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Re: hypopneas vs. apneas


Posted by TAB on February02, 2000 at 11:50:25:

In Reply to: hypopneas vs. apneas posted by Alex on February02, 2000 at 11:09:27:

I went to a local sleep study presentation last night and learned much about this topic. An arousal also occurs with a hypopnea because the brain senses the drop in oxygen due to delayed breathing (your hypopnea). Hypopnea is still dangerous because o2 saturation level can decrease to low levels. My 02 sat averaged 77% during sleep, and I do NOT have any apnea. Trust me when I say that 77% is low enough to make you feel miserable all day long. Long term effects of low 02 sat. on heart can be bad, but I'm not clear on how long the condition must exist before your're at any real risk of damage. The goal of your treatment should be to remove any obstruction that is causing your hypopneas. Perhaps, it is enlarged tonsils or tongue in back of throat. Finally, I don't know that RDI is "calculated" so much as it is "identified" through a good sleep study.

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