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Evidence-Based Complementary and Alternative Medicine
Volume 2015, Article ID 385136, 7 pages
http://dx.doi.org/10.1155/2015/385136
Research Article

Pain-Induced Pulsograph Changes in Patients with Primary Dysmenorrhea: A Pilot Study

1Department of Diagnostics of Traditional Chinese Medicine, School of Preclinical Medicine, Beijing University of Chinese Medicine, Beijing 100029, China
2School of Basic Medicine Sciences, Guilin Medical University, Guangxi, Guilin 541004, China
3School of Acupuncture and Moxibustion, Beijing University of Chinese Medicine, Beijing 100029, China
4Department of Gynecology, Dongzhimen Hospital, Beijing University of Chinese Medicine, Beijing 100700, China
5School of Humanities, Beijing University of Chinese Medicine, Beijing 100029, China

Received 28 March 2015; Revised 7 August 2015; Accepted 10 August 2015

Academic Editor: Baiyun Zeng

Copyright © 2015 Wan-hong Chen et al. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

Abstract

Objectives. To investigate changes in pulsograph caused by pain in primary dysmenorrhea (PD) patients. Methods. Pulsograph and pain level of PD patients were detected using electropulsograph and Visual-Analogue Scale (VAS), respectively, at four time points, 7–10 days before menstruation , maximal pain during menstruation , immediately after acupuncture analgesia , and 30 mins after acupuncture analgesia . Parameters (, , ) and normalized time parameters (t′) of pulsograph were analyzed. Results. VAS pain scores decreased from 6.40 ± 1.13 at to 0.70 ± 0.75 at to 0.11 ± 0.32 at ( and 0.001). At , compared with those at , , , and significantly increased (), and t2, t2′, t3′, and h(d) significantly decreased (, 0.001, 0.05, and 0.001). At , compared with those at , , , , , , t1′, and t4′ significantly decreased (, 0.01, 0.01, 0.001, 0.01, 0.001, and 0.05), and h(d) significantly increased (). There was no difference between and . Conclusions. There are almost opposite changing trends in pulsographic parameters when pain occurs and when it is relieved in PD patients.