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Bad sleep study experience
#1
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Hello All!

2 days ago I had a sleep study done at a facility because of my issues waking up in the morning and being super tired after waking up. Unfortunately I was not able to have good sleep because of the place being super loud. I woke up maybe 6 or 7 times and didn't sleep much during the study. Before the study I was told by a technician that if I go above 5 episodes he will come and put a mask on. That didn't happen. At the end of the study he suggested that I don't have a sleep apnea problem. I'm yet to see my study full result and talk to a specialist about the results. However, where it gets tricky is that my partner has a sleep apnea and uses ResMed autoset 10. His study (in home) showed 30 episodes an hour. With the machine he went to 0.7. He usually doesn't go over 1. I did try his machine 2 nights and both nights shows that the number of episodes was 7. That's where I have a question. How is that possible that my number is bigger than his if I don't have sleep apnea? Using my logic I assume that my number should be close to 0 and not bigger then without CPAP. Any idea? All suggestions welcomed.
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#2
Remember that a sleep study is just one night. If you were up most of the night as you state, then the results may be questionable.

I had to have my study repeated due to only sleeping a little over an hour the entire night.

Request a copy of the sleep study to see exactly what it says, and post results here.
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#3
Generally the sleep technicians are not allowed to make any diagnosis. If you did not have sufficient sleep to determine if you have sleep apnea the reviewing physician will note that. Using someone's CPAP may induce central apneas, or the settings may not fit you. In addition to simple AHI, successful treatment of apneas include making sure that you are not suffering from oxygen desaturations, or arousals that disturb you transitions from the different phases of sleep.

In short, don't panic yet, see what the sleep Dr. has to say, and be sure to discuss the tired feeling in the mornings when you discuss the sleep report.

Best luck to you.
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#4
Surprised 
Thx for fast responding. Thanks I will for sure not use his machine again. Central Sleep Apnea is the last thing I want. I just got confused with the study and super unhappy since I payed for it from my own pocket ( insurance doesn't cover it). I just tried to understand more the result that I got his machine and if my thinking is correct. Thank You again! I will post the results when I get these. Also, do you guys have any idea how much pressing snooz is bad for you? I sometimes do it 5 or 6 times. I wonder if that's why I feel like crap.
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#5
Perhaps, if the duration of your sleep was not enough, your Doctor might suggest you have a second night - for evaluation.
HE is the one who wiill answer all your questions. Don't worry, just try to look after yourself.

I wish you the best!...

Costas
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#6
Using someone else's CPAP machine, or a machine with settings not perfect for you will not cause idiopathic centra apnea.  It might cause CO2 washout events that appear like CA events.  That might disturb your sleep but it is not permanent or overly dangerous.  You have done yourself no harm.

Also keep in mind that the CPAP machines are much less exact than a sleep lab and have no way of knowing if you sleeping or not.  So if it took you a while to get to sleep with the machine on or you were dozing and pressing sleep in the morning, that could very well result in a higher AHI number than your partner but not be indicative of sleep apnea.  

Some places will do an in-home test which is less accurate than a real sleep lab but less invasive too.  I think at least one of the suppliers on the list at the top of this page does this by mail too.  I forget which.
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#7
I used to be a champion snooze alarm user. But that's because I was not getting restful sleep. Since starting with my CPAP I wake at between 5 and 6 am and ready to get out of bed, no alarm needed.
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#8
Hi

My process of diagnosis began with an overnight Oximetry test at home. I live in the UK and the National Health Service(Kings College Hospital) provided this 'thing' which clips to my middle finger to assess the quantum of oxygen throughout my night's sleep. Assessment concluded I have 15-20 events per hour which initially, being mild to moderate, it was concluded I did not require CPAP therapy.
I insisted on further evaluation with a Sleep Clinic as I had been waking up at periods with severe headaches, many night visits to the loo and also constant exhaustion through the day.
An overnight assessment at the hospital with an APAP concluded I have REM sleep apnea - apparently only 7 per hour-pretty low. The strange thing was that I required maximum 20 cmH20 to deal with it. I was then asked to continue the assessment at home for a further 2 weeks with an APAP which concluded my pressure should be 16.8 cmH20.

So long story short, is there an opportunity for a home overnight oximetry be carried out initially for you? I do not mean to be rude or arrogant but despite being professional and knowledgeable sometimes our medical profesionsals do need a bit of help to direct their energies to helping us. Having said all that I got copies of the results with graphs which I do not know how to decipher myself. I do not understand the process where you are but wonder if a more cost effective test like the one I had would be a good place to start.
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#9
(04-19-2017, 01:42 PM)chill Wrote: Using someone else's CPAP machine, or a machine with settings not perfect for you will not cause idiopathic centra apnea.  It might cause CO2 washout events that appear like CA events.  That might disturb your sleep but it is not permanent or overly dangerous.  You have done yourself no harm.

Also keep in mind that the CPAP machines are much less exact than a sleep lab and have no way of knowing if you sleeping or not.  So if it took you a while to get to sleep with the machine on or you were dozing and pressing sleep in the morning, that could very well result in a higher AHI number than your partner but not be indicative of sleep apnea.  

Some places will do an in-home test which is less accurate than a real sleep lab but less invasive too.  I think at least one of the suppliers on the list at the top of this page does this by mail too.  I forget which.

Actually to my surprise I didn't have much issue sleeping with it on. Also, I did not press the snooze with the machine on. I only used it till 6 am. It was a general question about pressing snooz. Thanks for help!
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#10
Hi Chicago,
WELCOME! to the forum.!
Hang in there for more responses to your post, good luck to you as you start your CPAP journey.
trish6hundred
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