犬高速枪弹伤空腔效应对邻近血管的影响

The Effects of Temporary Cavity of High-Velocity Missiles on Adjacent Blood Vessels

本实验观察高速枪弹瞬时空腔效应对邻近股动脉的损伤。股动脉位移与瞬时空腔大小成正比,瞬时空腔大,位移明显。距原发伤道中心4cm以内的股动脉可见内皮细胞损伤、剥脱,内弹力膜断裂,部分血管内血栓形成。距伤道中心6～8cm处血管损伤明显减轻。出口侧较入口侧血管损伤严重。

Both thigns of the dogs were injured with 5.56mm M193 Bullets. The effects of the temporary cavity of high velocity missiles on the femoral arteries were studied. The displacement of the femoral artery was proportional to the size of the temporary cavity. The partial endothelial injury, Ices of intima, rupture of internal elastic membrane and thrombi were observed in the femoral arteries within 4 cm of residual track. The injuries in the leg with an exit wound were more severe than that in the leg with an entrance wound, the incidence of thrombosis in 24 and 172 hour groups was higher than in 6 hour group.