【摘要】 动态观察22只家兔在用接触电极记录清醒和全麻闭胸、开胸后心包完整和去心包4种状态下的左右心室外膜和全麻闭胸左右心室内膜心肌单相动作电位(MAP)过程中对动脉血压(Bp)和中心静脉压(CVP)的影响。结果表明,除闭胸状态记录心外膜MAP时部分未见BP和Cvp变化和在记录MAP过程中降低的BP和升高的Cvp大部分能自动恢复到记录前外,其余状态记录左右心室内外膜MAP时均引起明显的Bp下降和Cvp升高,且不能自动恢复。更多还原

【Abstract】 It has not been rePorted whether hemodynamics is influenced by using contact electrode to record monophasie action Potential (MAP) of myoeardium. Therefore, dynamic changes in arterial blood Pressure (BP) and central venous Pressure (CVP) during recording MAP of endocardium and epicardium of both ventricles Were observed on 22 rabbits in four states, that is, closed-chest waked or anesthetized and pericardium intact or extirpated after theraetomy. The results indicated that there were no changes in BP and CVP in part cases and automatically recovered from fallen BP and risen CVP in most cases during MAP of the epicardium in the closed-chest state.However, almost all the BP significantly fell and CVP rose and the changes did not automatically recover in the Period of recording MAP from endocandium and epicardium in other states.更多还原