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Effectiveness of transcutaneous electrical nerve stimulation (TENS) in dysphonic women voice therapy: a randomized controlled trial and double blind

Grant number: 14/00834-1
Support Opportunities:Scholarships in Brazil - Doctorate
Effective date (Start): November 01, 2014
Effective date (End): March 31, 2016
Field of knowledge:Health Sciences - Speech Therapy
Acordo de Cooperação: Coordination of Improvement of Higher Education Personnel (CAPES)
Principal Investigator:Kelly Cristina Alves Silverio
Grantee:Larissa Thaís Donalonso Siqueira
Host Institution: Faculdade de Odontologia de Bauru (FOB). Universidade de São Paulo (USP). Bauru , SP, Brazil


Introduction: muscle tension dysphonia (DTM) is defined as a change of hyperfunctional phonation; may or may not be associated with benign lesions of the larynx, such nodules and mucosal thickening, more common in women. Techniques for the treatment of cervical and laryngeal relaxation are recommended, concurrently with the stimulation of mucosal wave of the vocal folds, aiming to regression of lesions. The Transcutaneous Electrical Nerve Stimulation (TENS) is used to control or pain relief, improved vascularization of the applied area, muscle relaxation, may be considered an adjunctive therapeutic resource in the DTM. Objective: To assess the effectiveness of TENS in the treatment of vocal dysphonic women. Method: 34 teachers will participate, 18 to 45 years old, dysphonic, with bilateral vocal nodules or bilateral mucosal thickening and glottic closure, divided into two groups, randomly: Group 1 (Experimental) - 17 individuals who will receive 12 sessions of TENS (pulse: 200 mS, frequency: 10 Hz , motor threshold), with electrodes placed on the trapezius muscle - upper fibers and submandibular region, both bilaterally for 20 minutes, 30 minutes associated with traditional therapy voice, Group 2 (placebo) - 17 individuals who will undergo 12 sessions of TENS placebo (G1 same conditions, but without receiving the stimulus in the form of electrical current) for 20 minutes to 30 minutes associated with traditional voice therapy. Before and after speech therapy, will comprise reviews: Application of quality of life in voice protocol (V-RQOL), perceptive auditiva analysis and acoustic voice signals and application of vocal symptoms questionnaire, a questionnaire for investigation of pain symptoms, evaluation of the larynx by means of (naso) laryngoscopy. The data will be tabulated in Microsoft Excel and statistically analyzed comparing the two groups of speech therapy, as well as the pre and post therapy in both groups. (AU)

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Scientific publications
(References retrieved automatically from Web of Science and SciELO through information on FAPESP grants and their corresponding numbers as mentioned in the publications by the authors)
DONALONSO SIQUEIRA, LARISSA THAIS; RIBEIRO, VANESSA VEIS; MEDEIROS MOREIRA, PAMELA APARECIDA; BRASOLOTTO, ALCIONE GHEDINI; DE JESUS GUIRRO, RINALDO ROBERTO; ALVES SILVERIO, KELLY CRISTINA. Effects of transcutaneous electrical nervous stimulation (TENS) associated with vocal therapy on musculoskeletal pain of women with behavioral dysphonia: A randomized, placebo-controlled double-blind clinical trial. JOURNAL OF COMMUNICATION DISORDERS, v. 82, . (14/00834-1)
Academic Publications
(References retrieved automatically from State of São Paulo Research Institutions)
SIQUEIRA, Larissa Thaís Donalonso. Effectiveness of Transcutaneous Electrical Nerve Stimulation (TENS) in voice therapy of dysphonic women: control, randomized and double blind clinical trial. 2016. Doctoral Thesis - Universidade de São Paulo (USP). Faculdade de Odontologia de Bauru (FOB/SDB) Bauru.

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