论文部分内容阅读
室颤和心肺复苏(CPR)时心排出量与肺血流均减少,从而引起通气与灌注不平衡。CPR时应用了肾上腺素反而加重肺气体交换不畅,其机理尚不明。该文通过多种惰性气体排出法研究猪在室颤和CPR过程中的通气与灌注分布,探讨其机制。 方法 44头实验猪不分性别麻醉后皮下埋置电极监测ECG,同时气管插管连接呼吸速度描记器及计算机(Bicore),经室内空气
Ventricular fibrillation and cardiopulmonary resuscitation (CPR) cardiac output and pulmonary blood flow are reduced, resulting in imbalance between ventilation and perfusion. The application of epinephrine instead of CPR exacerbates poor lung gas exchange, the mechanism is not yet clear. In this paper, we studied the distribution of ventilation and perfusion of pigs during ventricular fibrillation and CPR by a variety of inert gas excretion methods and explored the mechanism. Methods 44 experimental pigs were anesthetized without subcutaneous sedation electrodes for monitoring ECG, while tracheal intubation connected to the respiratory speed tracings and computer (Bicore), the indoor air