本研究目的擬探討針刺穴位對原委性高血壓息者之即時降壓效果，我們收集了二十三位原發性高血壓患者，每位患者在其兩側內關及足三里穴於不同日期各別接受5Hz低頻電針刺激、平躺休息（貼電極片但不刺激穴位）及札針刺激等治療。同時以電腦心脈儀(dynapulse)測量病人治療前l0min、治療l0min、治療20min及治療後10min之心率、血壓變化，並對高血壓相關症狀改善情形予以問卷評估。結果顯示：電針組和札針組在札針後均有顯著下降心率、收縮壓及平均壓的作用；組問互比委現心率的下際以電針組在治療10min時比平躺休息組明顯；收縮壓的下降在電針組和札針組鈴治療20min後均比平躺休息組明顯；平均壓下降在治療10min時電針組和札針組約比平躺休息組明顯。問卷的結果顯示，電針組和札針組之高血壓相關症狀玫善情形比平躺休息組顯著，但電針組和札針組則無統計學上的差異。

The purpose of study we enrolled twenty three essential hypertensive patients to evaluate immediately decreased effect of blood pressure with acupuncture treated essential hypertension. Each patient individually received 5 Hz electro-acupuncture, acupuncture and bed rest treatment on bilateral Neiguan (P6) and Zu-San-Li (S36) acupoints at different interval. All patients with Dynapulse monitor check heart rate and blood pressure change individually at pre-treat 10 mm, treating 1 0mm, treating 20 mm and post-treat 1 0mm. A questionnaire gave all patients to record hypertension associated symptoms at post-treatment. Results demonstrated that electro-acupuncture and acupuncture groups are significantly decreased heart rate, systolic pressure and mean pressure. Decreasing effect of heart rate in electro-acupuncture group is markedly significant than bed rest group at treating 1 0mm. The effect of systolic pressure in electro-acupuncture group and acupuncture group is significantly decreased than bed rest group at post-treat 20 mm. The mean pressure in electro-acupuncture group and acupuncture group is significantly decreased than bed rest group at treating 10 mm. Questionnaire shows that hypertension associated symptoms improved in electro-acupuncture group and acupuncture group are significant than bed rest group. But it is not significant difference between acupuncture group and electro-acupuncture group.