replies Views Last Post
  Bipap Titration for Preliminary UARS Diagnosis marasmus 1 71 02-21-2021, 04:22 PM
Last Post: Sleeprider
  [Diagnosis] Central Apnea Diagnosis Stuzz 6 175 02-11-2021, 12:49 PM
Last Post: Sleeprider
  Questions about Running CPAP on Battery when camping funnyBizns 4 300 01-14-2021, 11:53 PM
Last Post: funnyBizns
Cool Brand new cpap user! Some questions regarding my first night xdestry 48 1,625 01-12-2021, 10:39 AM
Last Post: SarcasticDave94
  [Diagnosis] Cant get a concrete diagnosis Benjy505 33 636 12-21-2020, 04:23 PM
Last Post: happydreams
  [Diagnosis] Sleep test interpretation help (Questioning my diagnosis...) cpapneas 14 429 12-09-2020, 07:00 PM
Last Post: Sleeprider
  Which Travel CPAP Machine should I get? + a few other questions WWu777 32 1,902 10-28-2020, 10:54 AM
Last Post: Sleeprider


New Posts   Today's Posts






About Apnea Board

Apnea Board is an educational web site designed to empower Sleep Apnea patients.