常频听阈正常的民航飞行学员扩展高频听阈分析

Hearing Thresholds at Extended High Frequencies in Civilian Student Pilots with Normal Hearing at Conventional Frequencies

马峰杰;王雷;胡墨绳;秦彩虹;白银;

1:中国民用航空局民用航空医学中心航空人员体检鉴定所

摘要
目的探讨扩展高频(extended highfrequency,EHF)测听对于早期发现民航飞行学员听力损失的意义。方法对中国民航某飞行学院尚处于理论学习阶段的175例飞行学员(均为男性,1825岁,平均20.2±0.92岁)进行问卷调查和EHF测听,所有受试者常频(0.2525岁,平均20.2±0.92岁)进行问卷调查和EHF测听,所有受试者常频(0.258kHz)听阈≤25dB HL,将结果与国外相应推荐标准比较;将其中173例听力资料完整的学员(除外中耳疾病和有听力损失家族史各1例)按照随身听使用情况分为低风险组(不使用,121例)和高风险组(使用时间>1年,每天>1小时,52例),比较两组间EHF听阈及检出率的差异。结果 173例飞行学员98kHz)听阈≤25dB HL,将结果与国外相应推荐标准比较;将其中173例听力资料完整的学员(除外中耳疾病和有听力损失家族史各1例)按照随身听使用情况分为低风险组(不使用,121例)和高风险组(使用时间>1年,每天>1小时,52例),比较两组间EHF听阈及检出率的差异。结果 173例飞行学员920kHz各频率听阈值均略高于美国国家标准化协会规定的声压级参考阈值和国外文献推荐的同年龄段标准;高风险组9、12.5、16、18kHz阈值显著高于低风险组(P<0.05或0.01),随着频率增高,高风险组听阈检出率逐渐下降,在18、20kHz的检出率显著低于低风险组(P<0.01)。结论 EHF测听有助于早期发现飞行学员噪声性听力损失,应当重视民航飞行学员听力保健,建议避免使用或减少随身听使用时间。
关键词
扩展高频测听;飞行学员;噪声性听力损失
基金项目(Foundation):
民航安全能力建设项目资助(FSDSA0038)
作者
马峰杰;王雷;胡墨绳;秦彩虹;白银;
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