通过动物试验证明火炮发射爆震在近距离内可引起较重的中耳及耳蜗损伤。30只豚鼠60耳中,鼓膜破裂者57耳,听骨链破坏者32耳,中耳积血或有渗出液者47耳;耳蜗病变,轻度者3耳,中度者41耳,重度者16耳。耳蜗的损伤主要在耳蜗的第一、二周,其中21耳病变波及第三、四周。上述结果与临床检查受炮震后听力损伤者的听力曲线相符合。 Animal experiments show that artillery firing detonation can cause severe middle ear and cochlear damage at close range. 30 guinea pigs in 60 ears, the tympanic membrane rupture 57 ears, 32 cases of ossicular chain damage, middle ear hemorrhage or exudate 47 ears; cochlear lesions, mild 3 ears, moderate 41 ears, severe 16 ears. Cochlear injury mainly in the first and second weeks of the cochlea, of which 21 ear lesions affected the third and fourth weeks. The above results are consistent with the hearing tests of hearing-impaired patients after blasting.