This research apply Dingkun Dan to treat patients with
dysmenorrhea of cold stagnation and blood stasis syndrome. This study observed its effectiveness and safety of the treatment of the disease and its influence on the serum
prostaglandin F2α, endothefin, pulsatility index and resistant index of uterine artery blood, to explore the possible mechanism of effect of Dingkun Dan in the treatment of
dysmenorrhea and provide scientific basis for clinical application. The 75 patients with
dysmenorrhea of cold stagnation and blood stasis who met the inclusion criteria, were divided into treatment group (n=37) and control group (n=38) by using random number remainder grouping method. In the treatment group patients were treated with Dingkun Dan, the other group were given Fuke Zaizao Jiaonang. Two groups have same time to take the medicine, three days prior to the menstruation for ten days. Medication for three menstrual cycles was seen as a course of treatment. To observe and compare the two groups of patients before and
after treatment VAS score, syndrome integral, serum levels of
prostaglandin F2α and
endothelin, pulsation index and resistance index of uterine artery blood flow and related safety index changes. Finally makes statistical analysis. It has been identified that, Treatment group and control group can reduce
pain symptom of
dysmenorrhea patients and improve the syndromes scores, compare with control group, effect of the treatment group is more significant(P<0.01). VAS
pain curative effect: the treatment group and control group total effective rate respectively were, 97.22%, 69.44%, markedly effective rate were 83.33%, 30.56%, comparison between two groups, treatment group is better than that of control group(P<0.01). Syndromes curative effect: the treatment group and control group total effective rate respectively were 97.22%, 94.44%, markedly effective rate was 66.67%, 2.78%, respectively. The comparison between two groups, the total effective rate has no obvious difference, but markedly effective rate of treatment group is better than that of control group(P<0.01). The treatment group can significantly reduce the patients' serum level of
prostaglandin F2α(P<0.01), but no obvious difference was found in the control group before and
after treatment. Both groups can significantly reduce the serum level of
endothelin(P<0.01), comparison between two groups, the treatment group is more significant(P<0.01).Both treatment group and control group were significantly lower left and right pulsation index and resistance index of uterus artery blood flow(P<0.01). Between groups to compare the effect, the treatment group is more significant(P<0.01). Both treatment group and control group in the security check before and
after treatment found no significant anomalies. Dingkun Dan in treating
dysmenorrhea with cold stagnation and blood stasis syndrome seems to have remarkable clinical curative effect and safety, which may be achieved by significantly reducing the serum level of
prostaglandin F2αand endothefin of the patients, and reducing the pulsation index and resistance index of uterine artery blood flow of the patients, to improve uterine artery condition of blood, and correcting local tissue
ischemia to relieve
pain.