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https://www.readbyqxmd.com/read/28227129/modeling-of-pharyngoesophageal-segment-during-tracheoesophageal-phonation-in-total-laryngectomy-patients-with-preliminary-validation
#1
Teng Zhang, Siwei Bai, Ian Cook, Michal Szczesniak, Julia Maclean, Socrates Dokos, Teng Zhang, Siwei Bai, Ian Cook, Michal Szczesniak, Julia Maclean, Socrates Dokos, Siwei Bai, Michal Szczesniak, Socrates Dokos, Ian Cook, Julia Maclean, Teng Zhang
For patients with large or recurrent laryngeal cancer, total laryngectomy surgery is usually performed. In the absence of a larynx, tracheoesophageal (TE) voice is the gold standard for alaryngeal phonation. The mechanisms underlying TE voice are unknown, but pharyngoesophageal (PE) segment vibration has been shown to play a key role. The aim of this study was to systematically explore the mechanics of PE segment vibration during TE phonation. A 2D axisymmetric finite-element model with two domains representing the air and PE wall was developed...
August 2016: Conference Proceedings: Annual International Conference of the IEEE Engineering in Medicine and Biology Society
https://www.readbyqxmd.com/read/28216207/musculoskeletal-pain-and-occupational-variables-in-teachers-with-voice-disorders-and-in-those-with-healthy-voices-a-pilot-study
#2
Jhonatan da Silva Vitor, Larissa Thaís Donalonso Siqueira, Vanessa Veis Ribeiro, Janine Santos Ramos, Alcione Ghedini Brasolotto, Kelly Cristina Alves Silverio
PURPOSE: This study aimed to compare musculoskeletal pain perception in teachers with voice disorders and in those with healthy voices, and to investigate the relationship between musculoskeletal pain and occupational variables (ie, work journey per week and working period). METHOD: Forty-three classroom teachers were divided into two groups: dysphonic group (DG), 32 classroom teachers with voice complaints and voice disorders; and non-DG, 11 classroom teachers without voice complaints and who are vocally healthy...
February 16, 2017: Journal of Voice: Official Journal of the Voice Foundation
https://www.readbyqxmd.com/read/28179887/association-between-laryngeal-airway-aperture-and-the-discharge-rates-of-genioglossus-motor-units
#3
Amy LaCross, Peter J Watson, E Fiona Bailey
We know very little about how muscles and motor units in one region of the upper airway are impacted by adjustments in an adjacent airway region. In this case, the focus is on regulation of the expiratory airstream by the larynx and how changes in laryngeal aperture impact muscle motor unit activities downstream in the pharynx. We selected sound production as a framework for study as it requires (i) sustained expiratory airflow, (ii) laryngeal airway regulation for production of whisper and voice, and (iii) pharyngeal airway regulation for production of different vowel sounds...
2017: Frontiers in Physiology
https://www.readbyqxmd.com/read/28177282/cilia-mediated-hedgehog-signaling-controls-form-and-function-in-the-mammalian-larynx
#4
Jacqueline M Tabler, Maggie M Rigney, Gordon J Berman, Swetha Gopalakrishnan, Eglantine Heude, Hadeel A Al-Lami, Basil Z Yannakoudakis, Rebecca D Fitch, Christopher M Carter, Steven A Vokes, Karen J Liu, Shahragim Tajbakhsh, Se Roian Egnor, John B Wallingford
Acoustic communication is fundamental to social interactions among animals, including humans. In fact, deficits in voice impair the quality of life for a large and diverse population of patients. Understanding the molecular genetic mechanisms of development and function in the vocal apparatus is thus an important challenge with relevance both to the basic biology of animal communication and to biomedicine. However, surprisingly little is known about the developmental biology of the mammalian larynx. Here, we used genetic fate mapping to chart the embryological origins of the tissues in the mouse larynx, and we describe the developmental etiology of laryngeal defects in mice with disruptions in cilia-mediated Hedgehog signaling...
February 8, 2017: ELife
https://www.readbyqxmd.com/read/28131459/hemilaryngeal-microsomia-an-anatomic-variant
#5
Matthew J Urban, Jillian Mattioni, Aaron Jaworek, Valeria Potigailo, Robert T Sataloff
OBJECTIVES: This study aims to describe a congenital laryngeal structural variant, hemilaryngeal microsomia (HLM), and to correlate identification on physical examination with computerized tomography scan (CT) and laryngoscopy findings. METHODS: The study was conducted at a tertiary care center. Six patients presenting with hoarseness were admitted to a tertiary care otolaryngology office. These patients had asymmetrical thyroid cartilage prominence on palpation during physical examination...
