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Author (up) Abbaszadeh-Amirdehi, M.; Ansari, N.N.; Naghdi, S.; Olyaei, G.; Nourbakhsh, M.R. url  doi
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  Title Therapeutic effects of dry needling in patients with upper trapezius myofascial trigger points Type of Study Journal Article
  Year 2016 Publication Acupuncture in Medicine : Journal of the British Medical Acupuncture Society Abbreviated Journal Acupunct Med  
  Volume Issue Pages  
  Keywords Myofascial Pain; Neurophysiology  
  Abstract BACKGROUND: Active myofascial trigger points (MTrPs) are major pain generators in myofascial pain syndrome. Dry needling (DN) is an effective method for the treatment of MTrPs. OBJECTIVE: To assess the immediate neurophysiological and clinical effects of DN in patients with upper trapezius MTrPs. METHODS: This was a prospective, clinical trial study of 20 patients with upper trapezius MTrPs and 20 healthy volunteers (matched for height, weight, body mass index and age), all of whom received one session of DN. Primary outcome measures were neuromuscular junction response (NMJR) and sympathetic skin response (SSR). Secondary outcomes were pain intensity (PI) and pressure pain threshold (PPT). Data were collected at baseline and immediately post-intervention. RESULTS: At baseline, SSR amplitude was higher in patients versus healthy volunteers (p<0.003). With respect to NMJR, a clinically abnormal increment and normal reduction was observed in patients and healthy volunteers, respectively. Moreover, PPT of patients was less than healthy volunteers (p<0.0001). After DN, SSR amplitude decreased significantly in patients (p<0.01), but did not change in healthy volunteers. A clinically important reduction in the NMJR of patients and increment in healthy volunteers was demonstrated after DN. PPT increased after DN in patients, but decreased in healthy volunteers (p<0.0001). PI improved after DN in patients (p<0.001). CONCLUSIONS: The results of this study showed that one session of DN targeting active MTrPs appears to reduce hyperactivity of the sympathetic nervous system and irritability of the motor endplate. DN seems effective at improving symptoms and deactivating active MTrPs, although further research is needed. TRIAL REGISTRATION NUMBER: IRCT20130316128.  
  Address Department of Physical Therapy, University of North Georgia, Dehlonega, Georgia, USA  
  Publisher
  Language English Number of Treatments  
  Treatment Follow-up Frequency Number of Participants  
  Time in Treatment Condition
  Disease Category OCSI Score  
  Notes PMID:27697768 Approved no  
  Call Number OCOM @ refbase @ Serial 2145  
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