单刺十七椎对原发性痛经患者止痛作用时效规律的观察

目的观察单刺十七椎对原发性痛经患者止痛作用的时效规律。方法单刺十七椎,留针30min,分别记录针刺前即时和留针5min、10min、20min、30min及起针后30min、60min、120min的VAS读值,然后进行统计分析。结果留针30min条件下,单刺十七椎的止痛作用持续加强,直至起针;起针50min后,针刺止痛作用衰减为接近峰值的一半。结论单独针刺十七椎,留针30min的止痛作用优于留针短于30min的止痛效果。针刺十七椎时,留针30min条件下的半衰期较短,对于痛经持续时间在1d左右或更长的患者,针刺频次以每天针刺2次为宜。

Observations on the Analgesic Time-effect Regularity of Acupuncture only at Shiqizhui (Extra 18) in Primary Dysmenorrhea Patients

Objective To investigate the analgesic time-effect regularity of acupuncture only at Shiqizhui （Extra 18） in primary dysmenorrhea patients. Methods A needle was inserted into Shiqizhui （Extra 18） only and retained for 30 min. The VAS score was counted just before acupuncture, after 5, 10, 20, and 30 min retention of the needle, and at 30, 60 and 120 min after withdraw of the needle. Statistical analysis was then made. Results During 30 min retention of the needle, the analgesic effect of Acupuncture only at Shiqizhui （Extra 18） improved increasingly until the needle was taken out. The analgesic effect of acupuncture weakened to nearly half of the maximum at 50 min after withdraw of the needle. Conclusion The analgesic effect of acupuncture only at Shiqizhui （Extra 18） will be better in 30 min retention of the needle than in less. The half life time of the analgesic effect of acupuncture only at Shiqizhui （Extra 18） is shorter if the needle is retained for 30 min and therefore, an appropriate frequency of acupuncture is twice a day for patients with dysmenorrhea lasting about or longer than one day.