January 25, 2017: Journal of Voice: Official Journal of the Voice Foundation
https://www.readbyqxmd.com/read/28098054/long-term-esophageal-motility-changes-after-thyroidectomy-associations-with-aerodigestive-disorders
#6
G Scerrino, A Inviati, S Di Giovanni, N C Paladino, S Di Giovanni, N C Paladino, V Di Paola, C Raspanti, G I Melfa, F Cupido, S Mazzola, C Porrello, S Bonventre, G Gullotta
BACKGROUND: Patients undergoing thyroidectomy often complain aerodigestive disorders. In a previous study we showed the associations between voice impairment and proximal acid reflux, swallowing impairment and Upper Esophageal Sphyncter (UES) incoordination and the decrease in UES pressure in thirty-six patients observed before and soon afterwards uncomplicated thyroidectomy. This study investigated the state of post-thyroidectomy esophageal motility changes and its associations with these disorders after 18-24 months...
September 2017: Il Giornale di Chirurgia
https://www.readbyqxmd.com/read/28004504/association-between-24-hour-combined-multichannel-intraluminal-impedance-ph-monitoring-and-symptoms-or-quality-of-life-in-patients-with-laryngopharyngeal-reflux
#7
S I Kim, O E Kwon, S Y Na, Y C Lee, J M Park, Y G Eun
OBJECTIVE: To evaluate the association between the parameters of 24-hour multichannel intraluminal impedance (MII)-pH monitoring and the symptoms or quality of life (QoL) in laryngopharyngeal reflux (LPR) patients. DESIGN: Prospective cohort study without controls. SETTING: University teaching hospital. METHODS: Forty-five LPR patients were selected from subjects who underwent 24-hour MII-pH monitoring and were diagnosed with LPR from September 2014 to May 2015...
December 22, 2016: Clinical Otolaryngology
https://www.readbyqxmd.com/read/27995544/transoral-robotic-resection-of-a-combined-laryngocele
#8
T J Gal, Brian Hixon, Paul Zhang
This case report describes the use of trans-oral robotic surgery (TORS) for the excision of a combined laryngocele. Mixed or combined laryngoceles extend from the supraglottic larynx through the thyrohyoid membrane into the neck. Surgical excision for these benign lesions often requires combined external (transcervical) and internal (transoral endoscopic) approaches which carry significant morbidity. We present the case of a 37-year-old male who was diagnosed with a large laryngopyocele and was subsequently managed with a transoral excision using the da Vinci Si surgical robot system...
December 19, 2016: Journal of Robotic Surgery
https://www.readbyqxmd.com/read/27993501/are-instructions-to-manipulate-specific-parameters-of-laryngeal-function-associated-with-auditory-perceptual-ratings-of-voice-quality-in-nondisordered-speakers
#9
Catherine J Madill, Christine Sheard, Robert Heard
OBJECTIVES/HYPOTHESIS: This preliminary study investigated whether auditory-perceptual judgments of voice quality by experienced speech language pathologists were associated with instructions given to speakers to manipulate specific laryngeal postures. STUDY DESIGN: Experimental, within-subject design. METHODS: Nine speakers were instructed and trained to manipulate three vocal parameters implicated in functional voice disorders-false vocal fold constriction, vocal fold mass, and larynx height-while reading a standard passage...
December 16, 2016: Journal of Voice: Official Journal of the Voice Foundation
https://www.readbyqxmd.com/read/27989394/combined-functional-voice-therapy-in-singers-with-muscle-tension-dysphonia-in-singing
#10
Ewelina Sielska-Badurek, Ewa Osuch-Wójcikiewicz, Maria Sobol, Ewa Kazanecka, Anna Rzepakowska, Kazimierz Niemczyk
OBJECTIVES: The purpose of this study was to evaluate vocal tract function and the voice quality in singers with muscle tension dysphonia (MTD) after undergoing combined functional voice therapy of the singing voice. DESIGN: This is a prospective, randomized study. METHODS: Forty singers (29 females and 11 males, mean age: 24.6 ± 8.8 years) with MTD were enrolled in the study. The study group consisted of 20 singers who underwent combined functional voice therapy (10-15 individual sessions, 30-40 minutes each)...
