LMA with OELM could improve the laryngeal views in patients with difficult laryngoscopy, and it would provide us with an easy and reliable option.

• LMA+OELM联用能明显改善声门的显露程度，降低困难气管插管的难度，提高气管插管的成功率，为临床解决困难气管插管提供了一种新的选择。