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

Sleep test Titration with ASV
#1
Sleep test Titration with ASV
As I wait patiently for my dr to tell me what to do next, I have a question that I can’t find an answer to. My results from ASV titration to max ps 20, max epap 5, min ps 6, min epap 5, rate 10 bpm show 2 central apneas and 94 central hypopneas. 

From what I understand, the Resmed ASV doesn’t record centrals because it stops them in their tracks. Why didn’t my sleep test do the same?
Post Reply Post Reply






Donate to Apnea Board  
#2
RE: Sleep test Titration with ASV
I'm only putting forth a guess, either the pressures were still not optimal or they used a Philips Respironics test machine, or it may be both. Get your detailed report and post it redacted here. I've used the ResMed AirCurve 10 ASV myself and it will successfully tackle Central and Obstructive events. The two years I could use mine I had treated reports between AHI 0-3. ASV isn't for me though due to increasing respiratory disease.
Dave

OSCAR
Standard OSCAR Chart Order
Mask Primer
Dealing With A DME
Soft Cervical Collar Wiki
INFORMATION ON APNEA BOARD FORUMS OR ON APNEABOARD.COM SHOULD NOT BE CONSIDERED MEDICAL ADVICE. ALWAYS SEEK THE ADVICE OF A PHYSICIAN BEFORE SEEKING TREATMENT FOR MEDICAL CONDITIONS, INCLUDING SLEEP APNEA. INFORMATION POSTED ON THE APNEA BOARD WEBSITE AND FORUMS ARE PERSONAL OPINION ONLY AND NOT NECESSARILY A STATEMENT OF FACT.
Post Reply Post Reply
#3
RE: Sleep test Titration with ASV
(04-05-2022, 12:25 PM)1Joyous1 Wrote: From what I understand, the Resmed ASV doesn’t record centrals because it stops them in their tracks. Why didn’t my sleep test do the same?

Was your sleep test done without xPAP?

ASV was originally designed to treat "chain centrals"--  central apnea begets hyperventilation begets central apnea etc.  The ASV ameliorates this by gentle respiration through the apnea and little to no support during the spontaneous breathing until the chain breaks.  These are forms of "central apnea".

So then people started to use it for "central apneas" (singular).  And central apneas are often normal phenomena.  A person has a central apnea, then ASV hammers it with a few breaths;  the machine says "Oh look breaths" so doesn't score an apnea; meanwhile the patient (remember her?) is still stuck with the central apnea, although it's decorated with some machine breaths.  Oscar, part of this conspiracy, dutifully reports AHI = 0 and everybody is happy--  ResMed has $$$, MD has $$$, DME has $$$, forum members who win the race to say "You need an ASV cause the word central came up!" are happy, and the patient is sitting there wondering why they still have sleep issues.

Oh.

I guess not everyone is happy.
Post Reply Post Reply
#4
RE: Sleep test Titration with ASV
I knew you would want that and as soon as I learn how on this Mac, I will. Dielaughing
Post Reply Post Reply






Donate to Apnea Board  
#5
RE: Sleep test Titration with ASV
test results


Attached Files Thumbnail(s)
           
Post Reply Post Reply
#6
RE: Sleep test Titration with ASV
continued... it's a shame that the lab and dr are getting the bucks but I look to you guys for answers. I can see who accesses MyChart and they, (RespTherapist and Dr) are still going in the file today.


Attached Files Thumbnail(s)
           
Post Reply Post Reply
#7
RE: Sleep test Titration with ASV
Is there a graph showing the location of the PLMs?

268 spontaneous arousals is a LOT.
Post Reply Post Reply






Donate to Apnea Board  
#8
RE: Sleep test Titration with ASV
Calling this sleep study a "titration" when they only appear to have used a single setting is a bit disingenuous. More of an ASV trial with attended PSG.

Are your doctors doing anything to try and address the PLMs?

My observation of my own sleep data is that you have a leg movement (twitch, etc) which triggers arousal and brief hyperventilation (at least a big breath or two) which results in hypocapnia (as CO2 is washed out) and CA events. Having an ASV force you to breath at this point is likely to cause further arousal and sleep disruption. It's not just about AHI!

A graph with LM and heart rate would be useful...
Post Reply Post Reply
#9
RE: Sleep test Titration with ASV
This isn't much of a Titration process. Only a single setting tried the whole time. Lazy or incompetent.
Dave

OSCAR
Standard OSCAR Chart Order
Mask Primer
Dealing With A DME
Soft Cervical Collar Wiki
INFORMATION ON APNEA BOARD FORUMS OR ON APNEABOARD.COM SHOULD NOT BE CONSIDERED MEDICAL ADVICE. ALWAYS SEEK THE ADVICE OF A PHYSICIAN BEFORE SEEKING TREATMENT FOR MEDICAL CONDITIONS, INCLUDING SLEEP APNEA. INFORMATION POSTED ON THE APNEA BOARD WEBSITE AND FORUMS ARE PERSONAL OPINION ONLY AND NOT NECESSARILY A STATEMENT OF FACT.
Post Reply Post Reply
#10
RE: Sleep test Titration with ASV
It was a Phillips Respironics Machine. The respiratory therapist and I were talking about all of the hospital’s ventilation machines being recalled and then Covid hit. They were scrambling to get exterior filters because they needed every vent they could get their hands on.
Post Reply Post Reply






Donate to Apnea Board  


Possibly Related Threads...
Thread Author Replies Views Last Post
  Sleep Test Results - APAP starting settings? Quarky68 2 115 05-20-2022, 11:52 AM
Last Post: Quarky68
  [Treatment] Recently diagnosed via at-home test mimpol 7 374 05-15-2022, 11:20 AM
Last Post: Dormeo
  Is a oxygen level a sufficient test of healthy sleeping? camper2 0 169 05-03-2022, 02:07 PM
Last Post: camper2
  Steep study w/ titration last night S.L. Ping Beauty 0 93 04-30-2022, 12:52 PM
Last Post: S.L. Ping Beauty
  Titration results - Should I be mad? ShallowBreather 13 763 04-25-2022, 10:03 AM
Last Post: Crimson Nape
  [Diagnosis] Round 2 Sleep Test pearlpearl 107 2,060 04-21-2022, 10:21 AM
Last Post: Geer1
  AHI increase? UARS Titration help? TinyRussia 23 525 04-18-2022, 11:22 AM
Last Post: TinyRussia


New Posts   Today's Posts






About Apnea Board

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