Zero apneas ?

Just got back my tritration study. I was titrated at 9cm of water

I had zero apneas, zero hypopneas , zero snores at that pressure.

It is I think a strange study

CPAP - BILEVEL THERAPY
EVENT SUMMARY

Therapy (cm H2O) 4 5 6 7 8 9
Total Time (min.) 109.58 1.55 0.35 1.25 14.93 249.72
# Periods 1 1 1 1 1 1
Wake (%) 97.72 91.62 0.00 80.07 56.93 31.23
Stage 1 (%) 2.28 8.38 100.00 19.93 1.80 3.60
Stage 2 (%) 0.00 0.00 0.00 0.00 41.27 18.96
Stage 3 (%) 0.00 0.00 0.00 0.00 0.00 10.81
Stage 4 (%) 0.00 0.00 0.00 0.00 0.00 26.83
REM (%) 0.00 0.00 0.00 0.00 0.00 8.56
Movement (%) 0.00 0.00 0.00 0.00 0.00 0.00
# Arousals 0 0 0 0 0 1
Arousal Index 0.0 0.0 0.0 0.0 0.0 0.3
# Snore 0 0 0 0 0 0
Snore Index 0.0 0.0 0.0 0.0 0.0 0.0
AHI 0.0 0.0 0.0 0.0 0.0 0.0
# Obstructive 0 0 0 0 0 0
# Central 0 0 0 0 0 0
# Mixed 0 0 0 0 0 0
# Hypopnea 0 0 0 0 0 0
Total Respiratory Events 0 0 0 0 0 0
Mean NREM SaO2 (%) 97.3 97.0 95.7 97.8 96.1 95.9
Mean REM SaO2 (%) --- --- --- --- --- 96.5
Min NREM SaO2 (%) 96.0 97.0 95.0 95.0 94.0 94.0
Min REM SaO2 (%) --- --- --- --- --- 94.0
Position Supine (min.) 109.58 1.55 0.35 1.25 14.93 249.72
Position Non-supine (min.) 0.00 0.00 0.00 0.00 0.00 0.00

Respiratory data: 0 obstructive apneas, 0 hypopneas, 0 mixed apneas, 0 central apneas are noted. The average rate is 0.0 per hour (normal is less than 5). Supine rate is 0.0 per hour with a non-supine rate of 0 per hour. The non-REM rate was 0.0 per hour and the REM rate was 0.0 per hour. Minimum oxygen saturation with events is 96%. Total supine time is 181.5 min. (3.0 hrs.) with a non-supine time of 0.0 min.

The tech put me at 9 just about at the onset of sleep and left me there

What kind of study was that ?

sleepdeprived

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CPAPopedia Keywords Contained In This Post (Click For Definition): Arousal, CPAP, AHI, Hypopnea

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CPAPopedia Keywords Contained In This Post (Click For Definition): Arousal, CPAP, AHI, Hypopnea

Sleepdeprived wrote: What kind of study was that ?

A successful one?

In any case, it looks like it took you over two hours to get to a pressure of 9: 110 minutes at 4, 2 minutes at 5, almost no time at 6, 1 minute at 7, 15 minutes at 8. Then after more than two hours, you reached 9, where you stayed for over four hours because it worked perfectly and didn't need to go higher. Or am I mis-reading your numbers.

Sleepdeprived wrote: Therapy (cm H2O) 4 5 6 7 8 9

# Arousals 0 0 0 0 0 1
Arousal Index 0.0 0.0 0.0 0.0 0.0 0.3
# Snore 0 0 0 0 0 0
Snore Index 0.0 0.0 0.0 0.0 0.0 0.0
AHI 0.0 0.0 0.0 0.0 0.0 0.0
# Obstructive 0 0 0 0 0 0
# Central 0 0 0 0 0 0
# Mixed 0 0 0 0 0 0
# Hypopnea 0 0 0 0 0 0
Total Respiratory Events 0 0 0 0 0 0

Perhaps I'm missing something... According to the numbers why even go above 4 cm H2O??? you appear to have NO Apneas, Hypopneas, or anything even at 4 cm. Did they forget to hook something up?

Anonymous wrote:

Sleepdeprived wrote: What kind of study was that ?

A successful one?

In any case, it looks like it took you over two hours to get to a pressure of 9: 110 minutes at 4, 2 minutes at 5, almost no time at 6, 1 minute at 7, 15 minutes at 8. Then after more than two hours, you reached 9, where you stayed for over four hours because it worked perfectly and didn't need to go higher. Or am I mis-reading your numbers.

Hi

Yes but it took me 2 hours to fall asleep. Almost All that pressure change was while I was awake if I understand the data

9:40 PM Total Sleep Time 181.5 min. (3.0 hrs.)
Lights Out 10:40 PM Wake Before Sleep 110.5 min.
Sleep Onset 12:34 AM Wake During Sleep 85.5

At 12.34 I fell asleep

It seems at about 12:50 my pressure went to 9 and stayed there

I had no events at all. Shouldn't they have dropped my pressure to determine at what pressure I begin having apneas and hypopneas

or is there another criteria by which they adjust pressure. My o2 saturation never went below 94

I dont understand

sleepdeprived

Hi It doesn't make sense to me but I was awake during the 4-8cm pressure change

I feel asleep and my pressure was adjusted from 8 to 9

I never experienced any events but 1 unspecified arousal.

