Floating Ball Voice Therapy: Preliminary Effects on Outcomes and Predicting Individual Patient Differences in Generalization.

PURPOSE: Floating ball voice therapy (FBVT) is a voice-controlled virtual environment based on a common treatment component across multiple evidence-based therapies: improved vocal efficiency (target) via practicing voicing with modified resonance and airflow (ingredient). This study preliminarily tested FBVT's effects on outcomes and the potential for its novel variability metrics to predict individual patient generalization. METHOD: Ten patients with nonphonotraumatic vocal hyperfunction (NPVH) practiced FBVT for 10 days. Outcomes were assessed by a vocal efficiency ratio, a validated NPVH index, the patient-reported Voice-Related Quality of Life (V-RQOL), and forced-choice auditory judgments of overall severity. Exploration in early practice (Day 1) was estimated by how the patient's two-dimensional variability (mean airflow and intensity) related to error (difference between the patient-produced and normative vocal efficiency ratio). Generalization from the game to spontaneous speech was evaluated using the validated NPVH index. RESULTS: Ten days of FBVT were associated with improved vocal efficiency (Cohen's d = 1.3), NPVH index (d = -1.1), V-RQOL total score (d = 0.9), and overall severity (odds ratio = 2.5). Patients who generalized on Day 10 exhibited airflow/intensity exploration that was more aligned with the error gradient on Day 1 (d = 0.6-1.2). CONCLUSIONS: A relatively small dosage of FBVT (i.e., 10 practice sessions) was associated with multiple improved voice therapy outcomes. The FBVT variability metrics on Practice Day 1 demonstrated strong potential to predict which patients generalized to connected speech. Future work can more thoroughly evaluate effects on outcomes and characterizing the quality of vocal exploration with a larger patient population. SUPPLEMENTAL MATERIAL: https://doi.org/10.23641/asha.27040873.

Velopharyngeal Gap Size During Sustained Vowel Production Correlates With Perceptual Ratings of Hypernasality in Connected Speech.

PURPOSE: The purpose of this study was to investigate the relationship between perceptual ratings of hypernasality made during connected speech and velopharyngeal (VP) gap size measured in millimeters in the sagittal plane during sustained vowel production using magnetic resonance imaging (MRI). METHOD: A retrospective cross-sectional analysis was completed. A subgroup of 110 participants from another study with an Mage of 10.1 years presenting for management of VP insufficiency was included. Perceptual ratings of hypernasality during connected speech and measurement of gap size during sustained /i/ production on MRI were performed by raters blinded to the participants' medical and surgical history. RESULTS: There was a moderate-to-strong, positive correlation (r = .61; p < .001) between hypernasality ratings and VP gap size measured on MRI using sustained /i/. The odds of a higher hypernasality rating increased as the gap size increased (odds ratio = 1.34; 95% CI [1.20, 1.49]; p < .001). The predicted probability for hypernasality ratings of none/minimal/mild steadily decreased as the gap size increased indicating that lower ratings of hypernasality were associated with smaller gap sizes. For the rating of "moderate" hypernasality, the predicted probability of the rating steadily increased up to 8 mm and then decreased as the gap size continued to increase. The predicted probability for a hypernasality rating of "severe" consistently increased as the gap size increased. CONCLUSIONS: Hypernasality ratings made at the connected speech level were significantly associated with VP gap size as measured during sustained vowel production. These findings suggest sustained vowel production elicited on MRI may adequately characterize VP gap size in the evaluation of VP insufficiency.

Self-perception of voice and knowledge of vocal health and hygiene in Candomblé religious leaders in Brazil. / Autopercepção da voz e conhecimento em saúde e higiene vocal de líderes religiosos do Candomblé no Brasil.

PURPOSE: To verify possible complaints, voice and aerodigestive symptoms, singing voice handicap, and knowledge of vocal health and hygiene in Candomblé religious leaders in Brazil. METHODS: The study comprised 112 individuals who filled out a questionnaire with their identification and characterization, the stratified classification of their professional activities, and their self-perception of voice. Three self-assessment protocols - VoiSS, QSHV, and MSHI - were also used. RESULTS: The self-assessment of voice ranged from average to good. VoiSS mean total score was 23.04, which is above the cutoff. QSHV mean score was 23.54 points, which is near the cutoff. MSHI mean score (the perception of singing voice handicap) was 25.66 points. There was a substantially strong positive correlation between VoiSS and MSHI total scores (0.789; p<0.001). Women had higher limitation scores (p=0.012) and total scores (p=0.012) in VoiSS and higher handicap scores (p=0.038) in MSHI. Level I professionals - vocal elite (singers and actors) - had significantly higher QSHV scores than those in levels IV (p=0.010) and V (p=0.008). Most respondents had not visited an otorhinolaryngologist (89.29%) within the last year and had not been submitted to speech therapy (83.04%) for voice complaints. CONCLUSION: Candomblé leaders, particularly women, perceived voice symptoms and singing voice handicaps, with no relationship with their knowledge of vocal health and hygiene. Despite the complaints, most subjects reported not having visited health professionals responsible for voice care within the last year.

