Physiological impact of nanoporous acupuncture needles: Laser Doppler perfusion imaging in healthy volunteers


Autoři: Koh-Woon Kim aff001;  Sanhwa Hong aff002;  Hong Soo Kim aff004;  Taehun Kim aff002;  Jaeha Ahn aff002;  Hyun-Seo Song aff002;  Yu-Kang Kim aff002;  Ju-Young Oh aff002;  Tae-Yeon Hwang aff002;  Hyangsook Lee aff002;  Su-Il In aff004;  Hi-Joon Park aff002
Působiště autorů: Department of Korean Rehabilitation Medicine, College of Korean Medicine, Kyung Hee University, Dongdaemun-gu, Seoul, Republic of Korea aff001;  Acupuncture and Meridian Science Research Center, Kyung Hee University, Dongdaemun-gu, Seoul, Republic of Korea aff002;  Department of Meridian Medical Science, College of Korean Medicine, Graduate School, Dongdaemun-gu, Seoul, Republic of Korea aff003;  Department of Energy Science and Engineering, DGIST, Hyeonpung-myeon, Dalseong-gun, Daegu, Republic of Korea aff004;  Department of Anatomy and Information Science, College of Korean Medicine, Dongdaemun-gu, Seoul, Republic of Korea aff005
Vyšlo v časopise: PLoS ONE 14(12)
Kategorie: Research Article
doi: 10.1371/journal.pone.0226304

Souhrn

Background

Recently, porous acupuncture (PA), which is anodized to increase its surface area for higher stimulation intensity, was developed and showed significantly improved therapeutic effects with more comfort as compared with original acupuncture (OA) in vivo. However, the impact of PA on the change of local blood flow as well as its efficacy and acceptability has not yet been confirmed in a clinical trial. In a randomized, controlled crossover clinical trial, we investigated the effects of PA on the change in local blood flow using laser Doppler perfusion imaging and considered the sensation of pain intensity and discomfort severity using a visual analogue scale (VAS) to explore its physiological impact and the possibility of PA in clinical use.

Methods

Twenty-one healthy participants were randomly treated with PA or OA on one side of Zusanli (ST36) and each participant served as his or her own control. Baseline local blood flow and galvanic skin response (GSR) were obtained for 5 min and acupuncture interventions were subsequently performed. Next, local blood flow and GSR were subsequently obtained for 10 min after insertion, 10 min after manipulation, and 5 min after the withdrawal of acupuncture. At the end of the experiment, participants were asked to indicate the sensation of pain intensity at each session of insertion, retention, manipulation, and withdrawal as well as the overall pain intensity and discomfort severity.

Results

PA significantly increased the local blood flow as compared with OA and there was no significant difference in GSR between patients treated with PA versus OA in each phase of insertion and manipulation. No significant difference in pain intensity or discomfort severity was found during manipulation, retention, or withdrawal of acupuncture.

Conclusions

These results indicate that PA increases local blood flow, which can be closely related to the observed enhanced performance, without any associated discomfort or pain, suggesting its applicability in clinical practice.

Klíčová slova:

Acupuncture – Blood – Blood flow – Lasers – Pain sensation – Sensory perception – Fluid physiology – Doppler imaging


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