Got my first Sleep Study results.... can you help interp.?

General Discussion on any topic relating to CPAP and/or Sleep Apnea.
LikwidFlux
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Joined: Tue Oct 10, 2006 7:27 pm

Got my first Sleep Study results.... can you help interp.?

Post by LikwidFlux » Thu Oct 19, 2006 8:19 am

Alright, so the doctor gave me his interpretation, however, I'd like you guys (I consider you all experts).

Time in bed 388 Minutes
Total Sleep Time 286 minutes

Awakening index 23
Apnea Index 10.5
Total of 49 obstructive, 0 central, 0 mixed, 1 hypopneia events/

Min saturation 86%, average saturation 94%

Periodic limb movement index was 36

Sinus bradycardia was in the 50s.

They suggested a formal CPAP titration test, does this seem about right? Do you guys think I'm a good candidate for CPAP?
Likwid

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curtcurt46
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Location: Retired US Army

Post by curtcurt46 » Thu Oct 19, 2006 9:35 am

Looks like to me you have mild sleep apnea. I also have mild sleep apnea with PLMD and I didn't get serious for a while about my therapy. I finally got serious after a sinus surgery and a PSG follow-up that showed that my apneas went really high while in REM sleep, plus my PLMD was much worse. My experience is that as we age our sleep apnea will probably get worse. In my case, it was the PLMD that went off the charts. It was waking me as much as the apneas. Keep your eye on both the SDB and the PLMD. What was your PLMD arousal index? Check out http://www.rls.org, they have info on restless leg syndrome and PLMD. You might also goggle these topics.
Good luck on your titration PSG. If you do not breath well out of your nose make sure the sleep lab is aware so they can put you in a full face mask.
Much luck with your start on cpap.
curtcurt46


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Snoredog
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Re: Got my first Sleep Study results.... can you help interp

Post by Snoredog » Thu Oct 19, 2006 9:57 am

LikwidFlux wrote:Alright, so the doctor gave me his interpretation, however, I'd like you guys (I consider you all experts).

Time in bed 388 Minutes
Total Sleep Time 286 minutes

Awakening index 23
Apnea Index 10.5
Total of 49 obstructive, 0 central, 0 mixed, 1 hypopneia events/

Min saturation 86%, average saturation 94%

Periodic limb movement index was 36

Sinus bradycardia was in the 50s.

They suggested a formal CPAP titration test, does this seem about right? Do you guys think I'm a good candidate for CPAP?
Missing from your results is the sleep architecture data, should resemble below:

Wake:
Stage1:
Stage2:
Stage3:
Stage4:
REM

The above should be followed by a percentage (%) which shows the quality of sleep you are getting. It can play a factor into the severity of your disorder as well as the PLMD of 36.

If you take the 286 minutes, divide by 60 you get the total hrs. slept during the test. So yours is 286/60=4.76. Next you take the events seen during that time in your case you had 49AI's and 1HI=50 events, so it is 50/4.76=10.50hr or AHI=10.5. If the PLM's of 36 were seen to cause an arousal to sleep they should also be factored in or considered. But from the above you are Mild (see below).

It is good NO centrals or mixed were seen. If a cpap titration is recommened and its results show that the OSA is controlled, oxygen levels are maintained and it reduces the PLMD's then it may be recommended. And I think that is what they want to find out, but you need to speak to your doctor.

Below is a legend on severity but other factors may be considered.

DEFINITIONS:
APNEA = cessation of airflow for 10 seconds or greater.
HYPOPNEA =>50% decrease in airflow for 10 seconds or greater with a decrease in oxygen saturation of >3%.
APNEA/HYPOPNEA INDEX (AHI) = apnea plus (+) HYPOPNEA/hour of sleep.
RESPIRATORY AROUSAL INDEX (RAI) = AHI +snoring related EEG arousals/hour of sleep.
AHI/RAI** Scale =<5 events /hour = (none); 5-15 events/hour = (mild); 15-30 events/hour = (moderate); >30 events/hour = (severe).
Respiratory related sleep fragmentation: Sleep arousals due to respiratory events or snoring.
Desaturation = Drop in O2 oximetry distribution saturation by 3% below average saturation.
SaO2 scale: >89%=(none); 85-89%=(mild);80-84%=(moderate); <80% (severe).
EPWORTH SLEEPINESS SCALE =<10=(does not indicate EDS (Excessive Daytime Somnolence));10-15=(indicates daytime somnolence-not excessive);>16 (indicates EDS).
RESPIRATORY EFFORT RELATED AROUSALS (RERAs)=Sleep Arousals due to respiratory events characterized by pressure flow limitations in the airflow indicator channel without significant O2 desaturations.
StageIII and StageIV are combined and referred to as Deep Sleep.
Sleep Efficiency = Normal is >80%


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rested gal
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Re: Got my first Sleep Study results.... can you help interp

Post by rested gal » Thu Oct 19, 2006 1:02 pm

LikwidFlux wrote:They suggested a formal CPAP titration test, does this seem about right? Do you guys think I'm a good candidate for CPAP?
Yes to both questions.
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Mask: Aeiomed Headrest (deconstructed, with homemade straps
3M painters tape over mouth
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FARRAH

BRADYCARDIA

Post by FARRAH » Thu Oct 19, 2006 1:27 pm

IS IT CONSIDERED BRADYCARDIA IF YOU ARE SLEEPING. I THOUGHT A SLOWER HEART RATE WAS OK WHILE SLEEPING??