6.Conclusion: This method has advantages of clear operational field, less hemorrhage and damage in treating congenital membranous choanal atresia.

• 结击：鼻内镜下等离子刀手术治疗先天性后鼻孔膜性闭锁，视野清晰，出血少，损伤小，治疗彻底，不易复发，是一种非常有效的治疗方法。