Park Mina, Han Kyu-Hee, Jung Hyunseo, Kim Mee-Hee, Chang Hyun-Kyung, Kim Shin Hye, Park Moo Kyun, Lee Jun Ho
Department of Otorhinolaryngology-Head and Neck Surgery, Seoul National University College of Medicine, Seoul National University Hospital, Seoul, South Korea.
Department of Otorhinolaryngology-Head and Neck Surgery, Seoul National University College of Medicine, Seoul National University Hospital, Seoul, South Korea; Department of Otorhinolaryngology, National Medical Center, Seoul, South Korea.
Int J Pediatr Otorhinolaryngol. 2015 Jan;79(1):42-6. doi: 10.1016/j.ijporl.2014.10.041. Epub 2014 Nov 13.
Numerous studies have shown the superiority of a 1000-Hz frequency probe tone for evaluating the middle ear status of infants. However, most of these studies examined Caucasian populations. This study validated the 1000-Hz probe tone and evaluated the age at which it should be used in Korean infants.
Data from 83 infants (43 males, 40 females; mean age 9.2±6.2 (range 1-30) months, 165 ears) were analyzed. Tympanograms were classified according to Baldwin's modification of the method of Marchant et al. and correlated with results based on combined diagnostic tests, including an endoscopic examination of the tympanic membrane, myringotomy findings, and the air and bone conduction auditory brainstem response (ABR) thresholds. Data were analyzed in five age groups, each covering a 3-month range. The traces were measured for both 226- and 1000-Hz probe tones. The sensitivity and specificity for the different age groups were also determined.
For the 226-Hz probe tone, the tympanograms showed normal traces for most ears with otitis media effusions in infants younger than 12 months. By contrast, the tympanograms using the 1000-Hz probe tone showed abnormal traces in most of the infants with otitis media effusions in all age groups. In infants with no otitis media effusion, the tympanograms using both 226- and 1000-Hz probe tones were interpreted as normal in most cases in all age groups. In infants younger than 12 months, the sensitivity of the 226-Hz probe tone was very low (0-6.6%), whereas that of the 1000-Hz probe tone was very high (90-100%). In infants older than 13 months, however, the sensitivities of the 226- and 1000-Hz probe tones were 76.2% and 85.7%, respectively. Regarding specificity, the difference between the two probe tones was not significant for any age group.
This study confirmed the superiority of the 1000-Hz probe tone for evaluating the middle ear in infants. We recommend using a 1000-Hz probe tone at least up to the age of 12 months for Korean infants.
众多研究表明,1000赫兹探测音在评估婴儿中耳状况方面具有优越性。然而,这些研究大多针对白种人群体。本研究验证了1000赫兹探测音,并评估了其在韩国婴儿中应用的适宜年龄。
分析了83例婴儿(43例男性,40例女性;平均年龄9.2±6.2(范围1 - 30)个月,共165耳)的数据。鼓室图根据鲍德温对马尔尚特等人方法的改进进行分类,并与包括鼓膜内镜检查、鼓膜切开术结果以及气导和骨导听性脑干反应(ABR)阈值在内的联合诊断测试结果相关联。数据在五个年龄组中进行分析,每个年龄组涵盖3个月的范围。对226赫兹和1000赫兹探测音的波形都进行了测量。还确定了不同年龄组的敏感性和特异性。
对于226赫兹探测音,12个月以下婴儿中大多数患有中耳积液的耳朵鼓室图显示正常波形。相比之下,使用1000赫兹探测音的鼓室图在所有年龄组中大多数患有中耳积液的婴儿中显示异常波形。在没有中耳积液的婴儿中,所有年龄组中大多数情况下使用226赫兹和1000赫兹探测音的鼓室图都被判定为正常。在12个月以下的婴儿中,226赫兹探测音的敏感性非常低(0 - 6.6%),而1000赫兹探测音的敏感性非常高(高达90 - 100%)。然而,在13个月以上的婴儿中,226赫兹和1000赫兹探测音的敏感性分别为76.2%和85.7%。关于特异性,两个探测音在任何年龄组之间的差异均不显著。
本研究证实了1000赫兹探测音在评估婴儿中耳方面的优越性。我们建议韩国婴儿至少在12个月龄前使用1000赫兹探测音。