That was at 9cm

I am concerned about the integrity of the data

sleepdeprived

Craig-Tx wrote:

Sleepdeprived wrote: Therapy (cm H2O) 4 5 6 7 8 9

# Arousals 0 0 0 0 0 1
Arousal Index 0.0 0.0 0.0 0.0 0.0 0.3
# Snore 0 0 0 0 0 0
Snore Index 0.0 0.0 0.0 0.0 0.0 0.0
AHI 0.0 0.0 0.0 0.0 0.0 0.0
# Obstructive 0 0 0 0 0 0
# Central 0 0 0 0 0 0
# Mixed 0 0 0 0 0 0
# Hypopnea 0 0 0 0 0 0
Total Respiratory Events 0 0 0 0 0 0

Perhaps I'm missing something... According to the numbers why even go above 4 cm H2O??? you appear to have NO Apneas, Hypopneas, or anything even at 4 cm. Did they forget to hook something up?

To know why the technician went to 9 cm, we would have to look at your baseline psg. In other words, your titration study seems to indicate that you do not have sleep apnea, but if you really do have sleep apnea (according to your baseline), then it all makes sense. The tech just cranked up the pressure before any events occurred.

I think it's a valid arguement for an apap, however, because you might get along just fine with a pressure of 6 or 7. There's no way to tell from your titration study. Seems like the tech just wanted to get the pressure up, thinking you might not sleep much.

Just a guess, I'm certainly no expert.

Good luck,
Cathy

[quote="tangents"]To know why the technician went to 9 cm, we would have to look at your baseline psg. In other words, your titration study seems to indicate that you do not have sleep apnea, but if you really do have sleep apnea (according to your baseline), then it all makes sense. The tech just cranked up the pressure before any events occurred.

I think it's a valid arguement for an apap, however, because you might get along just fine with a pressure of 6 or 7. There's no way to tell from your titration study. Seems like the tech just wanted to get the pressure up, thinking you might not sleep much.

Just a guess, I'm certainly no expert.

Good luck,
Cathy

Hi

Regarding the tech I have the same feeling also. Especially as it took a long time to get to sleep.

I was tested previously without cpap and had an ahi of 49.5 - pretty severe.

What do you mean by baseline. I have some graphs I cannot seem to cut and paste here.

They do not show any events however that I can tell

If you can tell me what to look for and how to copy the data I will post it
here

Thanks

Sleepdeprived

Trying to read the tech's mind. I wonder if she put it up so that raising the pressure later didn't wake you after you got to sleep. But, who knows?

In order to paste reports you have to host them on another website and use the img command (button at the top of your message when you write a message. You click at the beginning, then paste the link, then click at the end.

There are some free ones out there like photobucket.com.

Here's a link to a fuller discussion of how to do it.

viewtopic.php?t=19146&postdays=0&postor ... t&start=15

RosemaryB wrote:Trying to read the tech's mind. I wonder if she put it up so that raising the pressure later didn't wake you after you got to sleep. But, who knows?

In order to paste reports you have to host them on another website and use the img command (button at the top of your message when you write a message. You click at the beginning, then paste the link, then click at the end.

There are some free ones out there like photobucket.com.

Here's a link to a fuller discussion of how to do it.

viewtopic.php?t=19146&postdays=0&postor ... t&start=15

Hi

Thanks much

Sleepdeprived

I was tested previously without cpap and had an ahi of 49.5 - pretty severe.

What do you mean by baseline

That's what I meant by baseline. You do have apnea, they just didn't occur at the pressure of 9 cm. I don't think you need to worry. At 9 cm, you didn't have any central apneas induced, and you had no obstructive apneas or hypopneas. So unless the pressure at 9 bothers you for other reasons, like swallowing air or exhale discomfort, you will probably be treated just fine at 9 cm. Again, just my opinion. Still, I would argue for an AutoPAP right from the git-go.

Cathy

tangents wrote:

I was tested previously without cpap and had an ahi of 49.5 - pretty severe.

What do you mean by baseline

That's what I meant by baseline. You do have apnea, they just didn't occur at the pressure of 9 cm. I don't think you need to worry. At 9 cm, you didn't have any central apneas induced, and you had no obstructive apneas or hypopneas. So unless the pressure at 9 bothers you for other reasons, like swallowing air or exhale discomfort, you will probably be treated just fine at 9 cm. Again, just my opinion. Still, I would argue for an AutoPAP right from the git-go.

Cathy

Hi Cathy

Thanks

It was rather difficult in the beginning. The sleep doc noted in the report I had considerble difficulty tolerating cpap

I am going to argue auto based on that and the way I was titrated when I see my ENT on monday.

Thanks again

Sleepdeprived.

Go get 'em, Tiger!

Best of luck,
Cathy



That's a roar, not a yawn!!