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急性音响损伤(AAT)临床上是指接触冲击或爆炸后,立刻发生持续性听力损失。为了查明AAT在工业性噪声性聋(NIHL)病因中所起的作用,作者分析了52例。年龄为8～57岁(平均31岁)。左耳22例,右耳17例,双耳13例。发生率最高为军人(23例),其次是造船工(9例),金属工业和机器制造工(6例),打猎或打靶练习、燃放鞭炮各8例,其余9例为环境噪声所致。AAT最常见的原因是冲击波(31例),其次是碰击噪声(8例)。立即出现的症状有听力障碍(47例),耳鸣35例),疼痛(6例),对声音过敏(7例)等。仅5例伤后立即去就医的年青病人,曾用低分子右旋醣酐、罂粟碱、皮质类固醇或血管
Acute Acoustic Injury (AAT) is clinically defined as sustained hearing loss immediately after an impact or explosion. To identify the role of AAT in the etiology of industrial noise-induced hearing loss (NIHL), the authors analyzed 52 patients. Aged 8 to 57 years (average 31 years). 22 cases of left ear, 17 cases of right ear and 13 ears. The highest incidence was military personnel (23 cases), followed by shipbuilders (9 cases), metal industry and machine builders (6 cases), hunting or shooting exercises, firing of firecrackers in 8 cases and the remaining 9 cases caused by environmental noise. The most common causes of AAT were shock waves (31 cases), followed by impact noise (8 cases). Immediate symptoms were hearing impairment (n = 47), tinnitus (n = 35), pain (n = 6), allergic sound (n = 7), and so on. Only 5 cases of young patients immediately after injury to seek medical treatment, had used low molecular weight dextran, papaverine, corticosteroids or blood vessels