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https://www.readbyqxmd.com/read/28109495/swallowing-function-in-pediatric-patients-with-bilateral-vocal-fold-immobility
#1
Jeffrey Hsu, Kathleen M Tibbetts, Derek Wu, Michel Nassar, Melin Tan
INTRODUCTION: Infants with bilateral vocal fold immobility (BVFI) often have poor swallow function in addition to potential airway compromise. While there are several reports on BVFI and its effect on patients' airway status, little is known about long term swallow function. OBJECTIVES: We aim to characterize the swallowing function over time in pediatric patients with bilateral vocal fold immobility. METHODS: A retrospective review of medical records of infants diagnosed with BVFI at a tertiary care children's hospital between 2005 and 2014 was conducted...
February 2017: International Journal of Pediatric Otorhinolaryngology
https://www.readbyqxmd.com/read/28108153/parameters-from-the-complete-phonatory-range-of-an-excised-rabbit-larynx
#2
Randal D Mills, Keith Dodd, Alex Ablavsky, Erin Devine, Jack J Jiang
OBJECTIVE: This study aims to collect data throughout the complete phonatory range using rabbit larynges. STUDY DESIGN: This is a methodological excised rabbit larynx study. METHODS: Seven rabbit larynges were dissected and mounted on a modified excised laryngeal apparatus. Phonation was initiated at phonation threshold pressure (PTP) and airflow was increased by consistent increments until phonation instability pressure (PIP) was reached...
January 17, 2017: Journal of Voice: Official Journal of the Voice Foundation
https://www.readbyqxmd.com/read/28107611/adaptation-and-validation-of-the-singing-voice-handicap-index-into-polish
#3
Ewelina M Sielska-Badurek, Maria Sobol, Anna Cioch, Ewa Osuch-Wójcikiewicz, Anna M Rzepakowska, Kazimierz Niemczyk
OBJECTIVE: To translate and adapt the original SVHI for the Polish population and to evaluate the psychometric properties of the Polish SVHI version, such as internal consistency, reliability and construct validity in different groups of dysphonic singers. STUDY DESIGN: Prospective case-control study. SETTING: Patients treated at a single institute. PARTICIPANTS: 60 singers with voice disorders and 57 healthy singers completed the Singing Voice Handicap Index (SVHI) and the Voice Handicap Index (VHI)...
January 20, 2017: Clinical Otolaryngology
https://www.readbyqxmd.com/read/28105659/effect-of-intralaryngeal-muscle-synkinesis-on-perception-of-voice-handicap-in-patients-with-unilateral-vocal-fold-paralysis
#4
R Jun Lin, Michael C Munin, Clark A Rosen, Libby J Smith
OBJECTIVES/HYPOTHESIS: Intralaryngeal muscle synkinesis associated with unilateral vocal fold paralysis (UVFP) is thought to preserve thyroarytenoid-lateral cricoarytenoid muscle complex tone, resulting in a better voice despite the presence of vocal fold paralysis (VFP). This study compares voice handicap in patients with unilateral VFP (UVFP) with and without evidence of adductory synkinesis on laryngeal electromyography (LEMG). STUDY DESIGN: Retrospective review of LEMG data and Voice Handicap Index-10 (VHI-10) scores of patients diagnosed with permanent UVFP...
January 20, 2017: Laryngoscope
https://www.readbyqxmd.com/read/28102857/vocal-fold-paralysis-in-preterm-infants-prevalence-and-analysis-of-risk-factors
#5
J Jabbour, M Uhing, T Robey
OBJECTIVE: To calculate the prevalence of vocal fold paralysis (VFP) in preterm (<37 weeks of gestation) infants at a single neonatal intensive care unit (NICU) and identify risk factors for the development of VFP. STUDY DESIGN: This is a case control study of all surviving preterm infants admitted to the NICU at Children's Hospital of Wisconsin from 2006 to 2012, comparing those with and without VFP. Multivariate analysis was performed to identify significant risk factors for VFP...
