Effects of laser acupuncture therapy in pain treatment

Pao Yue-kong Library Electronic Theses Database

Effects of laser acupuncture therapy in pain treatment

 

Author: Wong, Wai
Title: Effects of laser acupuncture therapy in pain treatment
Year: 2001
Subject: Acupuncture
Hong Kong Polytechnic University -- Dissertations
Department: Jockey Club Rehabilitation Engineering Centre
Pages: xii, 132 leaves : ill. ; 30 cm
Language: English
InnoPac Record: http://library.polyu.edu.hk/record=b1604199
URI: http://theses.lib.polyu.edu.hk/handle/200/3414
Abstract: This thesis presents an investigation of the effectiveness of laser acupuncture. Laser acupuncture has been utilised as an approach for the treatment of pain that combines both traditional Chinese acupuncture and low-level laser therapy since its emergence in 1973. Its effects are not well understood and no standardised clinical protocol has been established. In this study, a diode laser (wavelength 680 nm, mean output power 30 mW) was used to irradiate four acupuncture points located on upper extremities over a 10-day period in order to investigate the effectiveness of laser acupuncture on treating pain. The laser acupuncture was applied daily and treatment lasted for three minutes on each acupuncture point. The median nerve conduction velocity was measured at 30-minute intervals on days one, five, and ten. Specifically, there were two independent experiments. The aim of the first was to study the effects of laser acupuncture on normal subjects. In this experiment, the effects of acupuncture were observed through an investigation of the changes of nerve conduction studies over time on eighteen normal volunteers. Results showed that motor nerve fibre was sensitive to laser acupuncture and there was a significant decrease in the motor conduction velocity after laser acupuncture (p < 0.001). It was also found that laser acupuncture resulted in a significant decrease in sensory nerve conduction velocity 30 minutes after application of laser acupuncture. The second experiment was conducted to investigate the efficacy of laser acupuncture on twelve patients with idiopathic bilateral carpal tunnel syndrome. Carpal tunnel syndrome is a common entrapment neuropathy with pain as the main symptom. Patients were given three sessions of laser acupuncture therapy with at least a week interval between successive sessions. Treatment outcome was quantified by patients' subjective feedback (McGill pain questionnaire, visual analogue scale) and objective measurements including physical examination, a grip-strength test, a pinch-strength test, and nerve conduction studies. A randomised single-blind controlled trial was adopted for the first session. From the second session, both hands of patients received real laser acupuncture treatment. The results, except those of the pinch-strength test and the nerve conduction test, indicated that laser acupuncture could improve patient's condition (p < 0.05) after the first session. It was found that the patient's condition was improved more significantly (p< 0.001) after two or more sessions of laser acupuncture treatment. The results also showed that the amount of increase in motor nerve conduction velocity decreased with time and the sensory nerve conduction velocity increased with time. These results suggested that laser acupuncture could improve the condition of patients with idiopathic carpal tunnel syndrome. Further research is recommended to explore the clinically dominant position of laser acupuncture therapy on treating carpal tunnel syndrome or other diseases according to present therapeutic protocol. More research is also needed for the better understanding of the mechanism of laser acupuncture therapy.

Files in this item

Files Size Format
b16041999.pdf 4.977Mb PDF
Copyright Undertaking
As a bona fide Library user, I declare that:
  1. I will abide by the rules and legal ordinances governing copyright regarding the use of the Database.
  2. I will use the Database for the purpose of my research or private study only and not for circulation or further reproduction or any other purpose.
  3. I agree to indemnify and hold the University harmless from and against any loss, damage, cost, liability or expenses arising from copyright infringement or unauthorized usage.
By downloading any item(s) listed above, you acknowledge that you have read and understood the copyright undertaking as stated above, and agree to be bound by all of its terms.

     

Quick Search

Browse

More Information