Universidade Tuiuti, Paraná, Hospital da Policia Militar, Paraná.
Braz J Otorhinolaryngol. 2011 Nov-Dec;77(6):747-53. doi: 10.1590/S1808-86942011000600011.
Shooting is an activity that exposes military personnel to noise impact, which may cause irreversible effects on hearing.
To evaluate impact noise on the hearing of military personnel that practice shooting.
A case-control retrospective study.
115 military personnel were enrolled; 65 had been exposed to impact noise and 50 were non-exposed. Firearm noise levels were evaluated, subjects answered a questionnaire and underwent threshold tonal audiometry and otoacoustic emissions testing.
The average noise level was 125 dB(C). Most subjects (78%) believe that noise may cause hearing loss; nearly all (92.3%) used ear noise protectors while shooting, but most (32.3%) had never received guidance for using this equipment. There were significant differences between the two groups in relation to changes suggesting impact noise-induced hearing loss.
The differences between groups show that noise-exposed military personnel are more likely to develop hearing loss. The goal of a hearing conservation program for this population should be to preserve hearing and educate these individuals about the importance of using hearing protection correctly.
射击活动会使军人暴露于噪声影响下，这可能对听力造成不可逆转的影响。
评估射击训练对军人听力的冲击噪声影响。
病例对照回顾性研究。
共纳入 115 名军人，其中 65 名曾暴露于冲击噪声下，50 名未暴露。评估枪支噪声水平，受试者回答问卷并进行阈值纯音测听和耳声发射测试。
平均噪声水平为 125dB(C)。大多数受试者（78%）认为噪声可能导致听力损失；几乎所有人（92.3%）在射击时使用耳塞，但大多数人（32.3%）从未接受过使用该设备的指导。两组在提示冲击噪声引起听力损失的变化方面存在显著差异。
两组之间的差异表明，暴露于噪声下的军人更有可能出现听力损失。针对该人群的听力保护计划的目标应该是保护听力，并教育这些个体正确使用听力保护的重要性。
