中医认为针刺具有通调气血

疏通经络

和谐脏腑

扶正祛邪的作用。在古典医籍中

有很多关于针刺心包经经穴治疗心脏疾患的论述。近年来

大量临床观察和实验研究证明

针刺“内关”对缺血性心脏病患者

确实具有较好的疗效;电针动物“内关”对急性缺血心肌能呈现出加速其恢复过程的作用。电针“内关”产生疗效的作用机制

是针灸原理研究中的一个重要课题。由于交感神经对心肌功能活动具有重要影响

电针“内关”可以兴奋穴区土相应躯体神经

The effect of electroacupuncture on the recovery of acute myocardial ischemia was observed. 49 adult cats anesthetized with chloralose were di- vided into four groups: 1. electroacupuncture (EA)

2. removal of the stellate ganglia (RSG)

3. electroacupuncture of the non-stellate ganglia (EA+RSG) and the control group. Applying the method of ligating the LAD coronary artery for 15 min

a state of regional myocardial ischemia was made

after which the ligati- on was loosened and the ST and T values were observed for an hour. The potential changes of the ST and T values of lead C-T ECG ave- raged 16 times by computer 7 S 06 A were used as the index to evaluate myocardial ischemia and its recovery course. The EA and the EA+RSG groups received the electric impulses on both "Neiguan"

lasting for 20 min immediately after loosing the ligation. The main results were as follows: 1. When the LAD coronary artery was ligated for 15 min

the ST and T values of lead C-T ECG were elevated obviously

but there were no sta- tistical significances among four groups. 2. After loosening

the ST and T values in all groups presented a tendency of recovery

After statistical analysis with Ridit method it was found that the recovery of the ST T values of EA group was the best of four groups

the RSG group and the EA+RSG group the next and the co- ntrol the worst of them. The above result showed that the effect of needling "Neiguan" was markedly reduced after the stellate ganglia of the cat was taken away. It suggested that the cardiac sympathetic nerves might be an important link for connective pathways between "Neiguan" and the heart.