BACKGROUND Myofascial pain is defined as pain that originates from myofascial trigger points in skeletal muscle. It is prevalent in regional musculoskeletal pain syndromes, either alone or in combination with other pain generators. The myofascial pain syndrome is one of the largest groups of under diagnosed and under treated medical problems encountered in clinical practice. Trigger points are ...

www.eymj.org We read with great interest the article by Shin, et al. in the May 2014 issue of the Yonsei Medical Journal. The authors described the application of ultrasound-guided (USG) trigger point injection for myofascial trigger points in the subscapularis and pectoralis muscles to post-mastectomy patients. The article was supported by four USG pictures. We, as anesthesiologists, have been...

OBJECTIVE To test the hypothesis that dry needle stimulation of a myofascial trigger point (sensitive locus) evokes segmental anti-nociceptive effects. DESIGN Double-blind randomized controlled trial. SUBJECTS Forty subjects (21 males, 19 females). METHODS Test subjects received intramuscular dry needle puncture to a right supraspinatus trigger point (C4,5); controls received sham intramu...