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Re: New UARS patient? Standard Sleep Study NORMAL.
Posted: Sun Aug 03, 2014 1:28 pm
by palerider
Physician wrote:During the past week, here are her average values. Your thoughts (other than leak seems too high) ?
Leak 0.5 L/sec.
AHI 8.5
AI 3.2
HI 5.8
Pressure 12
30lpm is pretty high for a resmed, without any data though, *shrug* who can say what the issue is.
Re: New UARS patient? Standard Sleep Study NORMAL.
Posted: Sun Aug 03, 2014 9:16 pm
by Physician
palerider wrote:Physician wrote:During the past week, here are her average values. Your thoughts (other than leak seems too high) ?
Leak 0.5 L/sec.
AHI 8.5
AI 3.2
HI 5.8
Pressure 12
30lpm is pretty high for a resmed, without any data though, *shrug* who can say what the issue is.
Agree. Leak is high, but she does not think it's leaking from anywhere expect the exhaust holes.
What data from an S8 are you seeking, other than what is listed above ? It has no card, so cannot use RM or SH software. Don't have the data cable.
Re: New UARS patient? Standard Sleep Study NORMAL.
Posted: Sun Aug 03, 2014 9:58 pm
by HoseCrusher
A few comments...
I believe the leak data is reporting the median leak value. The acceptable leak value is 0.4 L/sec or 24 L/min. I usually strive to keep both the maximum and 95th percentile below the acceptable leak rate. If you do that the median value falls way off. That would indicate that somewhere, somehow, something is leaking more than it should.
The S8 gets really excited about scoring HI. If a bird farts as it is passing over your house it seems like the S8 will score that as an HI. As a result of this a more realistic HI value is to take the number reported by the S8 and divide it by 2 or 3. This quirk was adjusted with the S9 but remains a problem with the S8.
I was told to pay attention to the AI number and basically ignore the HI number. If I wanted to get a ball park figure for AHI I should take the HI, divide it by at least 2 and add that to the AI number.
As a reference my AI for the last week as well as for the last year is 0.6. My 95th percentile for leaks is 22 L/min with the median at 1.2 L/min.
I use nasal pillows and adjust my mask very loose. As a result my leaks are a little higher and I am fine with that.
SECOND Sleep Study Results
Posted: Tue Aug 12, 2014 12:42 am
by Physician
Her first sleep study weeks ago was completely normal.
Her AHI was 3.5, RDI = 3.0, TcC02 went to 65 tors most of the study. Lowest 02 saturation was 91. Sleep Efficiency 79%.
I''ve seen the summary and interpretation, but let's see what any of you think.
Re: New UARS patient? Standard Sleep Study NORMAL.
Posted: Tue Aug 12, 2014 1:47 am
by tmr
What was her spontaneous arousals?
Re: New UARS patient? Standard Sleep Study NORMAL.
Posted: Tue Aug 12, 2014 1:57 am
by Physician
tmr wrote:What was her spontaneous arousals?
0
Re: New UARS patient? Standard Sleep Study NORMAL.
Posted: Tue Aug 12, 2014 2:41 am
by tmr
Physician wrote:tmr wrote:What was her spontaneous arousals?
0
I don't know if that is possible? Could it be that they did not score them and put zero instead?
Re: New UARS patient? Standard Sleep Study NORMAL.
Posted: Tue Aug 12, 2014 2:49 am
by Physician
tmr wrote:Physician wrote:tmr wrote:What was her spontaneous arousals?
0
I don't know if that is possible? Could it be that they did not score them and put zero instead?
No arousals, but the study was abnormal.
Re: New UARS patient? Standard Sleep Study NORMAL.
Posted: Tue Aug 12, 2014 4:05 am
by Sludge
Physician wrote:No arousals, but the study was abnormal.
Physician wrote:Her first sleep study weeks ago was completely normal.
Her AHI was 3.5, RDI = 3.0, TcC02 went to 65 tors most of the study. Lowest 02 saturation was 91. Sleep Efficiency 79%.
I''ve seen the summary and interpretation, but let's see what any of you think.
I think:
- A TcpCO2 of 65 mmHg is of great concern in a (relatively) young person;
- AHI cannot exceed RDI; and
- One cannot generally be simultaneously normal and abnormal.
Re: New UARS patient? Standard Sleep Study NORMAL.
Posted: Tue Aug 12, 2014 4:12 am
by Sludge
Sludge wrote:A TcpCO2 of 65 mmHg is of great concern in a (relatively) young person...
Although a TcpCO2 of 65 mmHg is of great concern in pretty much everybody...
Re: New UARS patient? Standard Sleep Study NORMAL.
Posted: Tue Aug 12, 2014 10:26 am
by Physician
Sludge wrote:Physician wrote:No arousals, but the study was abnormal.
Physician wrote:Her first sleep study weeks ago was completely normal.
Her AHI was 3.5, RDI = 3.0, TcC02 went to 65 tors most of the study. Lowest 02 saturation was 91. Sleep Efficiency 79%.
I''ve seen the summary and interpretation, but let's see what any of you think.
I think:
- A TcpCO2 of 65 mmHg is of great concern in a (relatively) young person;
- AHI cannot exceed RDI; and
- One cannot generally be simultaneously normal and abnormal.
Oooops. AHI = 3.0, RDI = 3.0
So would one treat her with CPAP ? If so, why ?
Re: New UARS patient? Standard Sleep Study NORMAL.
Posted: Tue Aug 12, 2014 10:40 am
by Physician
Sludge wrote:Physician wrote:No arousals, but the study was abnormal.
Physician wrote:Her first sleep study weeks ago was completely normal.
Her AHI was 3.5, RDI = 3.0, TcC02 went to 65 tors most of the study. Lowest 02 saturation was 91. Sleep Efficiency 79%.
I''ve seen the summary and interpretation, but let's see what any of you think.
I think:
- A TcpCO2 of 65 mmHg is of great concern in a (relatively) young person;
- AHI cannot exceed RDI; and
- One cannot generally be simultaneously normal and abnormal.
She was NORMAL on her first study was ago.
This new study was NOT normal.
Re: SECOND Sleep Study Results
Posted: Tue Aug 12, 2014 5:41 pm
by Sludge
Physician wrote:... let's see what any of you think.
I think you should smash yourself upside the head with a 48 ounce ball peen hammer (the big beejeebee):
as hard as you can, 24 times in rapid succession, and if after that you still think there's a problem, come back and post.
Re: SECOND Sleep Study Results
Posted: Tue Aug 12, 2014 6:30 pm
by palerider
Sludge wrote:Physician wrote:... let's see what any of you think.
I think you should smash yourself upside the head with a 48 ounce ball peen hammer (the big beejeebee):
as hard as you can, 24 times in rapid succession, and if after that you still think there's a problem, come back and post.
well,
that should have an effect.
Re: SECOND Sleep Study Results
Posted: Wed Aug 13, 2014 3:09 am
by Physician
Sludge wrote:Physician wrote:... let's see what any of you think.
I think you should smash yourself upside the head with a 48 ounce ball peen hammer (the big beejeebee):
as hard as you can, 24 times in rapid succession, and if after that you still think there's a problem, come back and post.
How would a concussion, contusion, subdural hematoma, pain, and a skull fracture answer these valid questions ?