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【《美国医学协会杂志》1991年10月】日前正在试用一种称为诱发耳声发射试验(e-voked otoacoustic emissions test),对某些新生儿进行筛查有无听力丧失。测试仪器是一个含有灵敏的微型传声器和微型扬声器的探头,放在受试者的外耳道,可使内耳产生震动口声音(每秒50次刺激)通过中耳传送。美国西雅图的儿童医院 Norton 称,在美国,先天性感觉神经性听力丧失被检出的平均年龄为2.5岁。在以色列、北欧国家和英国,目
[JAMA, October 1991] A trial called e-voked otoacoustic emissions test is being tested recently to screen for hearing loss in some newborns. The test instrument is a probe with a sensitive miniature microphone and microspeaker that is placed in the subject’s external auditory canal and produces a jarring sound (50 stimuli per second) through the middle ear. Norton, a Children’s Hospital in Seattle, said that in the United States, the average age at which congenital sensorineural hearing loss was detected was 2.5 years. In Israel, the Nordic countries and Britain, head