摘要
实验采用瑞典模型方法,选用平均射速1400m/s,重1.03g的钢珠,分别致伤两组犬(每组5只)颌面部,于伤后即刻(第一组)、6小时(第二组)用透射电镜观察耳蜗神经改变,以期为颌面部火器伤后听器损伤的早期诊治提供实验依据。另外4只动物不致伤,作为对照组(第三组)。实验发现,伤后两组动物耳蜗神经均有轴突内线粒体肿胀、嵴紊乱、断裂等超微结构改变,说明颌面部高速投射物伤时可伴有不同程度的耳蜗神经损伤,损伤程度可能与伤道距耳蜗的距离有关。作者还就伤后听器损伤的机理进行了讨论。
This experiment was done by using the Sweden trauma model. Ten dogs, divided into two experiment groups, were hit in the lelf maxillofacial region with a small steel sphere (1.03g, 1400m/s). The specimens from the cochlea nerves were examined under electron microscope immediately (the first group) and at 6 hour (the second group) after trauma, respectively. Another four uninjured dogs were used as a crontrol (the third group). Both experiment groups were found to have mitochondrion swell, crista irregularity and break in axons of the cochlea nerves after trauma. The mechanism of the hearing loss following maxillofacial wound by high velocity missile is discussed.
出处
《中华创伤杂志》
CAS
CSCD
北大核心
1993年第4期216-218,共3页
Chinese Journal of Trauma
关键词
颌面
火器伤
耳蜗神经
超微结构
Maxillofacial region Cochlea nerve Ultrastructure Gunshot wound