OBJETIVO: Verificar a autopercepção de sintomas vocais e aerodigestivos, desvantagem vocal no canto e o conhecimento em saúde e higiene vocal em líderes religiosos do Candomblé do Brasil. MÉTODO: Participaram deste estudo 112 indivíduos, que preencheram virtualmente um questionário de identificação, caracterização, classificação das atividades profissionais em níveis e autoavaliação vocal no momento atual, além de três protocolos de autoavaliação: Escala de Sinais e Sintomas (ESV), Questionário de Saúde e Higiene Vocal (QSHV) e Índice de Desvantagem para o Canto Moderno (IDCM). Foram utilizados os testes de correlação de Spearman, teste de Mann-Whitney e teste de Kruskal-Wallis. RESULTADOS: A autoavaliação vocal no momento atual variou de razoável a boa. A média do escore total na ESV foi de 23,04, acima da nota de corte. O QSHV apresentou valor médio de 23,54 pontos, próximo à nota de corte. O Índice de Desvantagem para o Canto Moderno (IDCM) mostrou média de 25,66 pontos. Houve correlação positiva de força substancial entre os escores totais da ESV e IDCM (0,789). Mulheres apresentaram maiores escores no ESV total e ESV limitação, além de maior escore no IDCM desvantagem. Profissionais do nível I - elite vocal (cantores e atores) apresentaram escores significativamente maiores para o QSHV que os profissionais do grupo IV (usuário não profissional não-vocal) e os do nível V (pessoas que estão fora do mercado de trabalho). A maioria dos respondentes não consultou Otorrinolaringologista (89,29%) no último ano e nem realizou fonoterapia (83,04%) por queixas vocais. CONCLUSÃO: Líderes do Candomblé apresentaram percepção de sintomas vocais e desvantagem vocal no canto, mais evidente nas mulheres, não havendo relação com o conhecimento de saúde e higiene vocal. Apesar da identificação de sintomas vocais, a maior parte dos sujeitos relatou não ter acessado profissionais de saúde responsáveis por esses cuidados com a voz no último ano.

Voice quality after surgery or radiotherapy for glottic T1 squamous cell carcinoma: Results of the VOQUAL study.

PURPOSE: Many series have compared voice quality after radiotherapy or surgery for cT1 glottic carcinoma. Different meta-analyses identify better results for radiotherapy while others do not identify any difference, some finally find a superiority of surgery. The purpose of this study was to compare the voice quality in the long term of patients who underwent transoral surgery versus exclusive irradiation for the treatment of cT1 glottic carcinoma. MATERIAL AND METHODS: The VOQUAL study was a pilot comparative multicenter cross-sectional study. The primary endpoint was the Voice Handicap Index comparison between two groups (radiotherapy or surgery). The voice assessment also consisted in the heteroevaluation of voice quality by the Grade, Roughness, Breathness, Asthenia, and Strain rating scale reported by Hirano. RESULTS: The study included 41 adult patients with cT1 carcinoma of the vocal cord treated by cordectomy or exclusive radiation in two oncologic centers. The median Voice Handicap Index value was 20 [8; 32.5] in the surgery group and 10 [4; 18.5] in the radiotherapy group. There was no statistically significant difference between the median values and the various components F, P and E of the questionnaire (P=0.1585). The median value of the numeric dysphonia Grade, Roughness, Breathness, Asthenia, and Strain scale was 2 [0; 5] in the surgery group and 2 [0.25; 3.75] in the radiotherapy group. There was no statistically significant difference between these values (P=0.78). CONCLUSION: Our study did not show any significant difference on the primary endpoints of Voice Handicap Index and Grade, Roughness, Breathness, Asthenia, and Strain scores. LEVEL OF EVIDENCE: III. CLINICAL TRIAL REGISTRATION: The VOQUAL study was registered on the ClinicalTrials.gov platform under the number NCT04447456, in July 2020.

Voz, monotonia e autonomia no ambiente de trabalho de professores / Voice, monotony, and autonomy in teachers' work setting / Voz, monotonía y autonomía en el entorno laboral docente

Introdução: a relação entre voz e trabalho é objeto de estudo constante. Ainda não há investigação sobre a relação de monotonia e autonomia com queixas vocais. Objetivo: investigar a relação entre a monotonia e a autonomia no ambiente de trabalho com o surgimento de queixas vocais entre professores. Método: estudo exploratório, qualitativo e descritivo, realizado a partir de grupo focal considerando o ineditismo da temática do estudo. Dez professores triados em estudo anterior com suspeita de distúrbio de voz pelo Índice de Triagem de Distúrbio de Voz, que indicaram percepção de monotonia e falta de autonomia no ambiente de trabalho por meio do instrumento Condições de Produção Vocal de Professores foram convidados a participar. Sete professores aceitaram e foram conduzidos dois grupos focais. Perguntas disparadoras sobre monotonia e autonomia no ambiente de trabalho foram feitas. Após análise de conteúdo, foram criadas quatro categorias principais e subcategorias de análise. Resultados: os participantes debateram questões relacionadas à quebra de expectativas sobre o trabalho, frustrações, rotina e desafios diários. Considerações sobre a voz estavam relacionadas ao uso repetitivo e por longos períodos e ambiente com acústica desfavorável. Queixas como rouquidão e baixa projeção vocal foram citadas. Conclusão: monotonia no ambiente de trabalho foi percebida como algo repetitivo e as relações com o surgimento de queixas vocais podem estar relacionadas a situações de uso da voz de forma intensa e constante. A falta de autonomia parece ocasionar a monotonia e, consequentemente, desmotivação, frustração com a carreira e adoecimento, dentre eles, o distúrbio de voz. (AU)

