AcuTrials

Two-Dimensional Ultrasound and Ultrasound Elastography Imaging of Trigger Points in Women with Myofascial Pain Syndrome Treated by Acupuncture and Electroacupuncture: A Double-Blinded Randomized Controlled Pilot Study.

Item

Title

Two-Dimensional Ultrasound and Ultrasound Elastography Imaging of Trigger Points in Women with Myofascial Pain Syndrome Treated by Acupuncture and Electroacupuncture: A Double-Blinded Randomized Controlled Pilot Study.

Journal Publication

Ultrasonic imaging

Date

2014

Research Type

RCT

Keywords

Myofascial Pain Syndromes
Musculoskeletal Diseases
Electroacupuncture
TCM Acupuncture Style
Ashi Acupuncture Style
Semi-Individualized Acupuncture Protocol
Symptom Based Point Selection
Restricted Modalities, Acupuncture Only
Superficial Needling Depth
Near Verum Acupoint Control
Myofascial Trigger Points

Abstract

Chronic pain has been often associated with myofascial pain syndrome (MPS), which is determined by myofascial trigger points (MTrP). New features have been tested for MTrP diagnosis. The aim of this study was to evaluate two-dimensional ultrasonography (2D US) and ultrasound elastography (UE) images and elastograms of upper trapezius MTrP during electroacupuncture (EA) and acupuncture (AC) treatment. 24 women participated, aged between 20 and 40 years (M +/- SD = 27.33 +/- 5.05) with a body mass index ranging from 18.03 to 27.59 kg/m2 (22.59 +/- 3.11), a regular menstrual cycle, at least one active MTrP at both right (RTPz) and left trapezius (LTPz) and local or referred pain for up to six months. Subjects were randomized into EA and AC treatment groups and the control sham AC (SHAM) group. Intensity of pain was assessed by visual analogue scale; MTrP mean area and strain ratio (SR) by 2D US and UE. A significant decrease of intensity in general, RTPz, and LTPz pain was observed in the EA group (p = 0.027; p < 0.001; p = 0.005, respectively) and in general pain in the AC group (p < 0.001). Decreased MTrP area in RTPz and LTPz were observed in AC (p < 0.001) and EA groups (RTPz, p = 0.003; LTPz, p = 0.005). Post-treatment SR in RTPz and LTPz was lower than pre-treatment in both treatment groups. 2D US and UE effectively characterized MTrP and surrounding tissue, pointing to the possibility of objective confirmation of subjective EA and AC treatment effects.

doi

10.1177/0161734614546571

Frequency of Treatment

>1/WK

Time in Treatment

4 Weeks

has health condition studied

Pain

has study population number

24

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