Dysphonia
Conditions
Interventions
This is an experimental study (Phase 2 of experimental studies) carried out with 30 dysphonic women aged between 18 and 45 with a body mass index (BMI) below 30. The participants were randomized by lo
Group 2 (G2): Infrared laser at 9 Joules (J) per point (total 63 J) followed by TVSL. The participants were selected and allocated using stratified randomization by laryngeal diagnosis in order to fo
E02.594.540
Sponsors
Universidade Federal de Minas Gerais
Universidade Federal de Minas Gerais
Eligibility
Sex/Gender
Female
Age
18 Years to 45 Years
Inclusion criteria
Inclusion criteria: Vocally healthy participants - women aged 18 to 45; no vocal complaints or laryngeal injuries; neutral vocal quality. Dysphonic participants - women aged 18 to 45; with complaints or altered vocal quality or diagnosis of benign lesions of the larynx
Exclusion criteria
Exclusion criteria: Pregnant women; women in the premenstrual period; with an allergic reaction, and/or respiratory condition on the day of the assessment; with a systemic, neurological, and/or neoplastic disease; smokers; women who had been previously submitted to speech-language-hearing and/or surgical treatment due to voice changes; who were photosensitive or had a skin disease/lesion; who had a tattoo in the region where light would be applied; and those who reported taking skin treatment medications
Design outcomes
Primary
| Measure | Time frame |
|---|---|
| Expected outcome 1: It is expected to find an improvement in vocal quality with measurement using the Visual Analog Scale.;Outcome found 1: An improvement in vocal quality was found after the experiments, with a reduction in the average degree of dysphonia from 37.67 to 34.53 in the analysis of sustained vowels and from 32.07 to 31.07 in connected speech;Expected outcome 2: We expected to find an increase in maximum phonation time after the experiment, with measurement of maximum sustained emission time in seconds;Outcome found 2: An increase in the mean maximum phonation time from 9.13 to 10.13 seconds was observed after experimental treatment;Expected outcome 3: Evaluate change in multiparametric indices and cepstral measures from acoustic analysis;Outcome found 3: There was an increase in the mean cepstral peak prominence-smoothed (CPPS) from 12.66 to 14.11 dB;Expected outcome 4: It is expected to observe a reduction in phonatory effort after the experiment with measurement using the Phonatory Effort Scale (Borg CR10-BR adapted for vocal effort);Outcome found 4: The Borg CR10-BR Scale adapted for vocal effort showed a reduction in phonatory effort from 3.4 to 1.53;Expected outcome 5: Evaluate change in laryngeal configuration after perceptual-visual image analysis ;Expected found 5: There was an improvement in the vibratory pattern of the vocal folds in 60% of the participants after experimental treatment | — |
Secondary
| Measure | Time frame |
|---|---|
| No secondary outcomes expected | — |
Countries
Brazil
Contacts
Public ContactViviane Bacelete
Universidade Federal de Minas Gerais
Outcome results
None listed