24-hour postoperation laryngea lendoscopy: epiglottic edema: ET 57.6%, LMA 13.3% (p<0.001), epiglottic congestion ET 13.3%, LMA 4.4% (p<0.05), vocal cords granular formation ET 2.2%, LMA 0% (p>0.05). Conclusion: LMA is safe, protect the airway and has fewer complications than ET in patients undergoing FESS.