摘要
本文采用３３只家猫，颅内硬脑膜外埋置胶囊，按颅腔容积１０％注水，产生持续性颅内高压，致使：１．瞳孔散大、光反射消失，呼吸减慢甚致停止，脑电平直；２．枕骨大孔疝形成，疝下的小脑组织碎断、播散到脊髓蛛网膜下腔；３．随着人工呼吸时间（１—２４小时）的延长，神经细胞坏死及溶解增多，９～１２小时遍及全脑．因此．持续性颅内高压可致脑疝。全脑功能不可逆性丧失及神经细胞广泛性坏死、溶解，已处于脑死亡状态，时限是９—１２小时．
In order to study the lesions and pathogenesis of braindsath. the experimcnts were performed in 33 cats to causerersistent intracranial hypertension by extradural inflatingballon. The animals were divided into 7 groups accordingto the duration maintained on the respirator. The resultsshow: (1) Dilated and fixed pupils. cessation of respiration and flattening of EEG, (2) A varying degree of cerebral herniations, especially the herniation of foramenmagnum and dissemination of the herniated fragments ofcarebellar tonsillar tissue into the spinal subarachnoidspace (3) The longer of the duration maintained on respirator. the more severe of the neuronal necrosis andautolysis which occured in whole brain at 9-12 hours.
出处
《法医学杂志》
CAS
CSCD
1994年第1期6-10,F002,共6页
Journal of Forensic Medicine
关键词
脑死亡
法医病理学
实验性颅内高压致死
病理形态学
Brain death
Intracranial hypertension
Carebral herniation
Neuronal necrcsis and autolysis
