Laryngeal Mask Airway (LMA) Protector for Minimally Invasive Thyroidectomy

After induction of general anesthesia, the LMA Protector will be applied for airway management. The size of the laryngeal mask will be chosen according to the manufacturer's instructions. Lubricant gel will be applied to the dorsal side of the mask to ease the insertion to the oropharynx. The cuff of the mask will be filled with air by syringe until the indication of the integrated cuff pressure indicator is appropriate according to the manufacturer (green indication). If the indication changes during surgery, air will be added or removed accordingly. If the ventilation of the patient is inadequate at the beginning or anytime during the operation, the mask will be removed and the patient will be intubated.

After induction of general anesthesia, the endotracheal tube be applied for airway management. The size of the tube will be 7.5 for female and 8.5 for male patients. The cuff of of the tube will be filled with 10ml air.