January 19, 2017: Journal of Perinatology: Official Journal of the California Perinatal Association
https://www.readbyqxmd.com/read/28100072/trial-vocal-fold-injection-predicts-thyroplasty-outcomes-in-nonparalytic-glottic-incompetence
#6
Lukas D Dumberger, Lewis Overton, Robert A Buckmire, Rupali N Shah
OBJECTIVES: Trial vocal fold injection (TVFI) may be used prior to permanent medialization when voice outcome is uncertain. We aimed to determine whether voice outcomes of TVFI are predictive of, or correlate with outcomes after type I Gore-Tex medialization thyroplasty (GMT) in patients with nonparalytic glottic incompetence (GI). METHODS: Thirty-five patients with nonparalytic GI who underwent TVFI followed by GMT were retrospectively reviewed. Change in voice-related quality of life (VRQOL) after TVFI was compared to change in VRQOL 3 to 9 months after GMT...
January 1, 2017: Annals of Otology, Rhinology, and Laryngology
https://www.readbyqxmd.com/read/28099887/comparative-proteomics-of-paired-vocal-fold-and-oral-mucosa-fibroblasts
#7
Michael Karbiener, Barbara Darnhofer, Marie-Therese Frisch, Beate Rinner, Ruth Birner-Gruenberger, Markus Gugatschka
: Injuries of the vocal folds frequently heal with scar formation, which can have lifelong detrimental impact on voice quality. Current treatments to prevent or resolve scars of the vocal fold mucosa are highly unsatisfactory. In contrast, the adjacent oral mucosa is mostly resistant to scarring. These differences in healing tendency might relate to distinct properties of the fibroblasts populating oral and vocal fold mucosae. We thus established the in vitro cultivation of paired, near-primary vocal fold fibroblasts (VFF) and oral mucosa fibroblasts (OMF) to perform a basic cellular characterization and comparative cellular proteomics...
January 15, 2017: Journal of Proteomics
https://www.readbyqxmd.com/read/28097934/automatic-and-quantitative-measurement-of-laryngeal-video-stroboscopic-images
#8
Chung-Feng Jeffrey Kuo, Joseph Kuo, Shang-Wun Hsiao, Chi-Lung Lee, Jih-Chin Lee, Bo-Han Ke
The laryngeal video stroboscope is an important instrument for physicians to analyze abnormalities and diseases in the glottal area. Stroboscope has been widely used around the world. However, without quantized indices, physicians can only make subjective judgment on glottal images. We designed a new laser projection marking module and applied it onto the laryngeal video stroboscope to provide scale conversion reference parameters for glottal imaging and to convert the physiological parameters of glottis. Image processing technology was used to segment the important image regions of interest...
January 2017: Proceedings of the Institution of Mechanical Engineers. Part H, Journal of Engineering in Medicine
https://www.readbyqxmd.com/read/28095928/one-hundred-years-of-external-approach-medialisation-thyroplasty
#9
V E Crolley, N Gibbins
It has been 100 years since Erwin Payr first developed an operation to improve the effects of a paralysed vocal fold, and operations based on this technique are still in use today. This technique, medialisation thyroplasty, aims to improve the symptoms caused by vocal fold palsy by realigning the lateralised vocal fold into the midline. Whilst the effects of vocal fold palsy were recognised in antiquity, it was only with the development of indirect laryngoscopy in the late nineteenth century that the vocal fold paralysis could be identified as an aetiology for poor phonation and dysphagia...
January 18, 2017: Journal of Laryngology and Otology
https://www.readbyqxmd.com/read/28089485/perceptual-error-analysis-of-human-and-synthesized-voices
#10
Marina Englert, Glaucya Madazio, Ingrid Gielow, Jorge Lucero, Mara Behlau
OBJECTIVE/HYPOTHESIS: To assess the quality of synthesized voices through listeners' skills in discriminating human and synthesized voices. STUDY DESIGN: Prospective study. METHODS: Eighteen human voices with different types and degrees of deviation (roughness, breathiness, and strain, with three degrees of deviation: mild, moderate, and severe) were selected by three voice specialists. Synthesized samples with the same deviations of human voices were produced by the VoiceSim system...
January 12, 2017: Journal of Voice: Official Journal of the Voice Foundation
https://www.readbyqxmd.com/read/28089390/quantitative-evaluation-of-the-in-vivo-vocal-fold-medial-surface-shape
#11
Andrew M Vahabzadeh-Hagh, Zhaoyan Zhang, Dinesh K Chhetri
OBJECTIVES/HYPOTHESIS: Glottal insufficiency is a common clinical problem in otolaryngology and medialization laryngoplasty (ML) procedures remain the primary treatment modality. Although the goal of ML is to restore physiologic glottal posture and achieve optimal phonation, this posture has not been directly measured. In this study, we assessed glottal medial surface contour changes with selective activation of the intrinsic laryngeal muscles (ILMs). STUDY DESIGN: Basic science study using an in vivo canine hemilarynx model...