Introduction: the relationship between voice and work is the subject of constant study. There is still no investigation into the relationship between monotony and autonomy and vocal complaints. Objective:to investigate the relationship between monotony and autonomy in the workplace with the emergence of vocal complaints among teachers. Method: exploratory, qualitative and descriptive study, carried out through a focus group considering the novelty of the study theme. Ten teachers screened in a previous study with suspected voice disorders using the Voice Disorder Screening Index, who indicated a perception of monotony and lack of autonomy in the work environment using the Teacher Vocal Production Conditions instrument were invited to participate. Seven teachers accepted and two focus groups were conducted. Triggering questions about monotony and autonomy in the workplace were asked. After content analysis, four main categories and subcategories of analysis were created. Results: participants discussed issues related to broken expectations about work, frustrations, routine and daily challenges. Considerations about the voice were related to repetitive use for long periods and an environment with unfavorable acoustics. Complaints such as hoarseness and low vocal projection were cited. Conclusion: monotony in the work environment was perceived as something repetitive and the relationship with the emergence of vocal complaints may be related to situations of intense and constant use of the voice. The lack of autonomy seems to cause monotony and, consequently, demotivation, frustration with one's career and illness, including voice disorders. (AU)

Introducción: la relación entre voz y trabajo es objeto de constante estudio. Todavía no se ha investigado la relación entre monotonía, autonomía y quejas vocales. Objetivo: investigar la relación entre monotonía y autonomía en el lugar de trabajo con la aparición de quejas vocales entre docentes. Método: estudio exploratorio, cualitativo y descriptivo, realizado a través de un grupo focal considerando la novedad del tema de estudio. Se invitó a participar a diez docentes evaluados en un estudio previo con sospecha de trastornos de la voz mediante el Voice Disorder Screening Index, que indicaron una percepción de monotonía y falta de autonomía en el ambiente de trabajo utilizando el instrumento Teacher Vocal Production Conditions. Siete profesores aceptaron y se realizaron dos grupos focales. Se formularon preguntas desencadenantes sobre la monotonía y la autonomía en el lugar de trabajo. Luego del análisis de contenido, se crearon cuatro categorías y subcategorías principales de análisis. Resultados:los participantes discutieron cuestiones relacionadas con expectativas rotas sobre el trabajo, frustraciones, rutina y desafíos diarios. Las consideraciones sobre la voz estuvieron relacionadas con el uso repetitivo por períodos prolongados y un ambiente con acústica desfavorable. Se citaron quejas como ronquera y baja proyección vocal. Conclusión: la monotonía en el ambiente laboral fue percibida como algo repetitivo y la relación con la aparición de quejas vocales puede estar relacionada con situaciones de uso intenso y constante de la voz. La falta de autonomía parece provocar monotonía y, en consecuencia, desmotivación, frustración con la propia carrera y enfermedades, incluidos trastornos de la voz. (AU)

Estudantes de fonoaudiologia: autoavaliação da voz, sintomas vocais e diagrama de desvio fonatório / Speech pathologist students: voice self-assessment, vocal symptoms and phonatory deviation diagram / Estudiantes de fonoaudiología: autoevaluación de la voz, síntomas vocales y diagrama de desviación fonatoria

Introdução: considera-se importante que fonoaudiólogos apresentem suas vozes como modelo ao realizar uma intervenção fonoaudiológica. Objetivo: conhecer a autoavaliação da voz e sintomas vocais de um grupo de acadêmicos de fonoaudiologia relacionando os achados ao diagrama de desvio fonatório. Método: estudo do tipo analítico, observacional, com 88 estudantes de Fonoaudiologia de uma mesma faculdade, 82 mulheres e seis homens, média de idade de 21,9 anos, sem diagnóstico de disfonia, autorreferidos saudáveis. Foram registrados e comparados dados relativos à autoavaliação da voz e de sintomas vocais, utilizando-se a Escala de Sintomas Vocais. Numa segunda etapa os estudantes foram convidados a realizar uma análise acústica de suas vozes e os que aceitaram (63,6%) procederam com a coleta das amostras de voz, programa VoxMetria® ­ CTS. Para tratamento dos dados foram utilizados Teste T ­ student e Matriz de Correlações construída com os resultados do Teste T- student (nível de confiança de 95%, alpha 5%). Resultados: a Escala de Sintomas Vocais revelou 44,31% dos participantes com escores brutos igual ou superior a 16 pontos, indicando risco vocal, com maior comprometimento do domínio físico. Alunos do último ano obtiveram escores mais elevados, com predomínio de secreção e pigarro na garganta. Houve correlação positiva entre fumar (7,95%) e aumento da nota final. A análise acústica revelou 40% das vozes com diagrama de desvio fonatório fora do quadrante de vozes normais, irregularidade da voz, jitter e shimmer alterados. Conclusão: a combinação dos dois instrumentos utilizados para conhecimento de risco de disfonia em estudantes de Fonoaudiologia mostra-se relevante e reforça a importância de programas de prevenção de saúde vocal também em futuros fonoaudiólogos. (AU)

