DITTO on what Vivki posted.
As a former EMT any sleep apnea patient who is unconscious will have more problems maintaining an airway than a non-OSA patient.
Also if you are not able to speak the anesthiologist should be aware of your sleep apnea. They will manage your airway in surgery differently and how you are managed in recovery may be different.
There is information on on the ASAA site about going into the hospital you might want to look at.
I have a complicated medical history that includes OSA. I wear a medical alert necklace.
(just a truck driver with sleep apnea)
Co-coordinator Truckers for a Cause Chapter of A. W. A. K. E.