Preoperative diagnosis: Specialist examination + traditional examination (CT, MRI, fiber nasopharyngoscopy, craniofacial X-ray measurement) + PSG or obstruction plane positioning system.

Principle: According to the difference of light, medium and heavy degree of OSAS patients and the different structures of pharyngeal cavity, the most suitable, personalized, combined, multi-planar surgery should be selected;

Light OSAS: Using plasma Assisted ZPP under local anesthesia pharyngoplasty – CAUP (Coblation Assisted Upper Airway – Procedures).Apply to light and moderate OSAS to uvula sagging relaxation, pharyngeal cavity left and right diameter is not narrow.

Moderate and severe OSAS: UPPP improved under plasma-assisted general anesthesia; accurate positioning of the obstruction plane; tongue root hypertrophy for the treatment of the tongue root in a safe area; suitable, multi-planar, combined, personalized surgical approach.