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

I think there's a problem with IPAP statistics in ResScan
#1
I'm shortly to see my sleep doc. He likes the ResScan statistics summary. I hardly ever use ResScan as I think Sleepyhead is so, so much better.

So I've just looked at my statistics résumé for both programmes, to print out and take with me to the appointment.

Looking at all my 122 days on ASV:

Total hours used, average daily usage, days of use - concordance between ResScan and SH.

Average AHI SH 0.7, ResScan 0.4 - but that is not an important difference.

However - ResScan gives maximum IPAP at 17.2, whereas SH statistics, SH and ResScan bar charts show it to be 23.8 (ResScan bar chart) or 25.0 (SH bar charts and statistics).

Unless all my wave form charts are wrong, 25.0 is the correct max IPAP over my last 122 days. So why is ResScan reporting the max at only 17.2?

Anyone else seen this? And it makes me wonder if some other ResScan summary stats may be wrong.

...............................................................................................
My pressures this week: Auto-ASV 11-14, PS 3-10
Post Reply Post Reply
#2
I have a similar issue. The difference is not so great as your with IPAP but is reasonably large with EPAP. In both cases the ResScan statistics record a maximum lower than the ResScan bar charts or SleepyHead. I notice also that the statistics page gives my maximum leak as 15.0 while the barchart shows a couple off the scale over 150. What I suspect is happening is that ResScan is reporting a mean or average maximum rather than the single peak reading. The average maximum would probably be a more useful number for the doctor to consider.

I'm only guessing at this - The ResScan manual says (of statistics generally): Maximum: The maximum value recorded during the selected range.
DeepBreathing
Apnea Board Moderator
www.ApneaBoard.com


Bed

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
#3
(03-24-2016, 07:09 AM)DeepBreathing Wrote: I have a similar issue. The difference is not so great as your with IPAP but is reasonably large with EPAP. In both cases the ResScan statistics record a maximum lower than the ResScan bar charts or SleepyHead. I notice also that the statistics page gives my maximum leak as 15.0 while the barchart shows a couple off the scale over 150. What I suspect is happening is that ResScan is reporting a mean or average maximum rather than the single peak reading. The average maximum would probably be a more useful number for the doctor to consider.

I'm only guessing at this - The ResScan manual says (of statistics generally): Maximum: The maximum value recorded during the selected range.

Thanks, that does makes mathematical sense - Resmed must be taking an 'average maximum' for the statistics summary. My leak info is also discordant and could be explained, I think (quick look at the numbers), by them doing the same thing with leak stats.

But as you state, in fact ResScan's own definition of 'maximum' means something else.

Naughty ResScan! - a Big Bug...

............................................................................................
My pressures this week: Auto-ASV. EPAP 11-14. PS 3-10



Post Reply Post Reply




Possibly Related Threads...
Thread Author Replies Views Last Post
  ResScan compatability cm57 3 121 Yesterday, 01:20 AM
Last Post: srlevine1
  SleepyHead Graph display problem Joe Fox 7 137 03-22-2017, 11:11 AM
Last Post: RichardVT
  ResScan 5.7 not displaying AHI data mb21784 1 232 02-25-2017, 04:47 PM
Last Post: Crimson Nape
Arrow [Admin Note] ResScan - [version 5.7] SuperSleeper 70 13,265 02-11-2017, 03:11 PM
Last Post: MortR
  ResMed s9 SD card unrecognized by ResScan or S'Head krebb21 3 285 02-01-2017, 04:10 AM
Last Post: TBMx
  resscan software download sdouros 7 780 01-30-2017, 08:14 PM
Last Post: Beej
Question Is "pressure relief" in my SleepyHead statistics the same as EPR/Flux? geekbearinggifts 25 928 01-28-2017, 03:35 AM
Last Post: geekbearinggifts

Forum Jump:

New Posts   Today's Posts




About Apnea Board

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

For any more information, please use our contact form.