Methods
After discussion, our department decided to perform adhesion incision and pharyngoplasty with CO2 laser.After the laryngeal surface anesthesia with fiber bronchoscope, the patient was intubated awake with the light stick. After general anesthesia, the patient was placed in a head back and supine position. Under the microscope, a moist cotton pledget was placed around the anesthesia cannula with a diameter of about 6mm to protect the anesthesia tube balloon. Before incision, the anesthesiologist was informed to change the anesthetic gas to mixed gas. CO2 laser (2W, continuous mode) (DEKA SmartXide2C60 M103F1) was used to melt the mucosa on the right side of the epiglottic lingual surface through the small hole, and we lifted the superior mucosal flap for later use. Then we created the two-layer mucosal flaps by dislocation incision of the inferior adhesive mucosa and turned the mucosal flap from the pharyngeal cavity surface towards the lingual surface. To shape the right epiglottic mucosa, a 6-0 vicryl was used to suture the mucosal flap and the incisal margin of the lingual surface mucosa of the epiglottis together. Then the excess mucosa was removed. Sutured the mucosal flap on the lateral pharyngeal wall to the peripheral edge of the mucosa to shape the hypopharynx (Fig 2). The same went for the left side.