Chadha S, Bais A S
Lady Hardinge Medical College and Associated Hospitals, New Delhi.
Indian J Pediatr. 1997 Nov-Dec;64(6):777-84. doi: 10.1007/BF02725499.
We studied the auditory brainstem responses of 50 high risk neonates from NICU and compared with those of 25 normal neonates in order to determine the percentage of significant auditory impairment in NICU and correlated it to various risk factors. Infants with the risk factors of low birth weight, hyperbilirubinemia, asphyxia, septicemia and meningitis were included in the study group. All the 150 ears were tested at 4 intensities 30 dB, 46 dB, 60 dB and 75 dB. The study recorded prolongation of latency of wave V and I-V Interwave interval in the study group with a statistically significant difference denoting an impaired condition. Incidence of significant auditory impairment was 18%. On follow up at 6 months incidence of persistent auditory abnormality was 4%. On the basis of this study it is suggested that all high risk neonates should undergo screening for hearing impairment.
我们研究了50名来自新生儿重症监护病房（NICU）的高危新生儿的听觉脑干反应，并与25名正常新生儿的反应进行比较，以确定NICU中严重听觉障碍的百分比，并将其与各种风险因素相关联。研究组纳入了具有低出生体重、高胆红素血症、窒息、败血症和脑膜炎等风险因素的婴儿。对所有150只耳朵在30 dB、46 dB、60 dB和75 dB这4种强度下进行了测试。研究记录了研究组中V波潜伏期和I-V波间期的延长，差异具有统计学意义，表明存在受损情况。严重听觉障碍的发生率为18%。在6个月的随访中，持续性听觉异常的发生率为4%。基于这项研究，建议所有高危新生儿都应接受听力障碍筛查。
