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

Update: flow limitations, I:E ratio, and switch to VAuto
#1
Update: flow limitations, I:E ratio, and switch to VAuto
I’m writing to provide an update to this thread from January of 2019:
 
http://www.apneaboard.com/forums/Thread-...-questions
 
Per recommendations from Bonjour and Sleeprider, I addressed flow limitations by switching from a ResMed Airsense 10 Autoset to a ResMed Aircurce VAuto  (self-funded) in July of 2019.  I gradually raised the pressure support, encountering aerophagia and an increase in centrals along the way.  Once PS reached 4.8, the 95% values for FLs were consistently 0.  Above 4.8, the aerophagia and centrals were a little too much for me to deal with, so I backed down to 4.8, and after about 2-3 months, the centrals settled down.
 
Given that my AHI has always been good, I suppose the big question is: how do I feel?  The answer is: definitely better.  I have a chronic pain problem that makes the second half of most nights pretty choppy, so I can’t say I feel tremendously rested during the day.  But my mood is better, my sense of energy is better, I rarely want a nap, and my cognition is better.
 
A few other observations:
 
*  I no longer think the FL problem was the dust-mite allergy.  That is still with me, but the FLs aren't. 
 
*  I’m also completely reassured about my I:E ratio.  The VAuto measures these values differently from the Airsense, and it gets them right, i.e., it is not fooled by cardiogenic oscillations (aka cardioballistic effect).  My I:E ratio is around 48-49.

*  My TV has gone up from a median of 440 to a median of 460, and MV has increased from a median of 6 to a median of 6.25.  Respiration rate is about the same.
 
*  The ResMed algorithms pick up a lot of flow limitation, but not all.
 
I’m attaching before and after pictures (note a custom Y-axis).
 
I’m so grateful to Bonjour and Sleeprider for steering me aright, and I hope this update will be helpful to other forum members who struggle with flow limitations.


Attached Files Thumbnail(s)
       
Post Reply Post Reply






Donate to Apnea Board  
#2
RE: Update: flow limitations, I:E ratio, and switch to VAuto
Looks a lot like my own experience, and I think it's fair to say, we're as good as we can be, if not picture perfect. This is the result of a careful trial and error process that brought you the best possible results. If this is what makes for better sleep then everything was done right. I say this as I personally had a really bad sleep last night, disrupted from the need to get up early for an eye procedure (laser capsulotomy to clear up a post-cataract surgery issue). Good therapy does not solve all the problems, but is makes things better, and hopefully that's good enough. Congrats!!
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


Possibly Related Threads...
Thread Author Replies Views Last Post
  Which information to ask for when buying a used cpap machine? AirCurve 10 VAUTO vrapche031 8 181 11 hours ago
Last Post: crowtor
Question [Equipment] resmed aircurve 10 vauto clinical settings defined rpotter3514 1 65 Yesterday, 10:41 AM
Last Post: Sleeprider
  UARS - Jagged Flow Rate on Exhale + Frequent Flow Rate Spikes jdip 9 201 06-30-2020, 09:45 PM
Last Post: Sleeprider
  S10 AirCurve VAuto BiLevel staceyburke 10 297 06-28-2020, 08:21 AM
Last Post: bonjour
  Vauto?? (duh) ASV...Ins.Co.'s AGAIN !) optimalsleep 22 456 06-28-2020, 08:15 AM
Last Post: Sleeprider
  Therapy-Airsense 10 Autoset to Aircurve 10 Vauto drmaestro 49 1,133 06-27-2020, 09:19 AM
Last Post: Sleeprider
  Dreamstation vs Vauto in a supposed UARS case fejsbukpejdz 9 168 06-26-2020, 07:19 AM
Last Post: slowriter


New Posts   Today's Posts






About Apnea Board

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