Introduction: speech therapists must present their voices as a model for a speech therapy intervention. Objective: to understand the voice self-assessment and vocal symptoms of a group of speech therapy students, relating the findings to the phonatory deviation diagram. Method: an analytical observational study was conducted with 88 speech therapy students from the same college, consisting of 82 women and 6 men, averaging 21.9 years old, who reported no diagnosis of dysphonia, and self-reported as healthy. Data relating to voice self-assessment and vocal symptoms were recorded and compared, using the Vocal Symptoms Scale (VoiSS). In the second stage, students were invited to perform an acoustic analysis of their voices and those who accepted (63.6%) proceeded with the collection of voice samples, using the VoxMetria® ­ CTS program. To process the data, the T-student Test and Correlation Matrix constructed with the results of the T-student Test (confidence level of 95%, alpha 5%) were used. Results: The Vocal Symptoms Scale (student T-test) revealed 44.31% of participants with raw scores equal to or greater than 16 points, indicating vocal risk and greater impairment of the physical domain. Final year students obtained higher scores, with a predominance of secretion and throat clearing. There was a positive correlation between smoking (7.95%) and an increase in the final grade. The acoustic analysis revealed 40% of the voices with a phonatory deviation diagram outside the quadrant of normal voices, voice irregularity, altered jitter, and shimmer. Conclusion: The combination of the two instruments used to understand the risk of dysphonia in speech therapy students is relevant and reinforces the importance of vocal health prevention programs for future speech therapists. (AU)

Introducción: los fonoaudiologos deben presentar su voz como modelo para realizar una intervención logopédica. Objetivo: comprender la autoevaluación vocal y los síntomas vocales de un grupo de estudiantes de fonoaudiología, relacionando los hallazgos con el diagrama de desviación fonatoria. Método: se realizó un estudio observacional analítico, observacional, con 88 estudiantes de fonoaudiología de la misma facultad, conformados por 82 mujeres y 6 hombres, com edad promedio de 21,9 años, quienes no refirieron diagnóstico de disfonia y se autorefiriron como sanos. Los datos relacionados con la autoevaluación de la voz y los síntomas vocales se registraron y compararon mediante la Escala de Síntomas Vocales. En la segunda etapa, los estudiantes fueron invitados a realizar un análisis acústico de sus voces y los que aceptaron (63,6%) procedieron a la recolección de muestras de voz, utilizando el programa VoxMetria® ­ CTS. Para procesar los datos se utilizó la Prueba T de Student y la Matriz de Correlación, construida con los resultados de la Prueba T de Student (nivel de confianza del 95%, alfa 5%). Resultados: La Escala de Síntomas Vocales (prueba T de Student) reveló puntuaciones brutas iguales o superiores a 16 puntos (44,31%), lo que indica riesgo vocal y mayor afectación del dominio físico. Los estudiantes de último año obtuvieron puntuaciones más altas, con predominio de secreción y carraspeo. Hubo correlación positiva entre fumar (7,95%) y aumento en la nota final. El análisis acústico reveló voces presentando diagrama de desviación fonatoria fuera del cuadrante de normaliadad (40%), irregularidad de la voz, jitter y shimmer alterados. Conclusión: La combinación de los dos instrumentos utilizados para comprender el riesgo de disfonía en estudiantes de fonoaudiologia es relevante y refuerza la importancia de los programas de prevención de la salud vocal para futuros fonoaudiologos. (AU)

A Prospective Comparative Analysis to Study the Impact on Voice Changes Following Endoscopic Thyroidectomy.

BACKGROUND: Endoscopic approach has come up as a safe and feasible procedure for thyroidectomy with better cosmetic outcomes. However, concerns over its safety in terms of nerve injury and postoperative voice changes remain. This prospective study evaluated the role of vocal cord function assessment using laryngeal examination and voice analysis in patients who underwent endoscopic hemithyroidectomy either by the trans-oral endoscopic thyroidectomy vestibular approach (TOETVA) or the bilateral axillobreast approach (BABA). METHODS: Thirty-nine consecutive patients were randomly allocated to either of the 2 groups of endoscopic hemithyroidectomy; 19 in TOETVA and 20 in the BABA groups. Vocal cord function was assessed subjectively using the GRBAS scale and objectively by acoustic analysis of parameters such as jitter, shimmer, mean frequency (F 0 ), noise-to-harmonic ratio (NHR), and maximum phonatory time (MPT) at baseline, postoperative day 10, and 3 months after surgery. RESULTS: There were no significant differences in mean GRBAS scores and values of mean frequency, jitter and shimmer between the 2 groups and on postoperative day 10 and at 3 months compared with baseline. The mean NHR and MPT showed no differences between the 2 procedures. However, there was a significant decrease in their values on day 10 postsurgery, compared with baseline. These values returned to their baseline at 3 months. The other operative parameters were comparable between the 2 groups, except for the shorter mean operative time in the TOETVA group. CONCLUSIONS: Perioperative quantitative voice parameters were comparable with no statistically significant difference between the 2 techniques of endoscopic thyroidectomy.

The Impact of Vocal Tremor on Deglutition: A Pilot Study.

