Search found 59 matches

by RationalEntropy
Sat Feb 18, 2012 3:59 pm
Forum: CPAP and Sleep Apnea Message Board
Topic: Simple Question about the BPM and TI on BiPAP ASV System One
Replies: 10
Views: 7416

Re: Simple Question about the BPM and TI on BiPAP ASV System One

Thank you all for the helpful replies, and support. The minor tweaks I've made had to do with expanding the range of EPAP and the lower end of the PS, and even that was in the range of what I had been prescribed from the sleeping titration. I also did look at my BPM rate, and the setting initially w...
by RationalEntropy
Sat Feb 18, 2012 9:14 am
Forum: CPAP and Sleep Apnea Message Board
Topic: Simple Question about the BPM and TI on BiPAP ASV System One
Replies: 10
Views: 7416

Re: Simple Question about the BPM and TI on BiPAP ASV System One

Thank you very much for your reply.

One more thing: generally speaking the number of breaths per minute (BPM) is set to be 2 less than the patient's average BPM, right?
by RationalEntropy
Fri Feb 17, 2012 6:26 pm
Forum: CPAP and Sleep Apnea Message Board
Topic: Simple Question about the BPM and TI on BiPAP ASV System One
Replies: 10
Views: 7416

Simple Question about the BPM and TI on BiPAP ASV System One

Since I have the Philips Auto SV Advanced System One model and all of the sleep lab titration guides are for Resmed I have a few questions. 1. Does the Ti setting for the System One correspond to a maximum inspiration time, a minimum inspiration time, or other? 2. Does the Backup BPM setting corresp...
by RationalEntropy
Fri Feb 17, 2012 9:49 am
Forum: CPAP and Sleep Apnea Message Board
Topic: Seeking Temporary Solution for Bruxism/Jaw clenching
Replies: 10
Views: 4412

Seeking Temporary Solution for Bruxism/Jaw clenching

I realize that sporting goods places sale mouth pieces. I was wondering if someone could recommend one, as it may be a while before I can make a trip to the dentist. Also, if anyone has used a mouth guard what is 1) the probability of swallowing it/choking on it, 2) Does it negatively affect AHI for...
by RationalEntropy
Fri Feb 17, 2012 9:44 am
Forum: CPAP and Sleep Apnea Message Board
Topic: Powerlifting Community's Article on OSA
Replies: 1
Views: 751

Powerlifting Community's Article on OSA

This article may have a few misconceptions, many of which are addressed in the comments (such as OSA only being weight dependent, which we know not to be true). Regardless I figured I would share this: http://articles.elitefts.com/articles/rehabilitation/big-strong-powerful-and-dying%E2%80%A6/. Ther...
by RationalEntropy
Thu Feb 16, 2012 9:59 am
Forum: CPAP and Sleep Apnea Message Board
Topic: OT: Low Carb eating--What is there to eat?!
Replies: 97
Views: 18560

Re: OT: Low Carb eating--What is there to eat?!

There have been some good contributions here, so, let's see if I can contribute anything else worthwhile. I'm not sure what regime you are working in (less than 50 grams of carbs, less than 100, or what). If you are aiming for ketosis a stricter diet is needed (prone to vary from person to person, b...
by RationalEntropy
Tue Feb 14, 2012 11:08 am
Forum: CPAP and Sleep Apnea Message Board
Topic: cm H2O is Displacement, Not Pressure
Replies: 25
Views: 5652

Re: cm H2O is Displacement, Not Pressure

I'm still early in my therapy, and am still prone to moments of absent mindedness. It was a very obvious error on my part, as one can easily draw a relationship between a linear displacement and pressure. See mmHg, for example. I was wanting to bust out the fluid mechanics, determine flux, etc. and ...
by RationalEntropy
Wed Feb 08, 2012 7:25 pm
Forum: CPAP and Sleep Apnea Message Board
Topic: cm H2O is Displacement, Not Pressure
Replies: 25
Views: 5652

Re: cm H2O is Displacement, Not Pressure

Thank you for your input, all. I was probably overreacting about being incorrect/poorly stating my observations. It is all about learning, and at times it is more difficult to discern the tone that a person is using through a computer.
by RationalEntropy
Wed Feb 08, 2012 5:10 pm
Forum: CPAP and Sleep Apnea Message Board
Topic: Centrals: When to move to BiPAP?
Replies: 20
Views: 4517

Re: Centrals: When to move to BiPAP?

