Goodness!
Her doctors are not concerned with the high spikes of her heart rate? And they're not concerned with oxygen levels that dip to 88-89%? Maybe they're gauging their concern from an average, not the lowest oxygen. But normal oxygen levels are in the upper 90's, not the lower 90's. I'd be worried as well.
If it were me, I'd want to see the data. You said the auto cpap didn't work because it didn't deliver the higher pressure she needed. Auto cpaps are usually set at a range of pressure, centered around the titrated pressure. For example, if her pressure was determined at 12, they might make the range 10 to 14, as an example. Auto cpaps record data, I'd be curious to see if it ever ran at a high pressure than 12. Maybe she needs a higher pressure. Has she had a full sleep study? Typical diagnostic testing is in two parts: the first testing for existence and severity, the second to test pressures for using cpap.
Do you know if all her apnea is obstructive? The report from a sleep study should indicate if it's obstructive or central sleep apnea or both. It's most likely all or mostly obstructive, from your description (and obstructive is the most common).
She obviously has special needs due to her surgeries. I have to wonder if something like a VPAP might be of use to her. As I understand it, that is a bipap or bilevel but with a timed mode (think it's called something else). It's usually ordered for someone with Central sleep apnea, but it seems like it might be a possibility for your daughter's situation. The VPAP can be run like a regular bipap or bilevel (bipap is a brand name for bilevel). But in another mode, it will start the breathing after an interval. But this thought is only me thinking out loud. The important thing is to know for sure what pressure is needed to keep the airway open, and I'm not confident from your description that 12 will always do it.
Are you from the UK? If you are, you might consider senting a PM (private message) to our forum member Daniel (Daniel is his username here). He's from Ireland, but he is very familiar with the UK sleep study centers. I think he runs another forum for your region of the world, for sleep apnea. He might have some more local insights for you.
But I feel you have reason to be concerned. The good news seems to be that your daughter will use her machine, that's a relief. We just have to get the right course of treatment for her.
Linda
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