CompSA, Hypoventilation, PLMs, Bradycardia and Hypotension?

Muffy wrote:THE -HCO3!!! BICARB!!! BI-CARB!!!!!!!! IF I'VE ASKED YOU ONCE I'VE ASKED YOU A MILLION TIMES, GET ME A NEW MF BICARB!!!!

Happy Mother's Day.

Ok, ok. Don't go bursting a blood vessel or you might pass out into your Mother's Day soup. Bloods are on the way...just wanted to know what gadget(s) you might plug me in to.

p.s. while you've got the beast apart, why don't you swap in a taller gear set and get that drum really humming?

-SWS wrote:One potentially useful experiment, blizzardboy, might be to eventually use your ASV data set to compare week-long data runs of each modality: 1) your optimal ASV settings, versus 2) fixed pressure set at your optimal obstructive-addressing EEP.

Certainly would be interesting to see what my body does over a longer period with just OSA treated.

blizzardboy wrote:...just wanted to know what gadget(s) you might plug me in to.

I think closer scrutiny of your existing PSGs would be in order, looking at sleep continuity (EEG) and that breathing pattern. I don't think there's a big difference between then and now (consequently no strong reason you could offer for a new PSG).

blizzardboy wrote:while you've got the beast apart, why don't you swap in a taller gear set and get that drum really humming?

blizzardboy wrote:Don't go bursting a blood vessel or you might pass out into your Mother's Day soup.

You keep working on your sleep quality and leave the comedy to me.

Muffy

Muffy wrote:I think closer scrutiny of your existing PSGs would be in order, looking at sleep continuity (EEG) and that breathing pattern. I don't think there's a big difference between then and now (consequently no strong reason you could offer for a new PSG).

I can probably get copies of my PSGs from the sleep lab. They have commented to me in the past that I would not be able to read the PSG files as I don't have their software (Compumedics) but that they could possibly convert ever trace into ASCII. Out of interest, how big would the data files typically be for an 8-hour PSG?

blizzardboy wrote:Out of interest, how big would the data files typically be for an 8-hour PSG?

Depending on their sampling rates and # of channels, somewhere between 30 - 120 meg. If the video/sound is included, could be a GB.

Muffy

-SWS wrote:if the objective is to simply spot trends or coarse changes in basal CO2 ---in order to compare day CO2 trending versus night CO2 trending---then noninvasive measurement of EtCO2 via a portable capnometer should do just fine IMO.

Might see if my local library lends out portable capnometers so that I can find out once and for all what my daily EtCO2 variation is...or maybe they sell them at [insert big shopping centre name]. No? Haven't consumers yet worked out the importance of daily EtCO2 measurements? Surely it will catch on and then we can all have a capnometer in our first aid kit. None on flea-Bay. Humph. Back on the CPAP to wait for my blood tests to return...

Muffy wrote:Depending on their sampling rates and # of channels, somewhere between 30 - 120 meg. If the video/sound is included, could be a GB.

Hi Muffy, Thanks for that. So one channel at-a-time ASCII is probably doable in a spreadsheet/graphing programme if the sampling rate is not too high? Cheers,

blizzardboy wrote:

Muffy wrote:Depending on their sampling rates and # of channels, somewhere between 30 - 120 meg. If the video/sound is included, could be a GB.

Hi Muffy, Thanks for that. So one channel at-a-time ASCII is probably doable in a spreadsheet/graphing programme if the sampling rate is not too high? Cheers,

Each EEG channel will be collected at 256 or 512 Hz, so I think that's going to be just one big mess.

Muffy

Muffy wrote:Each EEG channel will be collected at 256 or 512 Hz, so I think that's going to be just one big mess.

Ya dats alotta bits. All hail the microprocessor. Well, I'll at least ask for a copy of the raw data just in case someone wants to review my PSGs in the future.

blizzardboy wrote:I'll at least ask for a copy of the raw data just in case someone wants to review my PSGs in the future.

There is a movement to standardize PSGs to a common format (*.edf)(then all you need is an *.edf reader), and while Compumedics says it can read *.edf files, I don't see where they say that they can/will export that format (on the other hand, it doesn't say they can't).

Guess there's only one way to find out...

Muffy

Muffy wrote:

blizzardboy wrote:I'll at least ask for a copy of the raw data just in case someone wants to review my PSGs in the future.

There is a movement to standardize PSGs to a common format (*.edf)(then all you need is an *.edf reader), and while Compumedics says it can read *.edf files, I don't see where they say that they can/will export that format (on the other hand, it doesn't say they can't).

Guess there's only one way to find out...

Muffy

Muffy is the *.edf format you refer to this: http://www.edfplus.info/downloads/downl ... #downloads


???

blizzardboy wrote:

-SWS wrote:if the objective is to simply spot trends or coarse changes in basal CO2 ---in order to compare day CO2 trending versus night CO2 trending---then noninvasive measurement of EtCO2 via a portable capnometer should do just fine IMO.

Might see if my local library lends out portable capnometers so that I can find out once and for all what my daily EtCO2 variation is...or maybe they sell them at [insert big shopping centre name]. No? Haven't consumers yet worked out the importance of daily EtCO2 measurements? Surely it will catch on and then we can all have a capnometer in our first aid kit. None on flea-Bay. Humph. Back on the CPAP to wait for my blood tests to return...

I priced some out with a Shenzhen manufacturer. They wanted something like $AUD 800.

DSM

dsm wrote:I priced some out with a Shenzhen manufacturer. They wanted something like $AUD 800.

Thank Goodness for China! Still too pricey for me at this stage though. Cheers,

Rebecca R wrote:...is the *.edf format you refer to this: http://www.edfplus.info/downloads/downl ... #downloads

That should do it!

Muffy

Muffy wrote:I don't see where they say that they can/will export that format (on the other hand, it doesn't say they can't).

Guess there's only one way to find out...

Thanks for the tip on the .edf format, I'll ask the lab if they can export to that. Ask and you shall receive. Cheers,