keyword
MENU ▼
Read by QxMD icon Read
search

Vocal fold

keyword
https://www.readbyqxmd.com/read/29678501/anatomic-factors-affecting-the-use-of-ultrasound-to-predict-vocal-fold-motion-a-pilot-study
#1
Maheer M Masood, Benjamin Huang, Allie Goins, Trevor G Hackman
PURPOSE: Ultrasonography is a well-established modality for visualization of head and neck anatomy. Using ultrasound to detect vocal fold mobility has been described before, but no study has evaluated factors affecting the exam reliability. The aim of the study is to determine anatomic factors influencing the reliability of ultrasound to detect vocal fold motion. Methods and materials Patients underwent ultrasound evaluation and flexible laryngoscopy to assess vocal fold motion from August 2015 to March 2016...
April 13, 2018: American Journal of Otolaryngology
https://www.readbyqxmd.com/read/29678440/office-based-autologous-fat-injection-laryngoplasty-for-glottic-insufficiency-in-patients-under-50-years-old
#2
Hao-Chun Hu, Yi-Ting Hung, Shu-Yi Lin, Tao-Hsin Tung, Shyue-Yih Chang
OBJECTIVE: We sought to determine the outcomes of office-based autologous fat injection laryngoplasty in the treatment of patients under 50 years old with glottic insufficiency but without neurological problems or acquired organic lesions in the vocal fold. METHODS: We conducted a retrospective chart review of consecutive patients under 50 years of age who underwent office-based autologous fat injection laryngoplasty for glottic insufficiency. None of the patients presented neurological problems or acquired organic lesions in the vocal fold...
April 17, 2018: Journal of Voice: Official Journal of the Voice Foundation
https://www.readbyqxmd.com/read/29671091/prolonged-phonation-impairs-the-integrity-and-barrier-function-of-porcine-vocal-fold-epithelium-a-preliminary-study
#3
Chi Zhang, Kieran Paddock, Adriana Chou, Austin Scholp, Ting Gong, Jack J Jiang
PURPOSE: Voice abuse is known to be a common risk factor of voice disorders and prolonged; high-intensity phonation has been shown to damage the vocal fold epithelium. We aim to evaluate the effects of phonation on the integrity and barrier function of vocal fold epithelium using a porcine laryngeal model. METHODS: Ex vivo porcine larynges were phonated at low intensity or high intensity for 15, 30, or 60 min within 4 h after harvest. Vocal fold epithelium was visualized using transmission electron microscopy (TEM)...
April 18, 2018: European Archives of Oto-rhino-laryngology
https://www.readbyqxmd.com/read/29668038/photodynamic-therapy-induces-antifibrotic-alterations-in-primary-human-vocal-fold-fibroblasts
#4
Chi Zhang, Jiajia Wang, Adriana Chou, Ting Gong, Erin E Devine, Jack J Jiang
OBJECTIVES/HYPOTHESIS: Photodynamic therapy (PDT) is a promising treatment modality for laryngeal dysplasia, early-stage carcinoma, and papilloma, and was reported to have the ability to preserve laryngeal function and voice quality without clinical fibrotic response. We aimed to investigate the mechanism behind the antifibrotic effects of PDT on primary human vocal fold fibroblasts (VFFs) in vitro. STUDY DESIGN: In vitro analysis from one human donor. METHODS: Cell viability of VFFs in response to varying doses of PDT was investigated by the Cell Counting Kit-8 method...
April 18, 2018: Laryngoscope
https://www.readbyqxmd.com/read/29666294/laryngeal-responses-to-mechanically-assisted-cough-in-progressing-amyotrophic-lateral-sclerosis
#5
Tiina M Andersen, Astrid Sandnes, Ove Fondenes, Roy M Nilsen, Ole-Bjørn Tysnes, John-Helge Heimdal, Hege H Clemm, Thomas Halvorsen, Maria Vollsœter, Ola D Røksund
BACKGROUND: Respiratory complications represent the major cause of death in amyotrophic lateral sclerosis (ALS). Noninvasive respiratory support is the mainstay therapy, but treatment becomes challenging as the disease progresses, possibly due to a malfunctioning larynx, which is the entrance to the airways. We studied laryngeal response patterns to mechanically assisted cough (mechanical insufflation-exsufflation) as ALS progresses. METHODS: This prospective longitudinal study of 13 consecutively included subjects with ALS were followed up during 2011-2016 with repeated tests of lung function, neurological status, and laryngeal responses to mechanical insufflation-exsufflation using video-recorded flexible transnasal fiberoptic laryngoscopy...
April 17, 2018: Respiratory Care
