title: Does Traditional Chinese Medicine pattern affect acupoint specific effect? Analysis of data from a multicenter, randomized, controlled trial for primary dysmenorrhea.
abstract: OBJECTIVE
  This study assessed the importance of the Traditional Chinese Medicine (TCM) pattern on an acupoint-specific effect.
  
  
  METHODS
  This was a TCM pattern subdivision analysis of the first intervention data from a multicenter, randomized, controlled trial (ISRCTN24863192) (the main trial).
  
  
  METHODS
  The main trial recruited participants from six hospitals in three provinces in China.
  
  
  METHODS
  Five hundred and one (501) participants diagnosed with primary dysmenorrhea (PD) were enrolled in the main trial.
  
  
  METHODS
  The main trial randomly and equally divided participants into three treatment groups with bilateral electroacupuncture at three sites, respectively: Sanyinjiao (SP6), Xuanzhong (GB39), and an adjacent nonacupoint. Participants were diagnosed with TCM patterns before the treatment. The intervention was carried out when the visual analogue scale (VAS) score of participant's menstrual pain was ≥ 40 mm on the first day of menstruation and lasted for 30 minutes.
  
  
  METHODS
  The immediate improvement of pain was measured with a 100-mm VAS before the intervention, at 5 minutes, 10 minutes, and 30 minutes during the intervention, and at 30 minutes after the completion of this intervention.
  
  
  RESULTS
  Three (3) TCM patterns (n=320) were eligible for analysis, including Cold and Dampness Stagnation pattern (n=184), Qi and Blood Stagnation pattern (n=84), and Qi and Blood Deficiency pattern (n=52). In Cold and Dampness Stagnation pattern, the SP6 group had a significant reduction in VAS scores compared with the GB39 group (mean difference -7.6 mm) and the nonacupoint group (mean difference -8.2 mm), respectively. There was no difference between the latter two groups. There were no group differences in VAS scores in the other two patterns.
  
  
  CONCLUSIONS
  It suggested that TCM pattern might affect acupoint specific effect on the immediate pain relief obtained for participants with PD.
authors: School of Acupuncture-Moxibustion and Tuina, Beijing University of Chinese Medicine, Beijing, China.
authors: Yu-qi
authors: YQ
authors: Liu
authors: Liang-xiao
authors: LX
authors: Ma
authors: Jian-min
authors: JM
authors: Xing
authors: Hui-juan
authors: HJ
authors: Cao
authors: Yan-xia
authors: YX
authors: Wang
authors: Ling
authors: L
authors: Tang
authors: Min
authors: M
authors: Li
authors: Ying
authors: Y
authors: Wang
authors: Yan
authors: Y
authors: Liang
authors: Ling-yun
authors: LY
authors: Pu
authors: Xiao-mei
authors: XM
authors: Yu
authors: Li-zhu
authors: LZ
authors: Guo
authors: Ji-ling
authors: JL
authors: Jin
authors: Zhe
authors: Z
authors: Wang
authors: Hong-mei
authors: HM
authors: Ju
authors: Yu-mei
authors: YM
authors: Jiang
authors: Jing-jun
authors: JJ
authors: Liu
authors: Hong-wen
authors: HW
authors: Yuan
authors: Chun-hua
authors: CH
authors: Li
authors: Peng
authors: P
authors: Zhang
authors: Yan-fen
authors: YF
authors: She
authors: Jian-ping
authors: JP
authors: Liu
authors: Jiang
authors: J
authors: Zhu
mesh_terms: D015669:Acupuncture Points; D000328:Adult; D003937:Diagnosis, Differential; D004412:Dysmenorrhea / Q000175:diagnosis / Q000628:therapy; D015671:Electroacupuncture; D005260:Female; D006801:Humans; D008516:Medicine, Chinese Traditional; D008598:Menstruation; D010147:Pain Measurement; D012720:Severity of Illness Index; D055815:Young Adult