体位性窒息对心、肺功能影响的实验研究

通过从股静脉将漂浮导管插入肺动脉的方法 ,检测悬挂前、悬挂期间和临终阶段呼吸、肺动脉压、心输出量的变化,探讨体位性窒息对心、肺功能影响及其在死亡中所起作用。结果:(1)悬挂前呼吸频率平稳 ,悬挂期间逐渐加快 ,临终前呈无规律状态 ;(2)悬挂期间及临终时肺动脉压比悬挂前明显升高;(3)悬挂前及悬挂期间的心输出量基本平稳 ,临终时比悬挂前及悬挂期间明显下降。本研究发现 ,悬挂可致呼吸失调 ,机体缺氧 ,导致心、肺功能障碍 ,属肺性死亡。其特征为呼吸停止是原发性的 ,心跳停止是继发的。

An experimental study on the effect of positional asphyxia on cardiac and pulmonary functions

The purpose of the study is to explore the effect of positional asphyxia on cardiac and pulmonary functions and its role in causing death respiration,pulmonary artery pressure and cardiac output were measured by inserting the swan-ganz into the pulmonary artery from the femoral vein Results showed that: (1) the respiration was stable before hanging, getting faster during hanging, and becoming irregular at the terminal stage of hanging; (2) the pulmonary artery pressure increased significantly during and at the terminal stage of hanging as compared with that before hanging;(3) the cardiac output was stable before and during hanging, but decreased significantly at the terminal stage of hanging It is concluded that hanging may cause respiratory imbalance and hypoxia, resulting in cardiac and pulmonary dysfunction The death caused by hanging belongs to respiratory death, the characteristic of which is primary respiratory arrest followed by secondary cardiac arrest