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Journal of Voice: Official Journal of the Voice Foundation

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https://www.readbyqxmd.com/read/28433346/biomechanical-flow-amplification-arising-from-the-variable-deformation-of-the-subglottic-mucosa
#1
Eric Goodyer, Frank Müller, Markus Hess, Karthikeyan Kandan, Farukh Farukh
OBJECTIVE: This study mapped the variation in tissue elasticity of the subglottic mucosa, applied these data to provide initial models of the likely deformation of the mucosa during the myoelastic cycle, and hypothesized as to the impact on the process of phonation. STUDY DESIGN: Six donor human larynges were dissected along the sagittal plane to expose the vocal folds and subglottic mucosa. A linear skin rheometer was used to apply a controlled shear force, and the resultant displacement was measured...
April 19, 2017: Journal of Voice: Official Journal of the Voice Foundation
https://www.readbyqxmd.com/read/28431831/speaking-and-nonspeaking-voice-professionals-who-has-the-better-voice
#2
Chandala Chitguppi, Anoop Raj, Ravi Meher, P K Rathore
INTRODUCTION: Voice professionals can be classified into two major subgroups: the primarily speaking and the primarily nonspeaking voice professionals. Nonspeaking voice professionals mainly include singers, whereas speaking voice professionals include the rest of the voice professionals. Although both of these groups have high vocal demands, it is currently unknown whether both groups show similar voice changes after their daily voice use. Comparison of these two subgroups of voice professionals has never been done before...
April 18, 2017: Journal of Voice: Official Journal of the Voice Foundation
https://www.readbyqxmd.com/read/28416083/prevalence-and-occupation-of-patients-presenting-with-dysphonia-in-the-united-states
#3
Michael S Benninger, Chantal E Holy, Paul C Bryson, Claudio F Milstein
OBJECTIVE: Voice disorders are common conditions that may have a significant impact on patient quality of life, yet their prevalence and epidemiology are poorly documented. In this study, we estimated the prevalence, demographics, and occupation of patients with dysphonia. METHODS: Using the Commercial and Medicare MarketScan databases of 146.7 million lives (2008-2012), the prevalence of dysphonia was estimated. Patient demographics and industry occupation were evaluated...
April 13, 2017: Journal of Voice: Official Journal of the Voice Foundation
https://www.readbyqxmd.com/read/28410773/brain-activity-during-phonation-in-women-with-muscle-tension-dysphonia-an-fmri-study
#4
Maryna Kryshtopava, Kristiane Van Lierde, Iris Meerschman, Evelien D'Haeseleer, Pieter Vandemaele, Guy Vingerhoets, Sofie Claeys
OBJECTIVES: The main objectives of this functional magnetic resonance imaging (fMRI) study are (1) to investigate brain activity during phonation in women with muscle tension dysphonia (MTD) in comparison with healthy controls; and (2) to explain the neurophysiological mechanism of laryngeal hyperfunction/tension during phonation in patients with MTD. METHODS: Ten women with MTD and fifteen healthy women participated in this study. The fMRI experiment was carried out using a block design paradigm...
April 11, 2017: Journal of Voice: Official Journal of the Voice Foundation
https://www.readbyqxmd.com/read/28408142/effects-of-early-smoking-habits-on-young-adult-female-voices-in-greece
#5
Dionysios Tafiadis, Eugenia I Toki, Kevin J Miller, Nausica Ziavra
Cigarette use is a preventable cause of mortality and diseases. The World Health Organization states that Europe and especially Greece has the highest occurrence of smoking among adults. The prevalence of smoking among women in Greece was estimated to be over 30% in 2012. Smoking is a risk factor for many diseases. Studies have demonstrated the association between smoking and laryngeal pathologies as well as changes in voice characteristics. The purpose of this study was to estimate the effect of early smoking habit on young adult female voices and if they perceive any vocal changes using two assessment methods...
