The reinforcing effect of transcutaneous acupoint electric stimulation(TAES)on enflurane anesthesia during craniotomy was studied.One hundred and ten neurosurgical patientswere randomly divided into three groups.Anesthesia was maintained with enflurane in Group A(n=40).In Group B,enflurane anesthesia was supplemented by TAES with Han’s acupoint nerve stimu-lator(HANS)at Hegu(LI 4),Yuyao(EX-HN 4)and Fengchi(GB 20)points on the operated side(n=40).In Group C,enflurane anesthesia was supplemented by TAES and scalp infiltration with 0.5％procaine solution(n=30).The results showed that the minimum alveolar concentration(MAC)of enflurane in Group B and C decreased by 37.8-47.0％and 42.1-66.1％respectively than thatin Group A.The hemodynamics was more stable during operation,and the patients recovered after operation in group B and C.It was concluded that TAES with HANS significantly the anesthetic effect and decreased the side effects of enflurane during operation,and that the triplecombination of TAES,enflurane and scalp infiltration with procaine appeared to be a better anestheticmethod for craniotomy.
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