https://www.readbyqxmd.com/read/29665890/a-novel-technique-to-identify-the-nerve-of-origin-in-head-and-neck-schwannomas
#6
H H Ching, A G Spinner, N H Reeve, R C Wang
OBJECTIVE: Identifying the nerve of origin in head and neck schwannomas is a diagnostic challenge. Surgical management leads to a risk of permanent deficit. Accurate identification of the nerve would improve operative planning and patient counselling. METHODS: Three patients with head and neck schwannomas underwent a diagnostic procedure hypothesised to identify the nerve of origin. The masses were infiltrated with 1 per cent lidocaine solution, and the patients were observed for neurological deficits...
April 18, 2018: Journal of Laryngology and Otology
https://www.readbyqxmd.com/read/29665310/custom-designing-laryngoplasty-implant-using-actual-size-ct-scan-images-on-a-mobile-device
#7
Chadwan Al Yaghchi, Jay Ahmed, Yasmin Grant, Gitta Madani, Guri Sandhu
CT scan images of the larynx are formatted in an oblique axial plane at the level of the paralysed vocal cord. The image size is adjusted to the 'actual' size of the larynx on a mobile device screen, and then transferred on to transparent tracing paper.The actual size sketch is used to design a near perfect fit silastic implant reducing the need for repeated adjustments, and allowing localised fold medialisation. This article is protected by copyright. All rights reserved.
April 17, 2018: Clinical Otolaryngology
https://www.readbyqxmd.com/read/29661610/office-based-endoscopic-botulinum-toxin-injection-in-laryngeal-movement-disorders
#8
A Kaderbay, C A Righini, P F Castellanos, I Atallah
INTRODUCTION: Botulinum toxin injection is widely used for the treatment of laryngeal movement disorders. Electromyography-guided percutaneous injection is the technique most commonly used to perform intralaryngeal botulinum toxin injection. OBJECTIVE: We describe an endoscopic approach for intralaryngeal botulinum toxin injection under local anaesthesia without using electromyography. TECHNIQUE: A flexible video-endoscope with an operating channel is used...
April 13, 2018: European Annals of Otorhinolaryngology, Head and Neck Diseases
https://www.readbyqxmd.com/read/29659184/the-human-laryngeal-innervation-revisited-the-role-of-the-neural-connections
#9
C Martín-Oviedo, E Maranillo, J R Sañudo, P Pérez-LLoret, E Verdú, T Martínez-Guirado, O Álvarez-Montero, J M Gómez Martín-Zarco, T Vázquez
In spite that vascular inconvenients or immunological rejections have been solved in relation with larynx transplant, a successful functional reinnervation has not been achieved. Some studies have suggested that laryngeal nerve connection may contain motor fibers, which could explain unexpected evoked responses in electromyographic studies or the different positions adopted of the vocal folds after similar nerve lesions. Ten patients with unexpected evoked responses after laryngeal nerve stimulation were selected...
April 16, 2018: Anatomical Record: Advances in Integrative Anatomy and Evolutionary Biology
https://www.readbyqxmd.com/read/29652686/massive-macroglossia-after-posterior-cranial-fossa-surgery-a-case-report
#10
Jennifer F Ha, Lisa N Vitale, Marie A Pfarr, Yu Kawai, David A Zopf
A 16-year-old boy with Chiari 1 malformation presented for an elective suboccipital craniectomy and C1 laminectomy. His intraoperative course was uneventful. At the conclusion of the procedure, he met extubation criteria and followed commands. After extubation, he developed progressive upper airway obstruction and became obtunded. He was reintubated via videolaryngoscopy, which showed edema not only to the tongue, but also to the posterior pharynx and blisters over the vocal folds and epiglottis. The patient was transferred to the pediatric intensive care unit intubated and sedated...
April 15, 2018: A&A practice
https://www.readbyqxmd.com/read/29652232/long-term-tumor-control-following-stereotactic-radiosurgery-for-jugular-paraganglioma-using-3d-volumetric-segmentation
#11
Neil S Patel, Matthew L Carlson, Bruce E Pollock, Colin L W Driscoll, Brian A Neff, Robert L Foote, Christine M Lohse, Michael J Link