OBJECTIVE: Vocal tremor (VT) poses treatment challenges due to uncertain pathophysiology. VT is typically classified into two phenotypes: isolated vocal tremor (iVT) and essential tremor-related voice tremor (ETvt). The impact of phenotypes on upper aerodigestive tract physiology during swallowing remains unclear. Qualitative and quantitative measures were employed to characterize tremor phenotypes and investigate the effects on swallowing physiology. METHODS: Eleven ETvt participants (1 Male, 10 Female; x̄ age = 74) and 8 iVT participants (1 Male, 7 Female; x̄ age = 71) swallowed 20 mL boluses in cued and uncued conditions under standardized fluoroscopic visualization. Sustained/a/productions were captured to assess the rate and extent of fundamental frequency (F0) modulation. Penetration and Aspiration Scale (PAS) scores were obtained and swallowing biomechanics were captured using Swallowtail™ software. Participants also completed the Swallowing Quality of Life (SWAL-QOL) questionnaire. RESULTS: Hypopharyngeal transit was faster in both VT phenotypes compared with Swallowtail™ normative reference data. Total pharyngeal transit times, however, were only faster in patients with iVT, relative to reference data. No significant differences were observed on the SWAL-QOL or PAS between tremor phenotypes. SWAL-QOL scores revealed that these patients rarely reported dysphagia symptoms. CONCLUSIONS: Subtle differences in swallowing patterns were observed across VT phenotypes, possibly related to adaptive mechanisms resulting in quicker pharyngeal bolus transit. Most patients did not report swallowing issues or dysphagia symptoms. This study is foundational for larger studies on this challenging population. LEVEL OF EVIDENCE: 4 Laryngoscope, 134:4599-4603, 2024.

Voice Disorder Prevalence and Vocal Health Characteristics in Adolescents.

Importance: Voice disorders impede communication and detract from quality of life, yet little is known about how voice problems present in adolescents. This study characterized the prevalence of voice problems and vocal health characteristics of adolescents throughout the US. Objective: To determine the prevalence of adolescent voice problems in the US as well as the symptoms, voice use patterns, and risk factors associated with these problems. Design, Setting, and Participants: This prospectively performed, cross-sectional survey study conducted from March to June 2023 included a probability sample of adolescents (aged 13-17 years) who were located across the US. Main Outcome and Measures: Adolescents were surveyed concerning voice use, voice symptoms, demographic information, and substance use patterns. The Vocal Fatigue Index (VFI) was also completed. Fisher exact tests, χ2 tests, and logistic regression were used to compare those with and without reported voice problems. Results: Five-hundred and two adolescents participated (51.6% participation rate), including 248 female (49.4%), 7 nonbinary (1.3%), 254 male (50.6%), 4 transfemale (0.7%), and 3 transmale individuals (0.5%) (mean [SD] age, 15.2 [1.3] years). The lifetime prevalence of voice problems was 24.3%, and current prevalence was 7.4%. Voice-related diagnoses included dysphonia associated with acute illness, vocal hyperfunction, benign lesions, and muscle tension. The mean (SD) VFI score was 4.7 (8.09) for part 1, 1.6 (3.2) for part 2, and 2.1 (3.2) for part 3. Adolescents with voice complaints presented with significantly higher VFI scores than those without voice problems (Cohen d for part 1 = 0.78, part 2 = 0.59, and part 3 = 0.79). Voice problems interfered with daily tasks, prevented participation in extracurricular activities, limited the ability to sing, and were associated with school absences. Voice use patterns associated with voice problems included frequent loud voice use, coughing, and/or throat clearing. Risk factors for increased voice problem prevalence included part-time employment in childcare (odds ratio [OR], 6.4; 95% CI, 1.6-26.3), singing (OR, 2.08; 95% CI, 1.3-3.1), performance-related extracurricular activities (ie, musical theater [OR, 2.67; 95% CI, 1.1-6.6 ], karaoke [OR, 3.08; 95% CI, 1.3-6.9]), vaping (OR, 1.99; 95% CI, 1.1-3.5), and/or secondhand smoke exposure (OR, 1.83; 95% CI, 1.2-2.7). Adolescents identifying as transgender were more than 4 times (OR, 4.44; 95% CI, 0.63-31.2) as likely to report voice problems compared with cisgender adolescents. Conclusions: The results of this survey study illuminate the nature of voice problems in adolescents and may guide clinicians in preventing and treating voice disorders in this population. Future work may define the mechanisms through which these factors are associated with the risk for voice disorders in adolescents and determine whether observed relationships are causal or associative.

Validity and Reliability of the German Vocal Fatigue Index in Adults With Voice Disorders.

PURPOSE: Vocal fatigue-related symptoms, frequent in patients with voice disorders, are reliably quantifiable with the Vocal Fatigue Index (VFI) in several languages. The main aim of this work was to investigate the content and construct validity of the German Vocal Fatigue Index (VFI-D) by comparison with the German Voice Handicap Index 9 international (VHI9i) and the Vocal Tract Discomfort Scale (VTD). Moreover, the scale and retest reliability were investigated. METHOD: In a prospective cohort study at two tertiary care hospitals, 93 adults with all types of voice complaints filled out the VFI-D, the VHI-9i, and the VTD. Eighty-one adults (Mage = 53.5 years, SD = 15.7) completed them one time, and additional 12 patients (Mage = 53.8 years, SD = 15.6) did a test-retest, completed them twice at an interval of 1 week. The validity was assessed by Spearman's rho and Mokken scaling and the reliability by a factor analysis and a two-tailed t test. RESULTS: Mokken scaling has proven the VFI-D as one-dimensional questionnaire (one cluster, r = .95). All VFI-D items could be assigned to one of three factors according to principal component and principal axis factor analysis. Although Factor 1 related best to the VHI9i (∅ rs = .76) and Factor 2 to the VTD (∅ rs = .74), Factor 3 correlated moderately with the VHI9i (rs = .34) and weakly with the VTD (rs = .25). Results from the first and second VFI-D completion agreed strongly (t = -1.78, p = .10). CONCLUSIONS: In this study, the content and construct validity of the VFI-D were confirmed. Also, both scale reliability with identical factors as those in the original study and retest reliability were verified. The VHI9i and VTD were highly indicative of VFI-D Factors 1 and 2, respectively. No correlation between Factor 3 and the other questionnaires was determined. Future research should evaluate which characteristics are specific to vocal fatigue versus general voice disorder-related symptoms.