December 15, 2016: Journal of Voice: Official Journal of the Voice Foundation
https://www.readbyqxmd.com/read/27988198/primary-total-laryngectomy-and-pharyngolaryngectomy-in-t4-pharyngolaryngeal-cancers-oncologic-and-functional-results-and-prognostic-factors
#11
M Roux, O Dassonville, M Ettaiche, E Chamorey, G Poissonnet, A Bozec
OBJECTIVES: The aims of this study were to assess oncologic and functional outcome in primary total laryngectomy or pharyngolaryngectomy (TL/TL/TPL) for laryngeal or hypopharyngeal cancer with extra-laryngeal extension (T4) and to determine the predictive factors of these results. MATERIAL AND METHODS: A retrospective analysis was performed on the computerized medical records of all patients undergoing primary TL/TPL for T4 larynx or hypopharynx squamous cell carcinoma between 2000 and 2014 at our institution...
December 14, 2016: European Annals of Otorhinolaryngology, Head and Neck Diseases
https://www.readbyqxmd.com/read/27988066/laryngeal-mucosal-reaction-during-bronchial-histamine-challenge-test-visualized-by-videolaryngostroboscopy
#12
Maaria Ansaranta, Ahmed Geneid, Paula Kauppi, Leo Pekka Malmberg, Erkki Vilkman
OBJECTIVES/HYPOTHESIS: To examine the changes in the larynx, as well as self-reported voice and throat symptoms, among patients undergoing a histamine challenge test. Thus, to understand the possible clinical effects of histamine on the larynx. STUDY DESIGN: Controlled, open prospective study. METHODS: Thirty adult patients with prolonged cough and suspicion of bronchial asthma underwent a histamine challenge test. Videolaryngostroboscopy was performed immediately before and after the challenge...
December 14, 2016: Journal of Voice: Official Journal of the Voice Foundation
https://www.readbyqxmd.com/read/27943448/one-second-mri-of-a-three-dimensional-vocal-tract-to-measure-dynamic-articulator-modifications
#13
Michael Burdumy, Louisa Traser, Fabian Burk, Bernhard Richter, Matthias Echternach, Jan G Korvink, Jürgen Hennig, Maxim Zaitsev
PURPOSE: To enable three-dimensional (3D) vocal tract imaging of dynamic singing or speech tasks at voxel sizes of 1.6 × 1.6 × 1.3 mm(3) at 1.3 s per image. MATERIALS AND METHODS: A Stack-of-Stars method was implemented and enhanced to allow for fast and efficient k-space sampling of the box-shaped vocal tract using a 3 Tesla MRI system. Images were reconstructed using an off-line image reconstruction using compressed sensing theory, leading to the abovementioned spatial and temporal resolutions...
December 9, 2016: Journal of Magnetic Resonance Imaging: JMRI
https://www.readbyqxmd.com/read/27931522/effectiveness-of-fibrin-coating-in-the-management-of-web-formation-after-laryngomicrosurgery
#14
REVIEW
K Adachi, T Umezaki
PURPOSE: To explore the effectiveness of fibrin coating in reducing web formation after endoscopic management of the anterior commissure of the larynx. MATERIALS AND METHODS: Using a spray device that is generally used for laparoscopic operations, we covered the wound with fibrin glue (Bolheal®) to avoid web formation. This technique was employed in cases wherein the anterior commissure was mainly managed by laser operation; the glue was sprayed after vaporization...
January 2017: American Journal of Otolaryngology
https://www.readbyqxmd.com/read/27898173/an-update-on-larynx-cancer
#15
REVIEW
Conor E Steuer, Mark El-Deiry, Jason R Parks, Kristin A Higgins, Nabil F Saba
Answer questions and earn CME/CNE Laryngeal cancer remains one of the most common tumors of the respiratory tract. Fortunately, significant advancements have been made over the past decade in the treatment of laryngeal cancer. Although surgery has been the historical mainstay for localized disease and still is an integral part of treatment, nonsurgical options like radiation and systemic therapy have emerged as viable options. In addition, in the metastatic setting, novel agents are showing promise for this patient population...