OBJECTIVE The morbidity of gross-total resection of jugular paraganglioma (JP) is often unacceptable due to the potential for irreversible lower cranial neuropathy. Stereotactic radiosurgery (SRS) has been used at the authors' institution since 1990 for the treatment of JP and other benign intracranial tumors. Conventional means of assessing tumor progression using linear measurements or elliptical approximations are imprecise due to the irregular shape and insinuating growth pattern of JP. The objective of this study was to assess long-term tumor control in these patients by using slice-by-slice 3D volumetric segmentation of serial MRI data...
April 13, 2018: Journal of Neurosurgery
https://www.readbyqxmd.com/read/29651311/the-importance-of-the-occupational-vocal-load-for-the-occurence-and-treatment-of-organic-voice-disorders
#12
Miha Zabret, Irena Hočevar Boltežar, Maja Šereg Bahar
Introduction: The voice represents a basic working tool for carrying out certain occupations. Hoarseness, as a consequence of vocal fold lesions, presents an important cause of work-related absences for voice professionals. Methods: Our study was designed as a retrospective cohort one. Data on gender, workplace, vocal load and exposure to risk factors for voice disorders of the patients who had surgery in the 2014-2015 period at the tertiary centre due to benign vocal fold lesions were collected from their clinical records...
March 2018: Zdravstveno Varstvo
https://www.readbyqxmd.com/read/29650330/registers-in-infant-phonation
#13
Eugene H Buder, Valerie F McDaniel, Edina R Bene, Jennifer Ladmirault, D Kimbrough Oller
The primary vocal registers of modal, falsetto, and fry have been studied in adults but not per se in infancy. The vocal ligament is thought to play a critical role in the modal-falsetto contrast but is still developing during infancy (Tateya and Tateya, 2015). Cover tissues are also implicated in the modal-fry contrast, but the low fundamental frequency (fo ) cutoff of 70 Hz, shared between genders, suggests a psychoacoustic basis for the contrast. Buder, Chorna, Oller, and Robinson (2008)6 used the labels of "loft," "modal," and "pulse" for distinct vibratory regimes that appear to be identifiable based on spectrographic inspection of harmonic structure and auditory judgments in infants, but this work did not supply acoustic measurements to verify which of these nominally labeled regimes resembled adult registers...
April 9, 2018: Journal of Voice: Official Journal of the Voice Foundation
https://www.readbyqxmd.com/read/29648522/the-impact-of-recurrent-laryngeal-nerve-lesion-on-oropharyngeal-muscle-activity-and-sensorimotor-integration-in-an-infant-pig-model
#14
Katherine R DeLozier, Francois David Henry Gould, Jocelyn Ohlemacher, Allan J Thexton, Rebecca Z German
The successful performance of a swallow requires dynamic integration, between a wide range of sensory inputs and muscle activities, to produce the coordinated kinematics of oropharyngeal structures. Damage to the recurrent laryngeal nerve (RLN) produces dysphagia in infants, with food or liquid entering the airway, despite this nerve having minimal direct sensory or motor connections to the act of swallowing, apart from vocal fold closure. Previous results have demonstrated that a complete RLN lesion disrupts both performance and kinematics prior to initiation of the pharyngeal swallow in infants...
April 12, 2018: Journal of Applied Physiology
https://www.readbyqxmd.com/read/29644939/activation-of-the-wnt-%C3%AE-catenin-pathway-by-an-inflammatory-microenvironment-affects-the-myogenic-differentiation-capacity-of-human-laryngeal-mucosa-mesenchymal-stromal-cells
#15
Runqin Yang, Xiaoshan Yang, Shiyu Liu, Leiguo Ming, Zhifei Zhou, Yuanyuan Liang, Yu Zhao, Fuxing Zhou, Zhi-Hong Deng, Yan Jin
Various microenvironments influence the multiple differentiation potential of mesenchymal stromal cells. For example, inflammatory microenvironment can suppress the myogenic differentiation capability of laryngeal mucosa mesenchymal stromal cells (LM-MSCs). The present study therefore sought to identify the underlying molecular mechanisms regulating these processes. We isolated a novel population of MSCs, LM-MSCs, from the laryngeal mucosa tissues. The cells were cultured in osteogenic, adipogenic, and myogenic differentiation medium in the presence or absence of IL-1β and TNF-α (to simulate inflammatory microenvironment)...
April 12, 2018: Stem Cells and Development
https://www.readbyqxmd.com/read/29626250/effect-of-voice-therapy-on-vocal-fold-polyp-treatment
#16
Mustafa Sahin, Sercan Gode, Murat Dogan, Tayfun Kirazli, Fatih Ogut
