we have studied changes in both cardiac performance and the peripheral circulation in order to investigate cardiovascular influences due to electro-acupuncture stimulation (EAP) at the two meridian acupoint (Pericadium and Large Intistine) related to cardiovascular activities.
1) No significant changes were seen in blood pressure and heart rate after EAP at NAIKANGEKIMON (P4-6). However, the impedanve SV and CO were increased markedly with the same consition of EAP.
2) As for stroke volume and cardiac output, EAP had greater effects than dopamine 4μg/kg/min and dobutamine 8μg/kg/min and had almost the same effect as Haemaccel 2ml/kg.
3) No significant changes were seen in blood gas tensions or electrolytes but plasma colloidal osmotic pressure tended to decrease.
4) After EAP at GOKOKU-TESANRI (LI4-10), radial artery was Belated: and the constrictive response of radial artery under the influence of autonomic nerves remained as normal.
5) Sequential changes capillary blood flow were increased as same as the radial artery flow by the effect of EAP.
6) Concerning EAP effects on cardiac performance and peripheral blood circulation EAP at P4-6 LI4-10 induced significant changes but at non-acupoint had no significant effects.