January 2017: CA: a Cancer Journal for Clinicians
https://www.readbyqxmd.com/read/27876742/-on-the-problem-of-voice-rehabilitation-in-the-case-of-unilateral-vocal-fold-paresis
#16
V V Shilenkova
BACKGROUND: Unilateral vocal fold paresis (UVFP) significantly deteriorates the patient's quality of life. The leading role in the rehabilitation of the patients presenting with UVFP belongs to stimulation therapy which consists in the activation of muscle re-innervation of the larynx and the compensatory mechanisms allowing to achieve the most complete closure of the vocal folds during phonation. AIM: The objective of the present study was the optimization of the conservative treatment of patients with UVFP...
2016: Vestnik Otorinolaringologii
https://www.readbyqxmd.com/read/27876268/vocal-changes-accompanying-the-descent-of-the-larynx-during-ontogeny-from-neonates-to-adults-in-male-and-female-goitred-gazelles-gazella-subgutturosa
#17
Ilya A Volodin, Kseniya O Efremova, Roland Frey, Natalia V Soldatova, Elena V Volodina
The pronouncedly enlarged and descended larynx in male goitred gazelles (Gazella subgutturosa), Mongolian gazelles (Procapra gutturosa) and fallow deer (Dama dama) represents an interesting parallel to the 'Adam's apple' of human males. Goitred gazelles, as humans, are not born with a descended larynx. Therefore the sexual dimorphism of larynx size and position develops during ontogeny. In this study, the vocal ontogeny of male and female goitred gazelles was investigated across five age classes from neonates to adults...
September 12, 2016: Zoology: Analysis of Complex Systems, ZACS
https://www.readbyqxmd.com/read/27808413/a-new-solution-for-neonatal-bilateral-vocal-cord-paralysis-endoscopic-arytenoid-abduction-lateropexy
#18
Shahram Madani, Ádám Bach, Vera Matievics, Eszter Erdélyi, Balázs Sztanó, Ilona Szegesdi, Paul F Castellanos, László Rovó
OBJECTIVES/HYPOTHESIS: Bilateral vocal cord paralysis in early childhood is a life-threatening condition, which often requires immediate intervention. One of the treatment options is a quick, reversible simple suture vocal cord lateralizing technique, whereby the arytenoid cartilage is directly lateralized to the normal abducted position. Considering pediatric laryngeal anatomy, a small endolaryngeal thread guide instrument was designed for precise suture insertion. STUDY DESIGN: New instrument validation...
November 3, 2016: Laryngoscope
https://www.readbyqxmd.com/read/27743845/hierarchical-classification-and-system-combination-for-automatically-identifying-physiological-and-neuromuscular-laryngeal-pathologies
#19
Hugo Cordeiro, José Fonseca, Isabel Guimarães, Carlos Meneses
OBJECTIVES: Speech signal processing techniques have provided several contributions to pathologic voice identification, in which healthy and unhealthy voice samples are evaluated. A less common approach is to identify laryngeal pathologies, for which the use of a noninvasive method for pathologic voice identification is an important step forward for preliminary diagnosis. In this study, a hierarchical classifier and a combination of systems are used to improve the accuracy of a three-class identification system (healthy, physiological larynx pathologies, and neuromuscular larynx pathologies)...
October 12, 2016: Journal of Voice: Official Journal of the Voice Foundation
https://www.readbyqxmd.com/read/27742492/accuracy-of-acoustic-analysis-measurements-in-the-evaluation-of-patients-with-different-laryngeal-diagnoses
#20
Leonardo Wanderley Lopes, Layssa Batista Simões, Jocélio Delfino da Silva, Deyverson da Silva Evangelista, Ana Celiane da Nóbrega E Ugulino, Priscila Oliveira Costa Silva, Vinícius Jefferson Dias Vieira
OBJECTIVE: This study aims to investigate the accuracy of acoustic measures in discriminating between patients with different laryngeal diagnoses. STUDY DESIGN: The study design is descriptive, cross-sectional, and retrospective. METHODS: A total of 279 female patients participated in the research. Acoustic measures of the mean and standard deviation (SD) values of the fundamental frequency (F0), jitter, shimmer, and glottal to noise excitation (GNE) were extracted from the emission of the vowel /ε/...
October 11, 2016: Journal of Voice: Official Journal of the Voice Foundation
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