Screening of voice and vocal tract changes in professional wind instrument players.

PURPOSE: Playing wind instruments is a strenuous task on the larynx, predisposing players to voice disorders. This study aims to evaluate potential vocal symptoms and vocal tract alterations in professional wind instrumentalists. METHODS: In this cross-sectional study, 26 male military subjects were interviewed, completed the voice handicap index (VHI) -10 questionnaire, and subjected to auditory-perceptual assessment, neck examination, rigid laryngostroboscopy and flexible nasofiberoscopy both before and during instrument playing. RESULTS: All participants had vocal fatigue symptoms, around one-quarter complained of voice change, one-quarter complained of shortness of breath while or after performing, and one-third complained of neck symptoms. The average score of VHI-10 was 16.2 ± 6.5, and approximately three-quarters of participants scored above the cut-off point. There were no significant correlations between age, years of instrument playing, average hours of daily practice, and VHI-10. Participants with neck symptoms had significantly higher VHI-10 scores. Those (around one-fifth) with an external neck swelling during Valsalva maneuver had a significantly higher VHI-10 score. Dysphonia, mainly mild and of strained, leaky quality, was detected in almost one-third of participants. While the instrument was being played, the vocal folds were somewhat adducted, and the vocal tract became more compressed as the task became more demanding. The most frequent observations in the vocal tract examination were hyperemia of the vocal folds or all over the laryngeal and pharyngeal mucosa, excessive secretions over the vocal folds, signs of hyperadduction, arytenoid edema, and phonatory waste. CONCLUSION: Wind instrumentalists frequently experience voice disorders, which necessitate further care and investigation.

Systematic Review: Singing-Based Interventions to Improve Physical Functions Related to Aging Voice in Older Adults.

PURPOSE: This systematic review aimed to evaluate the effects of singing as an intervention for aging voice. METHOD: Quantitative studies of interventions for older adults with any medical condition that involves singing as training were reviewed, measured by respiration, phonation, and posture, which are the physical functions related to the aging voice. English and Chinese studies published until April 2024 were searched using 31 electronic databases, and seven studies were included. The included articles were assessed according to the Grading of Recommendations, Assessment, Development, and Evaluations rubric. RESULTS: Seven studies were included. These studies reported outcome measures that were related to respiratory functions only. For the intervention effect, statistically significant improvements were observed in five of the included studies, among which three studies had large effect sizes. The overall level of evidence of the included studies was not high, with three studies having moderate levels and the rest having lower levels. The intervention activities included trainings other than singing. These non-singing training items may have caused co-intervention bias in the study results. CONCLUSIONS: This systematic review suggests that singing as an intervention for older adults with respiratory and cognitive problems could improve respiration and respiratory-phonatory control. However, none of the included studies covers the other two of the physical functions related to aging voice (phonatory and postural functions). The overall level of evidence of the included studies was not high either. There is a need for more research evidence in singing-based intervention specifically for patient with aging voice.

Consistency of the Signature of Phonotraumatic Vocal Hyperfunction Across Different Ambulatory Voice Measures.

PURPOSE: Although different factors and voice measures have been associated with phonotraumatic vocal hyperfunction (PVH), it is unclear what percentage of individuals with PVH exhibit such differences during their daily lives. This study used a machine learning approach to quantify the consistency with which PVH manifests according to ambulatory voice measures. Analyses included acoustic parameters of phonation as well as temporal aspects of phonation and rest, with the goal of determining optimally consistent signatures of PVH. METHOD: Ambulatory neck-surface acceleration signals were recorded over 1 week from 116 female participants diagnosed with PVH and age-, sex-, and occupation-matched vocally healthy controls. The consistency of the manifestation of PVH was defined as the percentage of participants in each group that exhibited an atypical signature based on a target voice measure. Evaluation of each machine learning model used nested 10-fold cross-validation to improve the generalizability of findings. In Experiment 1, we trained separate logistic regression models based on the distributional characteristics of 14 voice measures and durations of voicing and resting segments. In Experiments 2 and 3, features of voicing and resting duration augmented the existing distributional characteristics to examine whether more consistent signatures would result. RESULTS: Experiment 1 showed that the difference in the magnitude of the first two harmonics (H1-H2) exhibited the most consistent signature (69.4% of participants with PVH and 20.4% of controls had an atypical H1-H2 signature), followed by spectral tilt over eight harmonics (73.6% participants with PVH and 32.1% of controls had an atypical spectral tilt signature) and estimated sound pressure level (SPL; 66.9% participants with PVH and 27.6% of controls had an atypical SPL signature). Additionally, 77.6% of participants with PVH had atypical resting duration, with 68.9% exhibiting atypical voicing duration. Experiments 2 and 3 showed that augmenting the best-performing voice measures with univariate features of voicing or resting durations yielded only incremental improvement in the classifier's performance. CONCLUSIONS: Females with PVH were more likely to use more abrupt vocal fold closure (lower H1-H2), phonate louder (higher SPL), and take shorter vocal rests. They were also less likely to use higher fundamental frequency during their daily activities. The difference in the voicing duration signature between participants with PVH and controls had a large effect size, providing strong empirical evidence regarding the role of voice use in the development of PVH.

