先天性后鼻孔闭锁的发病率为 1∶ 50 0 0到 1∶80 0 0 /存活婴儿 ,女性多于男性 ,为 2∶ 1。双侧者占病例的 4 0 %。 CT研究表明 2 9%的病例是单纯骨性的 ,71%是粘膜和骨质混合的。治疗的主要问题是后鼻孔再狭窄的问题 ,发生率大约 50 %。本文介绍一种新颖的使用支撑物降低后鼻 The incidence of congenital posterior nostrilial atresia is 1: 50 0 0 to 1: 80 0 0 per surviving infant, more women than men, 2: 1. Both sides accounted for 40% of cases. CT studies showed that 29% of cases were mere bony, with 71% being mucosal and osseous. The main problem of treatment is the problem of posterior nostril restenosis, the incidence of about 50%. This article describes a novel use of props to lower the nose