Author: Wang L, Huang T, Zhang W, Litscher G.
Research Unit of Biomedical Engineering in Anesthesia and Intensive Care Medicine and TCM Research Center Graz, Medical University of Graz, Graz, Austria.
Conference/Journal: J Acupunct Meridian Stud.
Date published: 2011 Mar
Other: Volume ID: 4 , Issue ID: 1 , Pages: 24-8 , Word Count: 151
Laser Doppler flowmetry for microcirculation monitoring was performed in 10 healthy volunteers (mean age ± SD: 24.9 ± 3.3 years; 5 females, 5 males) prior to, during, and after stimulation using a noninvasive violet (405 nm) laser needle at the Dazhui (GV14) acupoint. The results of this controlled study (control point at the shoulder) showed significant (p < 0.05) increases in Flux (product of concentration and velocity of erythrocytes) at a distance of 3 cm from the acupoint. At the same time, no changes were found at the control point. Furthermore, 5 minutes after stimulation the microcirculation still flowed at a higher level than baseline values at the beginning of the investigation. In a single individual it was demonstrated that needle acupuncture enhanced this effect and placebo (deactivated laser) did not have a significant effect. The results suggest that violet laser acupuncture at the acupoint Dazhui can increase vascular effects on microcirculation.
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