首都医科大学学报 ›› 1990, Vol. 11 ›› Issue (1): 5-9.

• 论著 • 上一篇    下一篇

急性全心缺氧时心率及冠脉流出量变化的观察及其机制探讨

孟繁英, 孙继文   

  1. 首都医学院病理生理学教研室
  • 收稿日期:1989-04-22 修回日期:1900-01-01 出版日期:1990-01-15 发布日期:1990-01-15

Obeservation on the Mechanism of Heart Rate andCoronary Outflow under Global Cardiac Hypoxia

Meng Fanying, Sun Jiwen   

  1. Department of Pathophysiology, Capital Institute of Medicine
  • Received:1989-04-22 Revised:1900-01-01 Online:1990-01-15 Published:1990-01-15

摘要: 不同程度缺氧时同步观察心肌内源性腺苷、心率及冠脉流出量的变化。实验结果发现缺氧可使心肌内源性腺苷增高,心率减慢,冠脉流出量增加;腺苷的特异性拮抗剂一一氨茶碱,可完全拮抗缺氧时出现的心率及冠脉流出量的变化。

关键词: 缺氧, 腺苷, 心率, 冠脉流量, 氨茶碱

Abstract: The present experiment laid stress on synchronous observation of the changes in myocardial endogenous adenosine level and heart rate as well as coronary outflow. The results disclosed: 1. Hypoxia can cause increase in endogenous adenosine level and coronary outflow and decrease in heart rate. 2. Specific antagonist of adenosine-aminophylline antagonized completely the changes in heart rate and coronary flow. Therefore, we concluded that myocardial endogenous adenosine might be causally related to the changes in heart rate and coronary outflow.

Key words: hypoxia, adenosine, heart rate, coronary outflow, aminophylline