Rahko T, Karma P, Sipilä M
Clinic of Otolaryngology, Tampere University Central Hospital, Finland.
Acta Otolaryngol. 1989 Jul-Aug;108(1-2):107-12. doi: 10.3109/00016488909107400.
Sensorineural hearing of 359 otoscopically and tympanometrically normal 5-year-old children with known otitis-history was studied under ideal conditions. In the subgroups of children with a different number (0, 1-2, 3-7, greater than or equal to 8) of attacks of acute otitis media (AOM) in their history, the mean bone conduction thresholds unregularly varied from 0.1 dB to 7.4 dB, depending on the frequency and the subgroup studied. The proportion of the ears with a bone conduction threshold greater than 10 dB at 0.5, 1, 2 or kHz ranged, also unregularly, from 10.8% to 0.5%, the greatest percentages being found at 0.5 and 1 kHz in the children without a history of AOM. Thus, neither AOM nor its treatment, even if frequently occurring, seem to cause permanent sensorineural hearing loss in children.
在理想条件下,对359名鼓膜和鼓室导抗图检查正常、有中耳炎病史的5岁儿童的感音神经性听力进行了研究。在有不同次数(0次、1 - 2次、3 - 7次、大于或等于8次)急性中耳炎(AOM)发作史的儿童亚组中,平均骨导阈值根据所研究的频率和亚组不同,在0.1 dB至7.4 dB之间不规则变化。在0.5、1、2或kHz频率下骨导阈值大于10 dB的耳朵比例也不规则,范围从10.8%至0.5%,在无AOM病史的儿童中,0.5和1 kHz频率处的比例最高。因此,无论是AOM还是其治疗,即使频繁发生,似乎都不会导致儿童永久性感音神经性听力损失。