Tang Tempo P Y, McPherson Bradley, Yuen Kevin C P, Wong Lena L N, Lee Juvy S M
Division of Speech and Hearing Sciences, University of Hong Kong, Prince Philip Dental Hospital, 5F, 34 Hospital Road, Hong Kong, China.
Int J Pediatr Otorhinolaryngol. 2004 Feb;68(2):175-83. doi: 10.1016/j.ijporl.2003.10.004.
The frequency of occurrence of a recently identified hearing disorder, auditory neuropathy/auditory dys-synchrony (AN/AD), was investigated in children with hearing impairment in Hong Kong.
In this study, 56 students, aged 7-18 years, attending primary divisions in schools for the hearing impaired were screened using otoacoustic emission procedures.
One student in the study group was found to have intact outer hair cell function. A detailed diagnostic assessment of this case strongly suggested AN/AD was involved. Combining the study results with those of a previously conducted survey in Hong Kong, the frequency of occurrence of AN/AD in children attending schools for the hearing impaired was estimated to be 2.44% (3 out of 123 children screened). Estimates of the frequency of occurrence of AN/AD in various other educational settings in Hong Kong were also derived.
The study indicates that AN/AD is not an extremely rare disorder. Educational audiologists and other health care professionals need to be actively involved in the identification and management of AN/AD. Research should be directed at technological innovations that may help to overcome the limitations of present screening procedures, in order to more accurately identify the disorder.
对香港听力受损儿童中最近发现的一种听力障碍——听神经病/听觉失同步（AN/AD）的发生率进行调查。
在本研究中，使用耳声发射程序对56名年龄在7至18岁、就读于听力障碍学校小学部的学生进行了筛查。
研究组中有一名学生被发现外毛细胞功能完好。对该病例的详细诊断评估强烈提示涉及AN/AD。将研究结果与香港此前进行的一项调查结果相结合，就读于听力障碍学校的儿童中AN/AD的发生率估计为2.44%（在123名接受筛查的儿童中有3例）。还得出了香港其他各种教育环境中AN/AD发生率的估计值。
该研究表明AN/AD并非极为罕见的疾病。教育听力学家和其他医疗保健专业人员需要积极参与AN/AD的识别和管理。研究应针对可能有助于克服当前筛查程序局限性的技术创新，以便更准确地识别该疾病。
