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Comparison of Transcutaneous electrical nerve stimulation and Laryngeal Manual Therapy in women with muscle tension dysphonia

Grant number: 13/20557-0
Support type:Scholarships in Brazil - Scientific Initiation
Effective date (Start): June 01, 2014
Effective date (End): May 31, 2015
Field of knowledge:Health Sciences - Speech Therapy
Principal researcher:Kelly Cristina Alves Silverio
Grantee:Mariana de Cássia Macedo
Home Institution: Faculdade de Odontologia de Bauru (FOB). Universidade de São Paulo (USP). Bauru , SP, Brazil


Muscle Tension Dysphonia (MTD) is a hyperfunctional alteration of phonation; it may be associated to benign injuries in the larynx, such as nodules and mucus thickness, more common in women. Recommended treatment uses techniques of cervical and laryngeal relaxation for restoring equilibrium to the intrinsic muscles of the larynx, in association with stimulation of mucosal wave of vocal folds, for lesion regression, when present. On the other hand, Transcutaneous Electrical Nerve Stimulation (TENS) it is used for control or relief of pain, improvement of vascularization in the region of the application, and muscular relaxation. TENS is considered a supporting resource in MTD. Objective: To evaluate the immediate effect of the application of TENS and Laryngeal Manual Therapy in voice, pain and symptoms of larynx regarding voice in women with MTD. Method: Subjects will be 30 dysphonic women with functional or organofunctional dysphonia. Subjects are divided in two groups: Group 1 (G1) - 15 individuals who will receive 1 session of TENS (200 µs and 10 Hz) for 20 minutes; Group 2 (G2) 15 individuals who will receive 1 session of Laryngeal Manual Therapy for 20 minutes. Voice and pain will be evaluated by means of an interview, and an auditory-perceptual and acoustic analysis. All evaluation will take place before and immediately after the realization of procedures in both groups. Data will be analyzed statistically using parametric tests.

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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)
MACEDO CONDE, MARIANA DE CASISA; DONALONSO SIQUEIRA, LARISSA THAIS; VENDRAMINI, JOSE EDUARDO; BRASOLOTTO, ALCIONE GHEDINI; DE JESUS GUIRRO, RINALDO ROBERTO; ALVES SILVERIO, KELLY CRISTINA. Transcutaneous Electrical Nerve Stimulation (TENS) and Laryngeal Manual Therapy (LMT): Immediate Effects in Women With Dysphonia. JOURNAL OF VOICE, v. 32, n. 3 MAY 2018. Web of Science Citations: 1.

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