Vocal risk mapping in classical singers: an analysis of the self-perception of voice quality, vocal fatigue, and singing voice handicap. / Mapeamento do risco vocal em cantores eruditos: análise da autopercepção da qualidade da voz, fadiga vocal e desvantagem no canto.

PURPOSE: To map the vocal risk in professional classical singers, analyzing their self-assessment of voice and self-perception of singing voice handicap and vocal fatigue. METHODS: The study sample comprised of 52 professional classical choir singers, aged 31 to 72 years. They answered an online questionnaire in Google Forms, addressing their characterization, self-assessment of voice, the Voice Handicap Index-10 (VHI-10), Classical Singing Handicap Index (CSHI), and Vocal Fatigue Index (VFI). RESULTS: The mean self-assessment of voice was between "Good" and "Very good" (1.2). The mean total VHI-10 score was 1.35, which is below the cutoff. The mean total CSHI score was 10.04. The mean total VFI score was 10.83, near the cutoff value. Classical singers who use their voice to give examples to students in their classes had higher scores in VHI-10 (p = 0.013), VFI voice restriction (p = 0.011), and VFI total score (p = 0.015). Besides, classical singers who already visited a Speech-Language Pathologist for voice problems had higher scores in VFI voice restriction (p = 0.040) and VFI recovery with voice rest (p = 0.019), in addition to correlations between instrument scores. CONCLUSION: Professional classical singers did not have voice handicaps. However, their self-perception of vocal fatigue was more present when the singing voice was used, such as giving examples with their own voice in class. Having had voice problems and visited a Speech-Language Pathologist in the past led to a greater perception of vocal recovery with rest.

OBJETIVO: Mapear o risco vocal em cantores eruditos profissionais, analisando sua autoavaliação vocal e autopercepção de desvantagem vocal no canto e fadiga vocal. MÉTODO: Participaram deste estudo 52 cantores eruditos de coros profissionais, entre 31 e 72 anos, que preencheram online (Formulários Google) um questionário de caracterização, autoavaliação vocal, bem como os instrumentos Índice de Desvantagem Vocal 10 - IDV-10, Índice de Desvantagem para o Canto Clássico - IDCC e Índice de Fadiga Vocal - IFV. RESULTADOS: A média da autoavaliação vocal ficou entre "Boa" e "Muito boa" (1,2). A média do escore total do IDV-10 foi 1,35, abaixo da nota de corte. A média do escore total do IDCC foi 10,04. A média do escore total do IFV foi de 10,83, próxima da nota de corte. Cantores eruditos que, em suas aulas, dão exemplos aos alunos com a própria voz apresentam maiores escores nos instrumentos IDV-10 (p=0,013), IFV restrição vocal (p=0,011) e IFV escore total (p=0,015). Cantores eruditos que já procuraram fonoaudiólogo devido a problemas de voz apresentam maiores escores no IFV fator restrição vocal (p=0,040) e no IFV fator recuperação com repouso vocal (p=0,019), além de terem correlações entre os escores dos instrumentos. CONCLUSÃO: Cantores eruditos profissionais não apresentam desvantagem vocal. Porém, questões relacionadas à autopercepção de fadiga vocal se mostram mais presentes quando relacionadas às atividades de uso da voz cantada, como dar exemplos em aulas com a própria voz. Ter tido problema vocal e procurado fonoaudiólogo no passado proporciona maior percepção de recuperação vocal com repouso.

Voice Disorder Prevalence and Vocal Health Characteristics in Children.

Importance: Voice disorders impede communication and limit quality of life for many children. However, research demonstrating the prevalence of pediatric voice problems and associated voice use patterns is scarce. This investigation examined the prevalence of voice problems and vocal health characteristics of school-aged children. Objective: To examine the prevalence of voice problems in school-aged children throughout the US with reference to lifestyle, demographic characteristics, and voice use patterns. Design, Setting, and Participants: This study used a cross-sectional design to survey a probability sample of caregivers of children aged 4 to 12 years living throughout the US in 2023. Main Outcomes and Measures: Caregivers were surveyed regarding their children's voice use, voice symptoms, voice problems, extracurricular activities, and demographic information. Caregivers also competed the Pediatric Voice-Related Quality of Life questionnaire. The Fisher exact test, χ2 tests, and logistic regression were used to compare children with and without voice problems. Results: Overall, 6293 panelists were invited to complete screening questions for the survey, and 1789 individuals were screened for eligibility between March and April 2023. Of these, 1175 parents (65.7%) completed the survey. Twenty-one (1.8%) were excluded for a combination of either high refusal rates (n = 16), speeding (n = 2), or straight lining (n = 12). The final number of participants included in analysis was 1154 caregivers of children aged 4 to 12 years (559 female children [48.4%]; 595 male children [51.6%]; mean [SD] age, 8.02 [2.49] years). The prevalence of voice problems in children was 6.7% (n = 78), and the lifetime prevalence was 12% (n = 138). Benign vocal fold lesions was the most common diagnosis underlying voice complaints, and other causes included respiratory illness, allergies, autism-related voice issues, and other neurological conditions. Risk factors for pediatric voice problems included being male (odds ratio [OR], 1.47; 95% CI, 1.0-2.1), having more than 4 individuals living in the household (OR, 2.30; 95% CI, 1.2-4.4), poor speech intelligibility (OR, 2.26; 95% CI, 1.2-4.3), maternal history of voice problems (OR, 4.54; 95% CI, 1.2-16.4), participating in online gaming (OR, 1.56; 95% CI, 1.0-2.3), and secondhand smoke exposure (OR, 1.7; 95% CI, 1.1-2.6). Voice use-related risk factors included frequent talking, coughing, throat clearing, tantrums/crying, and vocal strain. Voice problems were associated with substantially detracted quality of life as measured by the Pediatric Voice-Related Quality of Life questionnaire, limited social/extracurricular interactions, increased school absences, and negative attention from adults. Conclusions: The results of this survey study suggest that pediatric voice problems are relatively common and detract from quality of life. Specific environmental and behaviorial factors are associated with increased risk for voice disorders.

