A study on maxillofacial impact injury associated with brain injury
Abstract：Objective To study the characteristics of maxillofacial injury associated with brain injury.Methods Eighteen rabbits were subjected to left middle face impact with different impact velocities, which were(4.77±0.53)m/s,(9.16±0.65)m/s,(13.95±0.67)m/s. Life system change during the impact period was monitored. The pathological characteristics of correlative tissues at the time of 6 hours after impact were examined in detail. The content of LPO in blood and LPO,SOD,NO in brain were measured at the same time, compared with control.Results The content of LPO in blood,LPO,NO in brain and cerebral water content significantly increased,but the content of SOD in brain reduced with the increase of impact velocity (P<0.01).Conclusion Free radicals and NO are involved in the progress of tissue injury followed by maxillofacial impact injury. Production of a large quantity of NO may be an important factor to cause progressive damage of tissues.
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Publication Date：2001-01-01
Online Publishing Date：2025-08-15(First online date of this platform, not the publication date of the document)
Pages：4( 93-96 )