April 10, 2017: Journal of Voice: Official Journal of the Voice Foundation
https://www.readbyqxmd.com/read/28408141/the-effects-of-heel-height-on-head-position-long-term-average-spectra-and-perceptions-of-female-singers
#6
Amelia A Rollings
Female singers often wear high heels for auditions and performances. Heel height research in non-singing contexts indicates that wearing heels can affect body alignment and head position. Studies in orthodontics, sleep apnea, and voice science suggest that head and neck positioning can alter the vocal tract. The purpose of this study was to assess the effects, if any, of heel height (barefoot, 10.16-cm stilettos) on three angles of singer head position (calculated from C7-tragus-nasion), long-term average spectra data, and perceptual data (questionnaire) acquired from female (N = 30) soloists during alternating periods of silence and singing...
April 10, 2017: Journal of Voice: Official Journal of the Voice Foundation
https://www.readbyqxmd.com/read/28396221/efficacy-of-voice-therapy-for-patients-with-early-unilateral-adductor-vocal-fold-paralysis
#7
Ya-Chuan Kao, Shen-Hwa Chen, Yu-Tsai Wang, Pen-Yuan Chu, Ching-Ting Tan, Wan-Zu Diana Chang
OBJECTIVES: Although a variety of therapeutic techniques have been suggested for patients with unilateral adductor vocal fold paralysis (UAVFP), they were not aimed specifically at determining the efficacy of early intervention for these patients. The purposes of this study are to explore a protocol of voice therapy and to investigate its efficacy in voice therapy for patients with early UAVFP. A 12-week planned voice therapy protocol, including vocal function exercise, hard attack, and resonance voice therapy, was given to 10 patients within 6 months of initial diagnosis...
April 7, 2017: Journal of Voice: Official Journal of the Voice Foundation
https://www.readbyqxmd.com/read/28396220/does-even-low-grade-dysphonia-warrant-voice-center-referral
#8
Resha S Soni, Barbara Ebersole, Nausheen Jamal
OBJECTIVE: Data regarding the referral of dysphonic patients to specialty voice clinics are limited. The objective of this study is to examine the relationship between low perceptual dysphonia severity and subtle laryngeal findings to discern if this can help guide referral. STUDY DESIGN: This is a retrospective chart review. METHODS: The charts of 94 patients presenting with a primary complaint of hoarseness to a single laryngologist over a 1-year period at a tertiary care, interdisciplinary voice center were analyzed...
April 7, 2017: Journal of Voice: Official Journal of the Voice Foundation
https://www.readbyqxmd.com/read/28392086/correlation-of-iranian-voice-quality-of-life-profile-ivqlp-to-vhi-30-and-vrqol-construct-validity-evidence
#9
Ali Dehqan, Ronald C Scherer, Fariba Yadegari
OBJECTIVES: An important domain in health-related quality of life evaluations is quality of life perceptions due to having a voice disorder. The purpose of the current study was (1) to examine the correlation of the Iranian Voice Quality of Life Profile (IVQLP) with the Voice-Related Quality of Life (VRQOL) and Voice Handicap Index-30 (VHI-30) for establishing the construct convergent validity of the IVQLP, and (2) to examine the correlation between VRQOL and VHI-30. METHODS: Study sample consisted of 150 patients, 91 male and 59 female, diagnosed with muscle tension dysphonia, benign organic disorders such as polyps and nodules, and unilateral vocal fold paralysis...
April 6, 2017: Journal of Voice: Official Journal of the Voice Foundation
https://www.readbyqxmd.com/read/28392085/voice-handicap-index-and-interpretation-of-the-cutoff-points-using-receiver-operating-characteristic-curve-as-screening-for-young-adult-female-smokers
#10
Dionysios Tafiadis, Evangelia I Kosma, Spyridon K Chronopoulos, Aggelos Papadopoulos, Konstantinos Drosos, Vassiliki Siafaka, Eugenia I Toki, Nausica Ziavra
The relationship between smoking and alterations of the vocal tract and larynx is well known. This pathology leads to the degradation of voice performance in daily living. Multiple assessment methods of vocal tract and larynx have been developed, and in recent years they were enriched with self-reported questionnaires such as Voice Handicap Index (VHI). This study determined the cutoff points of VHI's total score and its three domains for young female smokers in Greece. These estimated cutoff points could be used by voice specialists as an indicator for further clinical evaluation (foreseeing a potential risk of developing a vocal symptom because of smoking habits)...