Seven Days of Voice Rest Post-phonosurgery Is Not Better than 3 days: A Prospective Randomized Short-term Outcome Study.

OBJECTIVE: The aim of the study is to compare the short-term effect of 7 versus 3 days of voice rest (VR) on objective vocal (acoustic) parameters following phonosurgery. METHODS: A prospective randomized study conducted at a tertiary referral medical center. Patients with vocal fold nodules, polyps, or cysts and scheduled for phonosurgery were recruited from the Voice Clinic. They were randomized into groups of 7- or 3-day postoperative VR periods and their voices were recorded preoperatively and at 4-week postoperatively. A mixed linear model statistical analysis (MLMSA) was used to compare pre- and postoperative jitter, shimmer, harmonic-to-noise ratio, and maximum phonation time between the two groups. RESULTS: Sixty-five patients were recruited, but only 34 fully complied with the study protocol, and their data were included in the final analysis (19 males, 20 females; mean age: 40.6 years; 17 patients in the 7-day VR group and 16 in the 3-day VR group). The groups were comparable in age, sex, and type of vocal lesion distribution. The preoperative MLMSA showed no significant group differences in the tested vocal parameters. Both groups exhibited significant (p < 0.05) and comparable improvement in all vocal parameters at postoperative week 4. CONCLUSIONS: A VR duration of 7 days showed no greater benefit on the examined vocal parameters than the 3-day protocol 4-week postoperatively. Our results suggest that a 3-day VR regimen can be followed by patients who undergo phonosurgery without compromising the vocal results. Larger-scale and longer-duration studies are needed to confirm our findings. LEVEL OF EVIDENCE: 2 Laryngoscope, 134:4661-4666, 2024.

AI Detection of Glottic Neoplasm Using Voice Signals, Demographics, and Structured Medical Records.

OBJECTIVE: This study investigated whether artificial intelligence (AI) models combining voice signals, demographics, and structured medical records can detect glottic neoplasm from benign voice disorders. METHODS: We used a primary dataset containing 2-3 s of vowel "ah", demographics, and 26 items of structured medical records (e.g., symptoms, comorbidity, smoking and alcohol consumption, vocal demand) from 60 patients with pathology-proved glottic neoplasm (i.e., squamous cell carcinoma, carcinoma in situ, and dysplasia) and 1940 patients with benign voice disorders. The validation dataset comprised data from 23 patients with glottic neoplasm and 1331 patients with benign disorders. The AI model combined convolutional neural networks, gated recurrent units, and attention layers. We used 10-fold cross-validation (training-validation-testing: 8-1-1) and preserved the percentage between neoplasm and benign disorders in each fold. RESULTS: Results from the AI model using voice signals reached an area under the ROC curve (AUC) value of 0.631, and additional demographics increased this to 0.807. The highest AUC of 0.878 was achieved when combining voice, demographics, and medical records (sensitivity: 0.783, specificity: 0.816, accuracy: 0.815). External validation yielded an AUC value of 0.785 (voice plus demographics; sensitivity: 0.739, specificity: 0.745, accuracy: 0.745). Subanalysis showed that AI had higher sensitivity but lower specificity than human assessment (p < 0.01). The accuracy of AI detection with additional medical records was comparable with human assessment (82% vs. 83%, p = 0.78). CONCLUSIONS: Voice signal alone was insufficient for AI differentiation between glottic neoplasm and benign voice disorders, but additional demographics and medical records notably improved AI performance and approximated the prediction accuracy of humans. LEVEL OF EVIDENCE: NA Laryngoscope, 134:4585-4592, 2024.

Voice handicap and voice-related quality of life in COVID-19 patients.

OBJECTIVES: Identifying voice handicap and voice-related quality of life in patients presenting pulmonary impairment associated with COVID-19 infection, comparing pulmonary parameters between these patients and individuals in the control group, as well as correlating pulmonary parameters to self-assessment questionnaires (IDV-10 and QVV). METHODS: Thirty-five (35) patients presenting pulmonary impairment with COVID-19 infection were herein selected and compared to 35 individuals who were not affected by COVID-19 infection. Two self-assessment questionnaires were applied (vocal handicap index and voice quality of life protocol). Maximum phonation time Forced Expiratory Pressure (PEF) and Forced Inspiratory Pressure (PIF) were measured and videolaryngoscopy was performed. RESULTS: There was statistically significant difference in scores recorded in voice self-assessment questionnaires (IDV-10 and QVV), Expiratory Pressure (PEF) and Forced Inspiratory Pressure (PIF) between patients with pulmonary impairment associated with COVID-19 infection and those in the control group. Correlation between PEF/PIF and scores recorded in voice self-assessment questionnaires was also observed. CONCLUSION: Pulmonary impairment associated with COVID-19 infection has worsened voice handicap and voice-related quality of life in the assessed patients, as well as reduced their forced expiratory and inspiratory pressure in comparison to the control group.