Did you guys have to go back to the sleep lab when you switched to bipap or ASV? I was recently diagnosed with secondary PAH and my AHI are in the 15-17 range and my last oximetry was >66.7% of the night with an o2 sat below 90% and I was down to 60% at times. 2 months ago only 3% of the night was ...
by RationalEntropy
Wed Feb 08, 2012 5:06 pm
Forum: CPAP and Sleep Apnea Message Board
Topic: cm H2O is Displacement, Not Pressure
Replies: 25
Views: 5652

Re: cm H2O is Displacement, Not Pressure

Perhaps I've over and under evaluated this. It is perhaps as much of a measure of pressure as mmHg, but it drives me crazy that it seems like a deliberately esoteric unit. It could also be that I was previously referring to 1-d displacement, a corresponding 1-d force, and a cross-sectional area, to ...
by RationalEntropy
Wed Feb 08, 2012 1:03 pm
Forum: CPAP and Sleep Apnea Message Board
Topic: cm H2O is Displacement, Not Pressure
Replies: 25
Views: 5652

Re: cm H2O is Displacement, Not Pressure

No qualms with water, or the metric system, just ranting about this point. Yes, displacement is proportional to pressure, but it is also proportional to resisting pressures, that is displacement varies in different tissues. Blah blah blah Mutatis mutandis. . There was an incompetent TA during underg...
by RationalEntropy
Wed Feb 08, 2012 9:22 am
Forum: CPAP and Sleep Apnea Message Board
Topic: cm H2O is Displacement, Not Pressure
Replies: 25
Views: 5652

cm H2O is Displacement, Not Pressure

As a man of physics I would like to say that cm H2O are rather counter-intuitive units for pressure. In fact, any physics textbook worth its weight in working cpap parts will define pressure as force per unit area. Cm H2O is a displacement of water given a particular pressure (the actual pressure ca...
by RationalEntropy
Wed Feb 08, 2012 9:19 am
Forum: CPAP and Sleep Apnea Message Board
Topic: Clinician Locks on xPAPs
Replies: 35
Views: 6401

Re: Clinician Locks on xPAPs

I use data, and make minor tweaks, as I assume many do. My AHI is NOW < 2 (yes, almost exclusively hypopneas, with maybe a central per week), and feel subjectively better. Untreated I only had hypopneas, then after failure to tolerate cpap, and bipap I was prescribed an ASV (no need for extra oxygen...
by RationalEntropy
Mon Feb 06, 2012 10:23 pm
Forum: CPAP and Sleep Apnea Message Board
Topic: Looks Like I'm Going to be a New ASV User
Replies: 12
Views: 3492

Re: Looks Like I'm Going to be a New ASV User

Welcome, just as others have mentioned: it is not the best club to join, but since circumstances warrant it, welcome. During the last couple of months my productivity in the workplace, socially, creatively, intellectually, physically, etc. has improved. I realized I wasn't running on all of my cylin...
by RationalEntropy
Sun Feb 05, 2012 11:49 pm
Forum: CPAP and Sleep Apnea Message Board
Topic: Centrals: When to move to BiPAP?
Replies: 20
Views: 4517

Re: Centrals: When to move to BiPAP?

I had a very similar experience. Well, here is a short history: my sleep study's PSG gave me the following results: Diagnostic AHI (Non REM): 21.6 AHI (REM): 27 SaO2 nadir: 90% All Hypopneas CPAP AHI (Non REM): 11.84 AHI (REM): 8.47 SaO2 Nadir: 89% Again, hypopneas Bipap AHI (Non REM): 0 AHI (REM): ...