关键词: 瞬态耳声发射, 脑干听觉诱发电位, 听力筛查, 早产儿

Abstract: Objective To explore the clinical significance of the hearing detection on different gestational age preterm infants. Methods With Transient evoked otoacoustic emissions(TEOAE) and auditory brainstem response(ABR),328 cases of premature infants hospitalized in neonatal intensive care unit(NICU) and 9 086 cases of full-term newborns(control group) rooming-in were done hearing screening from January 2012 to August 2012. Results Pass rate of hearing screening on the preterm infants was significantly lower than the full-term children(χ²=183.67,P＜0.01).And the smaller the gestational age was,the pass rate of hearing screening was lower on preterm infants.28 weeks≤gestational age＜31 weeks,a total of 35 cases by 16 cases,the pass rate was 45.71%;31 weeks≤gestational age＜34 weeks,a total of 124 cases by 81 cases,the pass rate was 65.32%;34 weeks≤gestational age＜37 weeks,a total of 169 cases by 135 cases,the pass rate was 79.88%.The differences were statistically significant(χ²=19.17,P＜0.01). Conclusion Preterm infants are the high-risk group of hearing lossing,the group should be monitored especially,diagnosed and treated early.

Key words: transient evoked otoacoustic emissions, auditory brainstem response, hearing screening, premature infant