Recommendation for a Travel Machine Please S8 vs. 420E
Re: I'm not at all happy with my 420E
Snork,snork1 wrote:
<snip>
I put up with the whistle because my DME said PB wouldn't do anything about it. I finally convinced the DME to send it back and PB was extremely responsive, ended up relacing the machine, did this quickly and the new one is VERY quiet. Not quite as silent as my dead quiet Remstar Auto, but the very slight whooshing sound is well worth the trade-off since for unknown reasons I seem to get significantly better results (according to the software) on the 420E than the Remstar Auto.
<snip>
Re the apparent better results, I believe it is the Encore software and what it reports from the machine that may be making the real difference. I do believe the Remstar AUTO w cflex, is one of the really good AUTOs available.
Perhaps you are aware for feeling different as well ? - if so then that would support the 420E delivering better therapy.
Cheers
DSM
xPAP and Quattro std mask (plus a pad-a-cheek anti-leak strap)
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Guest
Here's a model of bilevel ventilator that at least a few members of this message board happen to own:
http://www.newsrx.com/newsletters/Medic ... 327QW.html
The respiratory profession has considered bilevel machines to be "noninvasive ventilators" for years. Why? Because the pressure difference between IPAP and EPAP yields support to the respiratory drive for many patients. This is referred to as pressure support ventilation or simply PSV. And, of course, that is not to mention when bilevel ventilation is used with a timed backup rate. To the best of my knowledge the medical and scientific communities don't know precisely why an IPAP/EPAP differential lends the respiratory drive support. Likely Herring Breur stretch receptors throughout the respiratory tract come into play as the IPAP/EPAP stretch receptors are literally massaged by bilevel's IPAP/EPAP pressure differential. However, that is just a guess work on my part.
The fact that APAP machines directly trigger in direct response to apneas is very well documented in manufacturer literature including patent descriptions.
Regarding whether APAP machines respond to complete obstructions (complete cessation of flow). The manufacturers and patent descriptions are all under the impression that they do. All modern APAPs by design trigger on snore, flow limitation, and apneas. Each model triggers on snore and flow limitation in an attempt to prevent apneas. Each model also triggers on apneas in an attempt to clear the apnea via static inflation of the respiratory tract itself. However, an APAP machine will not trigger on apneas under certain circumstances. Those circumstances include but are not limited to: 1) settling period is in effect, 2) a breathing normalization software controller is in effect, and 3) central apnea probability criteria has been met. The Remstar Auto infers this latter probability via three failed pressure increment attempts. The Resmed Spirit addresses central apnea probability by simply limiting pressure to all apneas at 10 cm. The 420e infers central apnea probability via open airway cardiac oscillation coupled with a provider-controlled command-on-apnea pressure limit.
This has been a very interesting and thought provoking discussion for many here. Thanks to all parties involved for a very good read!
http://www.newsrx.com/newsletters/Medic ... 327QW.html
The respiratory profession has considered bilevel machines to be "noninvasive ventilators" for years. Why? Because the pressure difference between IPAP and EPAP yields support to the respiratory drive for many patients. This is referred to as pressure support ventilation or simply PSV. And, of course, that is not to mention when bilevel ventilation is used with a timed backup rate. To the best of my knowledge the medical and scientific communities don't know precisely why an IPAP/EPAP differential lends the respiratory drive support. Likely Herring Breur stretch receptors throughout the respiratory tract come into play as the IPAP/EPAP stretch receptors are literally massaged by bilevel's IPAP/EPAP pressure differential. However, that is just a guess work on my part.
The fact that APAP machines directly trigger in direct response to apneas is very well documented in manufacturer literature including patent descriptions.
Regarding whether APAP machines respond to complete obstructions (complete cessation of flow). The manufacturers and patent descriptions are all under the impression that they do. All modern APAPs by design trigger on snore, flow limitation, and apneas. Each model triggers on snore and flow limitation in an attempt to prevent apneas. Each model also triggers on apneas in an attempt to clear the apnea via static inflation of the respiratory tract itself. However, an APAP machine will not trigger on apneas under certain circumstances. Those circumstances include but are not limited to: 1) settling period is in effect, 2) a breathing normalization software controller is in effect, and 3) central apnea probability criteria has been met. The Remstar Auto infers this latter probability via three failed pressure increment attempts. The Resmed Spirit addresses central apnea probability by simply limiting pressure to all apneas at 10 cm. The 420e infers central apnea probability via open airway cardiac oscillation coupled with a provider-controlled command-on-apnea pressure limit.
This has been a very interesting and thought provoking discussion for many here. Thanks to all parties involved for a very good read!
I, too, am looking for a second machine for travel. My mome machine is the Remstar Pro 2, too big for travel.
After reading these posts, and comparing size and weight I decided on the "M" series Remstar with humidifier. My departure date is May 6, so I am trying to locate a dealer with the humidifier ready to ship. Unfortunately the sites I visited state they will be shipped in the future. Can anyone post a site link for a dealer with humidifiers in stock?
After reading these posts, and comparing size and weight I decided on the "M" series Remstar with humidifier. My departure date is May 6, so I am trying to locate a dealer with the humidifier ready to ship. Unfortunately the sites I visited state they will be shipped in the future. Can anyone post a site link for a dealer with humidifiers in stock?
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| Machine: AirSense™ 10 CPAP Machine with HumidAir™ Heated Humidifier |
| Mask: AirFit™ P30i Nasal Pillow CPAP Mask with Headgear Starter Pack |
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Brent Hutto
- Posts: 181
- Joined: Thu Mar 02, 2006 12:55 pm
I do not believe the M-series humidifier is shipping from Respironics yet. Send an E-mail to Respironics and ask to be sure.gerry wrote:My departure date is May 6, so I am trying to locate a dealer with the humidifier ready to ship. Unfortunately the sites I visited state they will be shipped in the future. Can anyone post a site link for a dealer with humidifiers in stock?
The best laid schemes o' mice and men
Gang aft a-gley;
And leave us naught but grief and pain
For promised joy
--Robert Burns
Gang aft a-gley;
And leave us naught but grief and pain
For promised joy
--Robert Burns