January 12, 2017: Journal of Voice: Official Journal of the Voice Foundation
https://www.readbyqxmd.com/read/28073284/posterior-glottic-insufficiency-in-children
#12
Reema Padia, Marshall E Smith
BACKGROUND: Dysphonia secondary to posterior glottic insufficiency (PGI) can be difficult to identify and correct. Inadequate arytenoid approximation from medial arytenoid erosion results in a breathy, soft voice. The anatomical location of the gap is difficult to correct by vocal fold injection laryngoplasty. This study reviews the presentation, evaluation, and treatment for pediatric patients who were identified with PGI. METHODS: An Institutional Review Board-approved chart review was performed on all patients who were diagnosed with PGI at our institution from 2013 to 2015...
January 1, 2017: Annals of Otology, Rhinology, and Laryngology
https://www.readbyqxmd.com/read/28072470/sonographic-dynamic-description-of-the-laryngeal-tract-definition-of-quantitative-measures-to-characterize-vocal-fold-motion-and-estimation-of-their-normal-values
#13
Héloïse Bergeret-Cassagne, Diane S Lazard, Muriel Lefort, Siham Hachi, Laurence Leenhardt, Fabrice Menegaux, Gilles Russ, Christophe Trésallet, Frédérique Frouin
Vocal fold motion was analyzed during free breathing using two-dimensional dynamic ultrasound imaging. Two cadavers were first analyzed to define easily identifiable landmarks. Motion of the laryngeal tract was then analyzed in an axial plane. Left and right arytenoids and thyroid cartilage were defined on images corresponding to abduction and adduction of the laryngeal tract. Associated area measurements were established for 50 healthy subjects. All area indices were significantly larger during abduction than adduction...
January 10, 2017: Journal of Ultrasound in Medicine: Official Journal of the American Institute of Ultrasound in Medicine
https://www.readbyqxmd.com/read/28062093/resonance-tube-or-lax-vox
#14
Jaana Tyrmi, Vojtěch Radolf, Jaromír Horáček, Anne-Maria Laukkanen
OBJECTIVE: This study compares the flow resistance of Resonance tube (RT) and Lax Vox tube (LVT) when submerged 2 cm and 10 cm in water, as well as phonation into the tubes in these conditions. METHODS: In the in vitro experiment, the air pressure for flow rates of 60-600 mL/s was measured at the tube inlet, when the outer end of the tube was submerged 2 cm and 10 cm below water surface in 30°, 45°, and 90° angle. In the in vivo experiment, 14 subjects phonated in habitual loudness and loudly into both tubes, with the outer end 2 cm and 10 cm in water...
January 3, 2017: Journal of Voice: Official Journal of the Voice Foundation
https://www.readbyqxmd.com/read/28059441/neuromuscular-compensation-mechanisms-in-vocal-fold-paralysis-and-paresis
#15
Karuna Dewan, Andrew Vahabzadeh-Hagh, Donna Soofer, Dinesh K Chhetri
OBJECTIVES/HYPOTHESIS: Vocal fold paresis and paralysis are common conditions. Treatment options include augmentation laryngoplasty and voice therapy. The optimal management for this condition is unclear. The objective of this study was to assess possible neuromuscular compensation mechanisms that could potentially be used in the treatment of vocal fold paresis and paralysis. STUDY DESIGN: In vivo canine model. METHODS: In an in vivo canine model, we examined three conditions: 1) unilateral right recurrent laryngeal nerve (RLN) paresis and paralysis, 2) unilateral superior laryngeal nerve (SLN) paralysis, and 3) unilateral vagal nerve paresis and paralysis...
