The acoustic stimulation reflex was safe and reliable. Whether hearing is abnormal in those fetus whose acoustic stimulation is negative should be further traced and observed.
声刺激反射法安全可靠，但对声刺激阴性的胎儿听力是否异常，尚待进一步观察。
2
Result: Pure tone and ABR waveforms were abnormal in 20 subjects (21 ears), moreover acoustic stapedius reflex and the vestibular function were abnormal in 19 subjects.