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Single or Multiple Electroacupuncture Sessions in Nonspecific Low Back Pain: Are We Low-Responders to Electroacupuncture?

2018; Elsevier BV; Volume: 11; Issue: 2 Linguagem: Inglês

10.1016/j.jams.2018.02.002

2093-8152

Ravena Carolina de Carvalho, Júlia Risso Parisi, Wiliam A. Prado, João Eduardo de Araújo, Andréia Maria Silva, Josie Resende Torres da Silva, Marcelo Lourenço da Silva,

Musculoskeletal pain and rehabilitation

The objective of this study was to compare the effects of one or multiple sessions of electroacupuncture (EA) in patients with chronic low back pain. The outcome measures were visual analog score (VAS), pressure pain threshold (PPT), McGill pain questionnaire (MPQ), Roland Morris disability questionnaire (RMDQ), low back skin temperature, surface electromyography of longissimus muscle (contraction/rest) and blood cytokines. After examination (AV0), patients were submitted to EA (2 Hz, 30 minutes, bilaterally at the SP6, BL23, BL31, BL32, BL33, and BL60) and were revaluated after one week (AV1). Patients with VAS <3 (VAS 3 (VAS >3 group, n = 20) were submitted to one weekly EA-treatment and revaluated after three weeks (AV2). The VAS 3 group showed reduction in VAS and increased PPT in AV1 and a reduction in MPQ and RMDQ only in AV2. No significant differences were found in electromyography, temperature or cytokines. Thus, despite 2Hz-EA is effective reducing low back pain, some patients only experienced reduced pain intensity and improved functional capacity after full treatment.