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AHI of 52.67 on APAP (Airsense 11)

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oysagomp +0 points · 2 months ago Original Poster

Hi,

I was recently (2 months ago) diagnosed with severe sleep apnea with an AHI of 102 during my sleep study. The doctor mentioned that it seemed to mostly consist of Central SA with some instances of obstructive SA. I purchased an Airsense 11 APAP and they set it to a range of 5-20, according to my GP who ordered the sleep study.

I noticed my AHI went down to 5-10 but I couldn't sleep with the full face mask. I bought the nasal mask and it fit well but I still had some difficulty falling and staying asleep. I finally went with the nasal pillows however I noticed my AHI reached 20-30. I went back to the nasal mask and it still keeps climbing. Last night it was at 52.67.

I notice when I start to nod off, I just stop breathing and honestly, I'm feeling pretty terrified. I just had a procedure done on my heart to correct an AFib and I get arrhythmias and tachycardia when my AHI is this high.

Can anyone shed any light on the situation? I'm going to schedule an appointment with a doctor / sleep specialist but it's Sunday today.

Oscar data: https://imgur.com/ZUSmE1r

3 posts
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[-]
oysagomp +0 points · 2 months ago Original Poster

Hi,

I was recently (2 months ago) diagnosed with severe sleep apnea with an AHI of 102 during my sleep study. The doctor mentioned that it seemed to mostly consist of Central SA with some instances of obstructive SA. I purchased an Airsense 11 APAP and they set it to a range of 5-20, according to my GP who ordered the sleep study.

I noticed my AHI went down to 5-10 but I couldn't sleep with the full face mask. I bought the nasal mask and it fit well but I still had some difficulty falling and staying asleep. I finally went with the nasal pillows however I noticed my AHI reached 20-30. I went back to the nasal mask and it still keeps climbing. Last night it was at 52.67.

I notice when I start to nod off, I just stop breathing and honestly, I'm feeling pretty terrified. I just had a procedure done on my heart to correct an AFib and I get arrhythmias and tachycardia when my AHI is this high.

Can anyone shed any light on the situation? I'm going to schedule an appointment with a doctor / sleep specialist but it's Sunday today.

Oscar data: https://imgur.com/ZUSmE1r

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Sierra +0 points · 2 months ago Sleep Patron

I am not a doctor, but my thoughts are that the high frequency central apnea events are most likely caused by your heart condition. You should ask about an ASV instead of the AirSense 11 machine. A test of your heart function is required before it will be prescribed, so you should see both the sleep doctor and your cardiologist. Here is a link to some information on a ResMed ASV. Phillips makes them as well.

Resmed Aircurve 10 ASV

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sleeptech +0 points · about 2 months ago Sleep Enthusiast

Your graphic did not show your settings. Do you have EPR turned on? If so, it may be enough to mildly hyperventilate you (make you breathe too much) causing hypocapnia (low CO2) and thus central events. EPR (oe equivalent) is turned on by default on most machines. You could try turning it off, or swapping it to ramp only, and see if that helps.

It may also be investigating the possibility that you have underlying centrals which require BiPAP or ASV for management. That really requires a doctor's involvement.

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