[Clinical observation on therapeutic effect of electroacupuncture at Quchi (LI 11) for treatment of essential hypertension].

Objective: To observe the therapeutic effect of electroacupuncture (EA) at Quchi (LI 11) on blood pressure and blood plasma catecholamines in the patient of essential hypertension and to investigate the mechanism.

Methods: Sixty cases of essential hypertension were randomly divided into an EA group (n=30) and a control group (n=30). In the EA group, bilateral Quchi (LI 11) were selected; and in the control group, western medicine Nicardipine was taken.