留针与否对针刺足三里改变胫前动脉血流动力学的影响

Effects of needle retaining at Zusanli(ST 36) on hemodynamic change of anterior tibial artery

目的:观察留针与否对血流动力学参数的影响,探讨留针的意义。方法:健康成年志愿者26例,随机分为留针组13例,不留针组13例。针刺左侧足三里。采用彩色多普勒超声观察足三里远端1cm处胫前动脉针刺前、"得气"后即刻及得气后1 min、2 min、3 min、4 min和5 min各项血流参数;比较两组运针"得气"后各时间点与针刺前比较血流参数差值间的差异。结果:留针组与不留针组血流动力学参数收缩期峰值(Vmax)和平均流速(Vm)在运针得气后即刻、1 min、2 min、3 min、4 min和5 min时分别与针刺前比较,各时间点与针刺前比较的差值,两组间差异无统计学意义(P>0.05)。结论:"留针"对局部的血管血流动力学改变无特殊意义。

Objective To observe the effects of needle retaining on hemedynamic change and investigate the significance of retaining needle： Methods Manual acupuncture was performed at the left Zusanli（ST 36） of 26 healthy adult volunteers who have not receiued acupuncture. 26 cases were randomly divided into a needle retaining group and a quick needling group, 13 cases in each group. Hemodynamic parameters of the anterior tibial artery were observed with color Doppler ultrasound before needling and 0, 1, 2, 3, 4 and 5 minutes after needle manipu- lation. Hemodynamic parameters were also compared between the two groups 0, 1, 2, 3, 4 and 5 minutes after needle manipulation. Results There were no significant difference in Vmax and Vm between 0, 1, 2, 3, 4 and 5 minutes after needling manipulation （all P〉0.05）. Conclusion Needle retaining can not change regional hemodynamic.