April 6, 2017: Journal of Voice: Official Journal of the Voice Foundation
https://www.readbyqxmd.com/read/28372888/anterior-glottic-web-formation-for-voice-feminization-experience-of-27-patients
#11
Taner Yılmaz, Oğuz Kuşçu, Tevfik Sözen, Ahmet Emre Süslü
OBJECTIVE: Voice feminization is needed for male-to-female transsexuals, males with testicular feminization, and females with constitutional androphonia. Anterior glottic web formation affords advantages: endoscopic surgery without skin incision and scar, outpatient surgery, potential reversibility, and low risk for vocal fold and airway damage. STUDY DESIGN: This is a nonrandomized prospective cohort study. SETTING: University hospital. MATERIALS AND METHODS: All 27 cases of androphonia were treated with endoscopic anterior glottic web formation...
March 31, 2017: Journal of Voice: Official Journal of the Voice Foundation
https://www.readbyqxmd.com/read/28366247/whisper-and-phonation-aerodynamic-comparisons-across-adduction-and-loudness
#12
Ramya Konnai, Ronald C Scherer, Amy Peplinski, Kenneth Ryan
INTRODUCTION: Whisper is known to be produced by different speakers differently, especially with respect to glottal configuration that influences glottal aerodynamics. Differences in whisper production and phonation types imply important linguistic information in many languages, are identified in vocal pathologies, are used to communicate mood and emotion, and are used in vocal performance. OBJECTIVE: The present study focused on investigating the aerodynamic differences between whisper and phonation at different loudness and adduction levels...
March 30, 2017: Journal of Voice: Official Journal of the Voice Foundation
https://www.readbyqxmd.com/read/28359643/insights-into-the-role-of-collagen-in-vocal-fold-health-and-disease
#13
REVIEW
Sharon S Tang, Vidisha Mohad, Madhu Gowda, Susan L Thibeault
As one of the key fibrous proteins in the extracellular matrix, collagen plays a significant role in the structural and biomechanical characteristics of the vocal fold. Anchored fibrils of collagen create secure structural regions within the vocal folds and are strong enough to sustain vibratory impact and stretch during phonation. This contributes tensile strength, density, and organization to the vocal folds and influences health and pathogenesis. This review offers a comprehensive summary for a current understanding of collagen within normal vocal fold tissues throughout the life span as well as vocal pathology and wound repair...
March 27, 2017: Journal of Voice: Official Journal of the Voice Foundation
https://www.readbyqxmd.com/read/28359642/effect-of-hormonal-replacement-therapy-on-voice
#14
Abdul-Latif Hamdan, Georges Tabet, Ghina Fakhri, Doja Sarieddine, Rachel Btaiche, Muhieddine Seoud
OBJECTIVE: This study aimed to investigate the effect of hormonal therapy (HRT) on voice in a group of menopausal women, taking into consideration body mass index (BMI) as a confounding factor and its potential role as a substitute for HRT. SUBJECTS AND METHODS: A total of 53 menopausal women, 34 not on HRT and 19 on HRT, were recruited. Demographic variables included age, gender, smoking, and BMI. All subjects were asked about the presence or absence of the following symptoms: hoarseness, deepening of the voice, pitch breaks, throat clearing, dryness in the throat, and vocal fatigue...
March 27, 2017: Journal of Voice: Official Journal of the Voice Foundation
https://www.readbyqxmd.com/read/28347617/sensorimotor-mismapping-in-poor-pitch-singing
#15
Hao He, Wei-Dong Zhang
OBJECTIVE: This study proposes that there are two types of sensorimotor mismapping in poor-pitch singing: erroneous mapping and no mapping. We created operational definitions for the two types of mismapping based on the precision of pitch-matching and predicted that in the two types of mismapping, phonation differs in terms of accuracy and the dependence on the articulation consistency between the target and the intended vocal action. The study aimed to test this hypothesis by examining the reliability and criterion-related validity of the operational definitions...
