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

Resmed autoset s9 vs. s8 events?
#1
Resmed autoset s9 vs. s8 events?
I've recently started using an s9; had been using an s8.
My AI displays approx .2 on either. However, on the s9 AHI is always reported as the same as AI (e.g., no hyp's); the s8 typically reported AHI in the vicinity of 1.2. Different event criteria, hire effective, or??
Post Reply Post Reply



Donate to Apnea Board  
#2
RE: Resmed autoset s9 vs. s8 events?
Same here. Five years on an S8 and AHI averaged 4.0. Switched to an S9 and AHI is now averaging 0.3, most consisting of centrals. Better treatment or different way of measuring events, who knows?
Post Reply Post Reply
#3
RE: Resmed autoset s9 vs. s8 events?
It is my understanding that the software innards of the machines changed a lot from the S8s to the S9s and are better able to determine what is what and when. Meaning the S9 would be more accurate.
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.




Post Reply Post Reply
#4
RE: Resmed autoset s9 vs. s8 events?
(11-09-2013, 01:21 PM)hobbs Wrote: Better treatment or different way of measuring events, who knows?
Maybe bit of both. Two different algorithm, S8 autoset does not increase pressure above 10 cm H2O when an apnea detected nor respond to hypopnea to avoid falsely responding to central hypopnea

Post Reply Post Reply



Donate to Apnea Board  
#5
RE: Resmed autoset s9 vs. s8 events?
(11-09-2013, 07:41 PM)zonk Wrote:
(11-09-2013, 01:21 PM)hobbs Wrote: Better treatment or different way of measuring events, who knows?
Maybe bit of both. Two different algorithm, S8 autoset does not increase pressure above 10 cm H2O when an apnea detected nor respond to hypopnea to avoid falsely responding to central hypopnea

I agree. These machines continue to get smarter with each generation.

Admin Note:
JustMongo passed away in August 2017
Click HERE to read his Memorial Thread

~ Rest in Peace ~
Post Reply Post Reply
#6
RE: Resmed autoset s9 vs. s8 events?
I think the difference in readings is in the borderline apnea events. Every machine probably properly records the events where you completely stop breathing for long periods of time. The uncertainty is when you don't stop breathing completely. There's some uncertainty in determining what percent your breathing slows down and how long before you draw the line and say the apnea is over.

The important point is that the difference in AHI numbers may not really mean that much, because it's not the "strong" and long apneas that are being measured differently.
Get the free SleepyHead software here.
Useful links.
Click here for information on the main alternative to CPAP.
If it's midnight and a DME tells you it's dark outside, go and check it yourself.
Post Reply Post Reply


Possibly Related Threads...
Thread Author Replies Views Last Post
  Interpreting non apneic flow rate events logit 0 110 01-08-2019, 11:07 AM
Last Post: logit
  Broke my Resmed 10 autoset isuckatsleeping 3 266 12-24-2018, 03:48 PM
Last Post: FifthAvenue
  [CPAP] Obtaining a Clinical Manual fot ResMed AirSense 10 AutoSet biyahero 3 204 12-22-2018, 10:04 PM
Last Post: biyahero
  [Diagnosis] New to CPAP therapy. Worried about CA events T818 2 272 12-22-2018, 02:33 AM
Last Post: T818
  events per night Kacie 30 933 12-09-2018, 12:54 PM
Last Post: Amdx64
  ResMed AirSense AutoSet 10 powercord Big Guy 10 349 12-03-2018, 06:14 PM
Last Post: Big Guy
  Reading ResMed S9 Autoset display ShoshTrvls 3 209 11-05-2018, 01:11 PM
Last Post: yankees123


New Posts   Today's Posts






About Apnea Board

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