Post Reply 
Link for Zonk
Author Message
SleepyWabbit Offline

Preferred Members

Posts: 40
Joined: Jun 2015

Machine: DS560S (PRS1 REMStar Auto)
Mask Type: Full face mask
Mask Make & Model: Mirage Quattro
Humidifier: DS6H
CPAP Pressure: 12cm
CPAP Software: SleepyHead

Other Comments:

Sex: Male
Location: descensus in cuniculi cavum

Post: #11
RE: Link for Zonk
(06-17-2015 02:01 PM)quiescence at last Wrote:  
(06-17-2015 06:47 AM)AlanE Wrote:  I've used it a lot since my memory stinks.

me too, bud.

QAL

Is it a memory leak?

ba dum tsh
06-17-2015 02:30 PM
Find all posts by this user Post Reply Quote this message in a reply

Donate to Apnea Board
PaytonA Offline
Wiki Editor
Monitors

Posts: 3,005
Joined: Dec 2013

Machine: ResMed S9 VPAP Auto
Mask Type: Full face mask
Mask Make & Model: Resmed Mirage Quattro
Humidifier: H5i(distilled-top up)
CPAP Pressure: VAuto MinE14.0 MaxI 20.6 PS4.0
CPAP Software: ResScan SleepyHead

Other Comments:

Sex: Male
Location: Orange County,California

Post: #12
RE: Link for Zonk
Memory leak is a definite problem for me. Big Grin Does anyone know how it is calculated? SHa_biggrin5
06-22-2015 10:25 AM
Find all posts by this user Post Reply Quote this message in a reply
pholynyk Offline

Advisory Members

Posts: 306
Joined: Mar 2015

Machine: ResMed AirSense 10 APAP
Mask Type: Full face mask
Mask Make & Model: Amara View
Humidifier: included
CPAP Pressure: 11-17
CPAP Software: SleepyHead

Other Comments:

Sex: Male
Location: Ontario, Canada

Post: #13
RE: Link for Zonk
Just guessing... neurons per day? or maybe killo-neurons per month?

I can't remember...
06-22-2015 10:54 AM
Find all posts by this user Post Reply Quote this message in a reply

Donate to Apnea Board
PaytonA Offline
Wiki Editor
Monitors

Posts: 3,005
Joined: Dec 2013

Machine: ResMed S9 VPAP Auto
Mask Type: Full face mask
Mask Make & Model: Resmed Mirage Quattro
Humidifier: H5i(distilled-top up)
CPAP Pressure: VAuto MinE14.0 MaxI 20.6 PS4.0
CPAP Software: ResScan SleepyHead

Other Comments:

Sex: Male
Location: Orange County,California

Post: #14
RE: Link for Zonk
That sounds like it might be the leakage units but how is it calculated?? Or are we getting into Way Off Topic stuff here?
06-22-2015 01:09 PM
Find all posts by this user Post Reply Quote this message in a reply
SleepyWabbit Offline

Preferred Members

Posts: 40
Joined: Jun 2015

Machine: DS560S (PRS1 REMStar Auto)
Mask Type: Full face mask
Mask Make & Model: Mirage Quattro
Humidifier: DS6H
CPAP Pressure: 12cm
CPAP Software: SleepyHead

Other Comments:

Sex: Male
Location: descensus in cuniculi cavum

Post: #15
RE: Link for Zonk
It looks like there are studies that certain sections of the brain that control memory actually shrink over time due to loss of oxygen associated with sleep apnea.

Maybe if we could figure out a way to measure the weight/size of our white matter, grey matter and mammillary bodies (also a part of the brain) over time. The question is, if my brain is shrinking, where is the matter leaking? Is that why I keep having a runny nose? At least now I have an excuse for my faulty memory. I'm looking forward to getting my xPAP and starting therapy, and maybe improving my memory.

Some interesting links I came across out of curiosity:
http://www.ncbi.nlm.nih.gov/pubmed/18486338
http://www.ncbi.nlm.nih.gov/pubmed/20861295
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC3242693/
http://news.health.com/2008/06/11/sleep-apnea-damage-brain-memory/
http://www.sciencedaily.com/releases/2014/09/140908135438.htm

And to think this started off as a joke...
Now if only we had that home MRI scanner to go with the openEEG project

//sorry if I hijacked the thread and took it way off in left field Thinking-about
(This post was last modified: 06-22-2015 03:45 PM by SleepyWabbit.)
06-22-2015 03:43 PM
Find all posts by this user Post Reply Quote this message in a reply

Donate to Apnea Board
PaytonA Offline
Wiki Editor
Monitors

Posts: 3,005
Joined: Dec 2013

Machine: ResMed S9 VPAP Auto
Mask Type: Full face mask
Mask Make & Model: Resmed Mirage Quattro
Humidifier: H5i(distilled-top up)
CPAP Pressure: VAuto MinE14.0 MaxI 20.6 PS4.0
CPAP Software: ResScan SleepyHead

Other Comments:

Sex: Male
Location: Orange County,California

Post: #16
RE: Link for Zonk
Here, from Resmed, is part of the reason that designed vent rate is not used for unintentional leak calculations. The following is a quote from just above the Vent Rate vs Mask Pressure chart of the F10 user guide.

