| 肺冲击伤中的过牵效应 |
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| 引用本文： | 陈海斌,王正国. 肺冲击伤中的过牵效应[J]. 第三军医大学学报, 2000, 22(2): 106-108 |
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| 作者姓名： | 陈海斌 王正国 |
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| 作者单位： | 第三军医大学附属大坪医院野战外科研究所第四研究室,重庆,400042 |
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| 基金项目： | 全军“九五”指令性课题!(96L040) |
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| 摘 要： | 目的：揭示肺冲击伤中过牵效应的含义和发生机制。方法：作用６０只家兔和２０只大鼠进行冲击波分段模拟实验。结果：在本实验条件下，模拟压缩段的压缩波不睦接造成明显的肺损伤，但模拟减压段的减压波根据减压幅度和减压时间的不同可对肺造成不同的肺损伤，模拟负段的负压波对肺具有一定的致伤能力。结论：肺冲击伤中的过牵效应可能包含两个效应，一是肺组织过度扩张，超出其强度极限而破裂，即发生过度扩张效应；二是肺扩张过快面
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| 关 键 词： | 肺冲击伤 过牵效应 动物试验 |
Role of overtension effect in blast lung injury |
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| CHEN Hai-bin,WANG Zheng-guo. Role of overtension effect in blast lung injury[J]. Acta Academiae Medicinae Militaris Tertiae, 2000, 22(2): 106-108 |
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| Authors: | CHEN Hai-bin WANG Zheng-guo |
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| Affiliation: | CHEN Hai-bin, WANG Zheng-guo(Research Institute of Field Surgery, Daping Hospital, Third Military Medical University,Chongqing 400042);IS:Injury score oflung injury |
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| Abstract: | Objective: To determine the definition of overtension causing blast lung injury and explore its mechanism. Methods: 60 rabbits and 20 rats were used to investigate the wounding effects of three segments (recompression, decompression and underpressure) of shock wave. Results: Under this experimental condition, recompression wave did not bring about obvious lung injury but damages of different degrees occurred. The greater the decompression range and the shorter the decompression duration were adopted, the heavier lung injury was caused. The underpressure, to some extent, could inflict the blast lung injury. Conclusion: The overtension effect maybe consists of two parts: overexpansion effect, letting the lungs overexpanded, leading to the destruction of the pulmonary tissue; over speed expansion effect, letting the lungs rapidly impact on the inside wall of the chest, causing lung injury. |
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| Keywords: | shock wave lung injury overtension effect overexpansion over speed expansion |
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