January 6, 2017: Laryngoscope
https://www.readbyqxmd.com/read/28045635/association-between-laryngeal-pepsin-levels-and-the-presence-of-vocal-fold-polyps
#16
Lu Wang, Jia-Jie Tan, Ting Wu, Rui Zhang, Jia-Nuan Wu, Fang-Fang Zeng, You-Li Liu, Xiao-Yan Han, Yan-Fei Li, Xiang-Ping Li
Objective To determine whether pepsin, the main component of refluxed gastric contents, is significantly associated with vocal fold polyps and to evaluate the diagnostic value of pepsin in vocal fold polyps' tissues. Study Design Cross-sectional study. Setting Nanfang Hospital of Southern Medical University. Subjects and Methods The study included 32 patients with vocal fold polyps and 16 healthy controls between 2011 and 2012. Reflux symptom index and reflux finding score assessments, 24-hour combined multichannel intraluminal impedance and pH monitoring, and biopsy of the vocal fold polyp tissues or posterior laryngeal mucosa (healthy controls) for immunohistochemical pepsin staining were performed...
January 2017: Otolaryngology—Head and Neck Surgery
https://www.readbyqxmd.com/read/28040341/the-influence-of-vowels-on-vocal-fold-dynamics-in-the-tenor-s-passaggio
#17
Matthias Echternach, Fabian Burk, Marie Köberlein, Michael Burdumy, Michael Döllinger, Bernhard Richter
INTRODUCTION: The influence of vowels on the frequency region where registration events in male voices usually occur (passaggio) has not yet been clarified. Particularly, for tenors who frequently have to sing across the passaggio, it might be assumed that the vowel quality has an influence on the stability of phonation. METHODS: In this investigation, six professionally trained Western classical tenors performed a glide from A3 (220 Hz) to A4 (440 Hz) and were recorded using high-speed videoendoscopy at 20,000 fps via transnasal flexible endoscopy...
December 28, 2016: Journal of Voice: Official Journal of the Voice Foundation
https://www.readbyqxmd.com/read/28034706/vagal-and-recurrent-laryngeal-nerves-neuromonitoring-during-thyroidectomy-and-parathyroidectomy-a-prospective-study
#18
N Julien, E Ferrary, A Sokoloff, G Lamas, O Sterkers, D Bernadeschi
OBJECTIVES: The aim of the study was to stimulate the vagal and the recurrent laryngeal nerves during and after thyroidectomy or parathyroidectomy, to record muscle responses, interpret the electrophysiological modifications and identify prognostic factors for postoperative vocal fold mobility. PATIENTS AND METHODS: A prospective study monitored 151 vagal nerves and 144 recurrent laryngeal nerves in 114 patients. Seven patients (14 vagal nerves) underwent continuous monitoring via an automatic periodic stimulation (APS(®)) electrode...
December 26, 2016: European Annals of Otorhinolaryngology, Head and Neck Diseases
https://www.readbyqxmd.com/read/28017461/comparing-chalk-with-cheese-the-egg-contact-quotient-is-only-a-limited-surrogate-of-the-closed-quotient
#19
Christian T Herbst, Harm K Schutte, Daniel L Bowling, Jan G Svec
The electroglottographic (EGG) contact quotient (CQegg), an estimate of the relative duration of vocal fold contact per vibratory cycle, is the most commonly used quantitative analysis parameter in EGG. The purpose of this study is to quantify the CQegg's relation to the closed quotient, a measure more directly related to glottal width changes during vocal fold vibration and the respective sound generation events. Thirteen singers (six females) phonated in four extreme phonation types while independently varying the degree of breathiness and vocal register...
December 22, 2016: Journal of Voice: Official Journal of the Voice Foundation
https://www.readbyqxmd.com/read/28017460/vocal-tract-adjustments-of-dysphonic-and-non-dysphonic-women-pre-and-post-flexible-resonance-tube-in-water-exercise-a-quantitative-mri-study
#20
Rosiane Yamasaki, Emi Z Murano, Eloisa Gebrim, Adriana Hachiya, Arlindo Montagnoli, Mara Behlau, Domingos Tsuji
OBJECTIVE: To compare vocal tract (VT) adjustments of dysphonic and non-dysphonic women before and after flexible resonance tube in water exercise (FRTWE) at rest and during phonation using magnetic resonance imaging. STUDY DESIGN: Prospective study. METHODS: Twenty women, aged 20-40 years, 10 dysphonic with vocal nodules (VNG) and 10 controls (CG), underwent four sets of sagittal VT MRI: two pre-FRTWE, at rest and during phonation, and two post-FRTWE, during phonation and at rest...
December 22, 2016: Journal of Voice: Official Journal of the Voice Foundation
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