针刺治疗痛经止痛作用时效的临床研究(英文)

目的:观察针刺单穴、多穴对重度原发性痛经患者止痛作用的时效规律。方法:将 20 位原发性痛经重度疼痛患者随机分为单穴组和多穴组。每组观察 15 人次,每次均留针 30 min,分别记录针刺前即时,进针 5 min、10 min、20 min、30 min,及起针后 30 min、60 min、120 min的疼痛视觉模拟评分(Visual Analogue Scale, VAS)值,然后进行统计分析。结果:针刺后,两组的止痛作用产生迅速,留针 30 min内,两组患者的止痛作用均持续加强,直至出针;进针 20 min时多穴组的即时止痛作用明显优于单穴组(P<0.05),这种趋势一直维持到起针后 2 h。结论:针刺单穴、多穴对重度原发性痛经患者均有明显的即时止痛作用,且两组针刺作用的时效规律具有相同的变化趋势,但针刺多穴的即时止痛作用在多个时点明显优于针刺单穴。

Clinical study on time-effect relation of acupuncture for pain due to dysmenorrhea

Objective:To observe the time-effect relationship of needling a single point or multiple points for pain relief in patients with severe primary dysmenorrhea. Methods:A total of 20 cases with severe primary dysmenorrhea were randomly allocated into a group of single point. In each treatment,the needles retained for 30 min and 15 person times were observed in each group. The VAS(Visual Analogue Scale) values were recorded immediately before needling,5min,20 min and 30min upon insertion,and 30 min,60 min and 120 min upon withdrawal for statistical analysis. Results:Immediate pain relief occurred following acupuncture and the pain-alleviating effect was incremented within the 30 min of needle retaining. At 20 min upon needle insertion,the pain relief from needling multiple points appeared substantially stronger than needling a single point(P<0.05)and this effect remained until 2 h after withdraw of the needles. Conclusion:Needling a single point or multiple points can both produce remarkably immediate pain relief for patients with severe primary dysmenorrhea and share similar time-effect relationship. However,needling multiple points showed substantially better effects than needling a single point in a number of time points.