PURPOSE: To investigate the role of voice therapy (VT) and factors that may affect the response to VT in the treatment of vocal fold polyps, especially as a complement to phonosurgery. METHODS: Retrospective review of patients with vocal fold polyp undergoing surgery and/or VT in a tertiary medical center. The demographic data, phoniatric history, videolaryngostroboscopic findings, polyp characteristics, VHI-10 and GRB scores, and voice analysis data were recorded before and after the treatment...
April 6, 2018: European Archives of Oto-rhino-laryngology
https://www.readbyqxmd.com/read/29625720/a-computerized-tomography-study-of-vocal-tract-setting-in-hyperfunctional-dysphonia-and-in-belting
#17
Marcelo Saldias, Marco Guzman, Gonzalo Miranda, Anne-Maria Laukkanen
BACKGROUND: Vocal tract setting in hyperfunctional patients is characterized by a high larynx and narrowing of the epilaryngeal and pharyngeal region. Similar observations have been made for various singing styles, eg, belting. The voice quality in belting has been described to be loud, speech like, and high pitched. It is also often described as sounding "pressed" or "tense". The above mentioned has led to the hypothesis that belting may be strenuous to the vocal folds...
April 3, 2018: Journal of Voice: Official Journal of the Voice Foundation
https://www.readbyqxmd.com/read/29624876/very-long-term-voice-handicap-index-voice-outcomes-after-montgomery-thyroplasty-a-cross-sectional-study
#18
G Desuter, E Zapater, S van der Vorst, S Henrard, J T van Lith-Bijl, P P van Benthem, E V Sjögren
OBJECTIVE: The aim of this multi-centric cross-sectional study was to examine the permanency of Montgomery Thyroplasty (MTIS) results from a patient's perspective. DESIGN: The study consisted of collecting Voice Handicap Index (VHI-30) questionnaires from patients who had been previously been operated with MTIS between 2 and 12 years before. Very long term (>2 years) post-operative data were compared to the previously acquired pre-operative and early post-operative VHI results...
April 6, 2018: Clinical Otolaryngology
https://www.readbyqxmd.com/read/29621392/life-experience-of-patients-with-unilateral-vocal-fold-paralysis
#19
David O Francis, Ariel E Sherman, Kristen L Hovis, Kemberlee Bonnet, David Schlundt, C Gaelyn Garrett, Louise Davies
Importance: Clinicians and patients benefit when they have a clear understanding of how medical conditions influence patients' life experiences. Patients' perspectives on life with unilateral vocal fold paralysis have not been well described. Objective: To promote patient-centered care by characterizing the patient experiences of living with unilateral vocal fold paralysis. Design, Setting, and Participants: This study used mixed methods: surveys using the voice and dysphagia handicap indexes (VHI and DHI) and semistructured interviews with adults with unilateral vocal cord paralysis recruited from a tertiary voice center...
April 5, 2018: JAMA Otolaryngology—Head & Neck Surgery
https://www.readbyqxmd.com/read/29615529/japanese-macaque-phonatory-physiology
#20
Christian T Herbst, Hiroki Koda, Takumi Kunieda, Juri Suzuki, Maxime Garcia, W Tecumseh Fitch, Takeshi Nishimura
While the call repertoire and its communicative function is relatively well explored in Japanese macaques ( Macaca fuscata ), little empirical data is available on the physics and the physiology of this species' vocal production mechanism. Here, a 6 year old female Japanese macaque was trained to phonate under an operant conditioning paradigm. The resulting "coo" calls, and spontaneously uttered "growl" and "chirp" calls, were recorded with sound pressure level (SPL) calibrated microphones and electroglottography (EGG), a non-invasive method for assessing the dynamics of phonation...
April 3, 2018: Journal of Experimental Biology
keyword
keyword
50180
1
2
Fetch more papers »
Fetching more papers... Fetching...
Read by QxMD. Sign in or create an account to discover new knowledge that matter to you.
Remove bar
Read by QxMD icon Read
×

Search Tips

Use Boolean operators: AND/OR

diabetic AND foot
diabetes OR diabetic

Exclude a word using the 'minus' sign

Virchow -triad

Use Parentheses

water AND (cup OR glass)

Add an asterisk (*) at end of a word to include word stems

Neuro* will search for Neurology, Neuroscientist, Neurological, and so on

Use quotes to search for an exact phrase

"primary prevention of cancer"
(heart or cardiac or cardio*) AND arrest -"American Heart Association"