国外报道,新生儿听力损伤的发生率为1‰~3‰,先天性耳聋占我国聋哑人的50%,现有听力语言残疾约2 000万人,并以每年2~4万新发的聋儿递增[1]听力损失是一种常见的出生缺陷,如不及时发现和干预,将严重影响患儿的语言和情感的发育,使语言交流困难,智能发育障碍。实践发现,在不同时 Foreign reports, the incidence of neonatal hearing impairment of 1 ‰ ~ 3 ‰, congenital deafness accounted for 50% of deaf people in our country, the existing hearing and speech disability of about 20 million people, and to 2 to 40,000 new annual Deaf children increase [1] Hearing loss is a common birth defects, if not detected and intervened in time, will seriously affect the development of children’s language and emotion, so that language exchange difficulties, mental retardation. Practice found that at different times