Obstructive Sleep Apnea Syndrome After Oropharyngeal Cancer Treatment

Inclusion Criteria:

* Patient aged over 18 years old, male or female;
* Patient treated for a first oropharyngeal cancer located in upper airways (velum, side walls, back wall, base of tongue, vallecules), locally advanced, rated T3 or T4, whatever the stage N and M0;
* Patient who received curative treatment either surgical (excision and reconstruction free flap) with adjuvant radiotherapy or concurrent chemoradiotherapy;
* Treatment completed at least 12 months prior to study entry;
* Patient whose cancer disease is under control at exam time;
* Subject affiliated to a social security scheme;
* Subject agreeing to participate in the study and who signed the informed consent form.

Exclusion Criteria:

* Minor patient
* No affiliation to a social security scheme (beneficiary or assignee);
* Patient who did not signed the informed consent form
* Patient with neurological disease that can affect the upper airways function
* Patient has already been treated for head and neck cancer;
* Patient has a lesion classified T1 or T2 or M1;
* Patient has received different treatments: surgical resection without reconstruction, only radiotherapy
* Unweaned alcoholic patients