• Medicine · Aug 2016

    Randomized Controlled Trial

    Effect of extracorporeal shock wave therapy on scar pain in burn patients: A prospective, randomized, single-blind, placebo-controlled study.

    • Yoon Soo Cho, So Young Joo, Huisong Cui, Sung-Rae Cho, Haejun Yim, and Cheong Hoon Seo.
    • aDepartment of Rehabilitation Medicine, Hangang Sacred Heart Hospital, College of Medicine, Hallym University bDepartment and Research Institute of Rehabilitation Medicine, Yonsei University College of Medicine cDepartment of Burn Surgery, Burn Center, Hangang Sacred Heart Hospital, College of Medicine, Hallym University, Seoul, Korea.
    • Medicine (Baltimore). 2016 Aug 1; 95 (32): e4575.

    BackgroundExtracorporeal shock wave therapy (ESWT) has been used to reduce pain in patients with various musculoskeletal diseases and wounds. We investigated the effect of ESWT on scar pain after complete wound epithelialization in burn patients.MethodsA prospective, single-blind, placebo-controlled study was conducted from February 2014 to 2015. Forty patients with burn scar pain despite standard therapy (medication, physical therapy, and burn rehabilitation massage therapy) were randomized into ESWT or control (sham ESWT) groups. ESWT was administered at 100 impulses/cm (0.05-0.15 mJ/mm) once per week for 3 weeks. The treatment effects were assessed using the numerical rating scale (NRS), pain threshold, Nirschl pain phase system, and Roles and Maudsley scores.ResultsThe characteristics of patients between the 2 study groups were balanced (P >0.05) for age, sex, and total burn surface area (%). In both groups, the NRS, pain threshold (Ib/cm), and Nirschl pain phase system values significantly improved (P <0.05) after 3 sessions of ESWT or sham therapy, and there were significant differences between the 2 groups in terms of these 3 variables (P <0.001, P <0.001, P = 0.013, respectively). The Roles and Maudsley scores significantly improved; among 20 patients, 17 reported a score of poor (85%) and 3 reported fair (15%) before ESWT, whereas 3 reported poor (15%), 8 reported fair (40%), 5 reported good (25%), and 4 reported excellent (20%) after ESWT (P = 0.004). The scores did not improve in the control group (P = 0.128).ConclusionESWT significantly reduced scar pain in burn patients after wound recovery.

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