Quote:The mask contains passive venting to protect
against rebreathing. As a result of manufacturing
variations, the vent flow rate may vary.

Variations in vent flow occur as a result of use also. Mucous can get in the vent and harden changing the vent area and flow. Even water can, as evidenced by the reduction in flow of the P10 masks that can occur from trapped water. There are several threads on this in this forum.

The mask type designation is used to adjust for pressure drop due to the different mask types not to calculate unintentional leak rates.

Best Regards,

PaytonA
06-26-2015 09:57 AM
Find all posts by this user Post Reply Quote this message in a reply
zonk Offline

Advisory Members

Posts: 7,908
Joined: Feb 2012

Machine: A10 AutoSet
Mask Type: Nasal mask
Mask Make & Model: Activa LT
Humidifier: Integrated /ClimateLineAir
CPAP Pressure: 9/13
CPAP Software: ResScan

Other Comments: CPAP since Nov 2010

Sex: Male
Location: Australia

Post: #17
RE: Link for Zonk
These two threads ought be combined together
http://www.apneaboard.com/forums/Thread-...#pid119570
06-26-2015 04:29 PM
Find all posts by this user Post Reply Quote this message in a reply

Donate to Apnea Board
vsheline Offline

Advisory Members

Posts: 1,907
Joined: Jul 2012

Machine: S9 VPAP Adapt (USA Model# 36007, not better 36037 or 36067)
Mask Type: Full face mask
Mask Make & Model: F10 or SimPlus w/ 2Liners. MirageQuatro & Gecko gel pad
Humidifier: H5i
CPAP Pressure: 15 EPAP, PS 5-10
CPAP Software: ResScan

Other Comments: Marfan Syndrome, chronic bradycardia, occasional Cheyne-Stokes Respiration

Sex: Male
Location: California, USA

Post: #18
RE: Link for Zonk
(06-16-2015 11:06 PM)PaytonA Wrote:  
(06-16-2015 05:36 PM)zonk Wrote:  Leak: An estimate of the total flow of air escaping due to mouth and mask leaks. It is derived by analyzing the inspiratory and expiratory airflows, together with the expected mask vent flows. High or changing leak rates may affect the accuracy of other measurements.

...

The statement, "It is derived by analyzing the inspiratory and expiratory airflows, together with the expected mask vent flows." seems bogus to me. If you use the expected vent rate and the actual flow rate (measured) that would be all of the data you would need to do a quick subtraction to calculate the leak rate. You would not need inspiratory and expiratory airflows.

Hi PaytonA,

Granting that the methods ResMed now uses for estimating the intentional vent rate may have evolved away from the simple explanation given in the quote, I would like to address only the intended meaning of the quote from ResMed:

In the quote "the inspiratory and expiratory airflows" referred, I think, to the total airflows in the circuit (humidifier, hoses, etc) between the machine and the mask.

The expected vent rate would have been a function of the pressure reaching the mask. The machines measure the pressure at the machine, and they would have needed to calculate/estimate the pressure at the mask.

Airflows in the circuit (and therefore the pressure lost across the circuit before reaching the mask) are larger during inspiration than during expiration.

So, during inspiration the inspiratory airflows were used to calculate the pressure reaching the mask, and during expiration the expiratory airflows were used.

Membership in the Advisory Member group should not be understood as in any way implying medical expertise or qualification for advising Sleep Apnea patients concerning their treatment. The Advisory Member group provides advice and suggestions to Apnea Board administrators and staff on matters concerning Apnea Board operation and administrative policies - not on matters concerning treatment for Sleep Apnea. I think it is now too late to change the name of the group but I think Voting Member group would perhaps have been a more descriptive name for the group.
(This post was last modified: 06-28-2015 12:08 AM by vsheline.)
06-27-2015 11:54 PM
Find all posts by this user Post Reply Quote this message in a reply
Post Reply 


Possibly Related Threads...
Thread: Author Replies: Views: Last Post
  [Equipment] I'm going to the Zonk tank justMongo 14 2,769 10-11-2014 02:29 PM
Last Post: PaytonA
Gross Resmed s9 I want live data link to computer vicpete 7 1,802 08-12-2014 09:07 AM
Last Post: robysue
  Link for setting pressure on Resmed Autoset S9 Gabby 47 8,259 08-09-2014 06:36 AM
Last Post: Gabby
  I feel like I lost the fight last nigjht! new link tired57 11 2,527 04-01-2014 06:45 PM
Last Post: robysue
  Marijuana vs Apnea link cowboy1970 17 4,570 02-10-2014 02:58 AM
Last Post: Sleepster
  Data link question justMongo 10 2,690 09-12-2013 11:16 AM
Last Post: justMongo
  [News] Study Finds Link Between Sleep Apnea and Postoperative Delirium ApneaNews 3 3,288 04-12-2012 07:38 PM
Last Post: PaulaO2

Forum Jump:

Who's Online (Complete List)