March 24, 2017: Journal of Voice: Official Journal of the Voice Foundation
https://www.readbyqxmd.com/read/28347616/the-overdrive-mode-in-the-complete-vocal-technique-a-preliminary-study
#16
Johan Sundberg, Maddalena Bitelli, Annika Holmberg, Ville Laaksonen
"Complete Vocal Technique," or CVT, is an internationally widespread method for teaching voice. It classifies voicing into four types, referred to as "vocal modes," one of which is called "Overdrive." The physiological correlates of these types are unclear. This study presents an attempt to analyze its voice source and formant frequency characteristics. A male and a female expert of CVT sang a set of "Overdrive" and falsetto tones on the syllable /pᴂ/. The voice source could be analyzed by inverse filtering in the case of the male subject...
March 24, 2017: Journal of Voice: Official Journal of the Voice Foundation
https://www.readbyqxmd.com/read/28343805/the-reported-incidence-and-nature-of-voice-disorders-in-the-private-healthcare-context-of-gauteng
#17
Kayla Fourie, Maeve Richardson, Jeannie van der Linde, Shabnam Abdoola, Renata Mosca
OBJECTIVES: The study aimed to determine the incidence and nature of voice disorders, as reported by ear, nose, and throat specialists (ENTs), in the Gauteng private healthcare context. STUDY DESIGN: This is a cross-sectional survey design. METHODS: The respondents had to be certified ENTs working in the private healthcare context in Gauteng. The survey was sent out electronically to all 94 ENTs, registered with the ENT Society, working in the private healthcare context; thus, no additional requirements had to be met...
March 23, 2017: Journal of Voice: Official Journal of the Voice Foundation
https://www.readbyqxmd.com/read/28343804/evaluation-of-the-grafted-fascia-in-the-vocal-fold-of-dogs-a-histologic-study
#18
Eduardo G B Carvalho, Henrique F Pauna, Almiro J Machado, Ester M D Nicola, Albina M A M Altemani, Agrício N Crespo
INTRODUCTION: There is no consensus on the ideal graft for medialization surgery of the vocal folds in the literature. One of the most favorable proposals is the use of autologous fascia, which seems limited by the lack of information regarding the integration of grafted tissue. Our study aims to evaluate the degree of fully engrafted fascia integration in the vocal fold lamina propria of dogs. MATERIALS AND METHODS: Fourteen adult mongrel dogs that underwent intravenous general anesthesia were selected and kept under spontaneous ventilation...
March 23, 2017: Journal of Voice: Official Journal of the Voice Foundation
https://www.readbyqxmd.com/read/28342677/prevalence-of-voice-disorders-in-singers-systematic-review-and-meta-analysis
#19
Pedro Melo Pestana, Susana Vaz-Freitas, Maria Conceição Manso
OBJECTIVE: The study aimed to review the prevalence of self-reported voice disorders in singers. STUDY DESIGN: The study is a systematic review and meta-analysis. METHODS: A systematic review of five major scientific databases was conducted. An extensive search strategy was used considering the rules of each database. Original articles were included only if they had data related to self-perception of dysphonia in the past. Furthermore, heterogeneity and its relative significance were assessed...
March 22, 2017: Journal of Voice: Official Journal of the Voice Foundation
https://www.readbyqxmd.com/read/28341120/voice-quality-following-unilateral-vocal-fold-paralysis-a-randomized-comparison-of-therapeutic-modalities
#20
Sunali Vij, Ashok K Gupta, Dharam Vir
In this work, a study on the efficacy of different therapeutic modalities in patients with unilateral vocal fold paralysis (UVFP) was carried out. The study included 20 patients with UVFP, divided into two groups. The objective of this work is to evaluate the voice quality in these patients and to compare the voice following surgery and voice therapy. Group I received voice therapy and group II underwent thyroplasty type I and type IV. The voice was assessed pretreatment and 1 and 3 months posttreatment. Different parameters, such as habitual fundamental frequency (F0), signal-to-noise ratio, jitter, shimmer, maximum phonation duration, s/z ratio, and objective and subjective ratings of dysphonia, were analyzed...
March 21, 2017: Journal of Voice: Official Journal of the Voice Foundation
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