[Tongdu Tiaoshen acupuncture method for mild cognitive impairment: a randomized controlled trial]. 
To observe the clinical efficacy of Tongdu Tiaoshen acupuncture method for mild cognitive impairment in the elderly.  A total of 96 patients were randomly divided into an observation group, a control group and a waiting group, 32 cases in each group.  The patients in the observation group were treated with acupuncture at Baihui (GV 20), Shenting (GV 24), Yintang (GV 29) and Sishencong (EX-HN 1), etc, while the patients in the control group were treated with non-penetrating sham acupuncture at the same acupoints as the observation group.  The treatment was given once every other day, three times a week for 8 weeks.  The patients in the waiting group only received health guidance for 8 weeks.  Montreal cognitive assessment scale (MoCA) and mini-mental state examination (MMSE) were used before and after 8-week treatment in all three groups.  The observation group and the control group were followed up for 2 months and evaluated with MoCA and MMSE.  The MoCA scores in the observation group after treatment and during follow-up were higher than before treatment (P<0.01), but there was no significant difference between follow-up and after treatment (P>0.05).  The MoCA scores in the control group after treatment and during follow-up were higher than before treatment (P<0.01, P<0.05), and the MoCA score during follow-up was lower than after treatment (P<0.01).  There was no significant difference before and after treatment in the waiting group (P>0.05).  The difference before and after treatment in the observation group was higher than the control group and waiting group (P<0.01), while that in the control group was higher than the waiting group (P<0.01).  The difference between follow-up and before treatment in the observation group was higher than the control group (P<0.01), and the improving between follow-up and after treatment was superior to the control group (P<0.01).  The MMSE scores after treatment and during follow-up were higher than before treatment in the observation group (P<0.01), but there was no significant difference between the follow-up and after treatment (P>0.05).  The MMSE scores after treatment and during follow-up were higher than before treatment in the control group (P<0.01), and the MMSE score during follow-up was lower than after treatment (P<0.01).  There was no significant difference before and after treatment in the waiting group (P>0.05).  The difference before and after treatment the observation group and control group was not significant (P>0.05), and those in the two groups were higher than the waiting group (P<0.01).  The difference between follow-up and before treatment in the observation group was higher than the control group (P<0.01), and the difference between follow-up and after treatment was lower than the control group (P<0.01).  Tongdu Tiaoshen acupuncture method could improve cognitive impairment in elderly patients with mild cognitive impairment.