My numbers in my home sleep study gave me very similar numbers for my snore index (I am only 23!)
I knew I am capable of quite loud snoring (especially after a drink)...but I didn't think my snoring was record breaking (which apparently it is according to the home sleep study).
HOWEVER, the lady who conducted my sleep study told me that measuring snoring from home studies are largely inaccurate. They are accurate for AHI and breathing events, but for snoring not so much. To accurately gauge how loud your snoring is, an audio recorder would be needed.
I hope this helps!
In your lab study your most significant issue was RERAs, Respiratory Effort Related Arousals, these are a series of Flow Limitations ending with arousal. Yours were such that you would have an arousal every 4-5 minutes. How restful do you think that was? Your surgery should have reduced or eliminated these.
You say "I wake up with teeth marks on my tongue that are very deep, sometimes deep enough to turn into canker sores. My tongue looks swollen some mornings. My lips tend to be bright red " something is likely going on and I suspect your ENT may be the one to ask. Your Home study said nothing about RERAs which we dominate prior to surgery. The Snores do indicate a respiratory restriction so you may still have RERAs but cannot tell from your current information. Your swollen tongue MAY indicate a similar issue, thus the consult with your ENT. The Split study make sense because the surgery would mean that you should have a new baseline.
How disruptive do you find the snoring?
Your AHI is up to 5.3 from the 4.7 in the lab study.
Because of the RERAs in your lab study the only brand CPAP you want is ResMed because of the way they implemented EPR and that can help with treating RERAs. A BiLevel with greater pressure support may be better for you but it is unlikely the system will let you get one.
I had a look at my sleep report which was based on an at home Phillips Alice NightOne system. They reported a % of the time that I was snoring. It was high at nearly 40%. The % of time snoring may be a better indicator of snoring severity than an index. If your snoring incidents were short but frequent, it could give you a very high index number.
My big concern is the events where I stop breathing completely. One of them was 85 seconds, which is a pretty long apnea. I remember a couple of weeks ago before I did the sleep study, I woke up and did a big gasp for air. My entire body from head to toe was tingling all over and I figured it was from lack of oxygen. No idea how long it was. This very morning, I woke up 2 minutes before my alarm clock was going to go off. I was laying for sure on my stomach with my head turned to the side. I gasped awake, so this apparently happens when I'm also on my stomach and possibly on my side. Home study results seemed to indicate that I had less issues on my side and stomach than on my back, which seems normal for obstructive apnea. Seems quite abnormal for me to gasp awake like that while on my stomach, however. That can't be my tongue falling back. Could be the soft palate/adenoids. Doesn't seem likely at all that it is anything in my sinuses since surgery took care of that.
I do feel like when I lay down, my airway seems a little more constricted than normal for some reason. I do know that my sinus cavities were clear when the ENT doc had me do a CT scan. The swollen turbinates were corrected and so was the deviated septum, so those aren't an issue and I still notice that I breathe much more easily than before the surgery. So I suspect either my tongue falling back, the tissue/soft palate/adenoids.
My tongue looks "larger" sometimes because I think it swells up some when it is pressed into the teeth and irritated all night. Other times during the day, no teeth marks and it looks smaller and more normal to me.
My primary care doc office refused a CPAP prescription, but I have read that primary care docs can write prescriptions for CPAP. They claimed they don't treat sleep apnea. The sleep doctor that I went to before seemed quite incompetent. What are my chances for my ENT doc to write me a prescription for a ResMed Air Sense Auto?
The way it works here in Canada is that the sleep clinic produces the report like you have and then the GP signs a cover sheet to make it a prescription.