A preliminary study of a hearing screening model for newborn
LIU Zhiyong, BU Xingkuan, XING Guangqian, et al. Department of Otorhinolaryngology, First Affiliated Hospital, Nanjing Medical University, Nanjing 210029,China Corresponding author: XING Guangqian (Email: email@example.com)
Objective To search for a hearing screening model for newborn and to investigate the prevalence of newborn hearing loss in our country. Methods The distortion product otoacoustic emissions (DPOAE) was used to test the hearing in 2?998 of 3?075 newborns before discharge. Otoacoustic emissions (OAE) was again used for cases failed in the hospital screening 4 weeks later. Those cases failed in both screening steps were finally tested by auditory brainstem response (ABR). All infants failed in ABR test received diagnostic evaluation audiologically to identify the category and degree of hearing loss. The pass criterion of DPOAE was defined as signal noise ratio (SNR) exceeding 6dB in 4 of 5 frequencies between 1.5 6 kHz. The pass criterion of ABR was the presence of wave V in response to 35 dB nHL click stimuli. Results The OAE screening in the hospital showed that 2?710 (90.4%) newborns passed the first test. Two hundred and sixty three of 288 newborns passed the second OAE screening after one month. Six of 25 infants failed in ABR test were eventually identified to be hearing impared. Conclusion Two stages screening, combining OAE and ABR tests, may be an ideal model for newborn hearing screening. The prevalence of congenital hearing loss is similar to that reported in the literature.
【CateGory Index】： R764