阻断主动脉和肺动脉对不同部位心阻抗微分图波幅影响的实验研究  

The Influence of Breaking Aorta and Lung Artery on Cardiac Impedance Differential Plethysmography of Different Positicn of Chest

作　　者：洪文钦[1] 胡爱荣[1] 丁南华[2] 赵志坚[1] 况明星[1] 

机构地区：[1]江西医学院物理教研室,江西南昌330006 [2]江西医学院功能中心实验室,江西南昌330006

出　　处：《江西医学院学报》2004年第5期1-3,共3页Acta Academiae Medicinae Jiangxi

基　　金：江西省自然科学基金课题 (项目编号 0 340 0 6 0 )

摘　　要：目的　探讨左右心循环血容量变化对体表不同部位心阻抗微分图C波幅度的影响。方法　用阻断麻醉狗主动脉和肺动脉的方法 ,同步观察六对方片电极上心阻抗微分图C波幅度的改变。结果　不管是阻断主动脉还是肺动脉 ,各电极上的C波幅度都有明显下降 ,但影响的程度因电极位置不同而异。Objective To study the influence on the amplitude of C wave of cardiac impedance differential plethysmography in different position on chest, which was caused by the capacity change of left and righ circulation.Methods The range of C wave of cardiac impedance differential plethysmography by six pairs of electrodes at the same time was observing, with dog's aorta and lung artery broken and narcotized.Results Either aorta or lung artery of dog was broken or narcotized, the amplitude of c wave from each electrode went down obvionsly, and depends on the position where the clectrodes were placed.conclusion The cardiac impedance differential plethysmography is a comprehensive conclution of the capactcidy chang of lift and right circulation.

关 键 词：阻抗微分图 阻断 主动脉 肺动脉 波幅 

分 类 号：R-332[医药卫生]