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https://www.readbyqxmd.com/read/28209437/the-accuracy-of-preoperative-rigid-stroboscopy-in-the-evaluation-of-voice-disorders-in-children
#1
Jobran Mansour, Ofer Amir, Doron Sagiv, Eran E Alon, Michael Wolf, Adi Primov-Fever
OBJECTIVES: Stroboscopy is considered the most appropriate tool for evaluating the function of the vocal folds but may harbor significant limitations in children. Still, direct laryngoscopy (DL), under general anesthesia, is regarded the "gold standard" for establishing a diagnosis of vocal fold pathology. The aim of the study is to examine the accuracy of preoperative rigid stroboscopy in children with voice disorders. STUDY DESIGN: This is a retrospective study...
February 13, 2017: Journal of Voice: Official Journal of the Voice Foundation
https://www.readbyqxmd.com/read/28208177/feasibility-and-associated-limitations-of-office-based-laryngeal-surgery-using-carbon-dioxide-lasers
#2
Hao-Chun Hu, Shu-Yi Lin, Yi-Ting Hung, Shyue-Yih Chang
Importance: There are few reports evaluating awake, office-based carbon dioxide (CO2) laser surgery for laryngeal lesions. To date, this study was the largest reported case series of office-based laryngeal surgery by fiber delivery CO2 laser. Office-based laryngeal surgical procedures have become increasingly popular. Technical problems and treatment outcomes associated with the use of a CO2 laser for office-based laryngeal surgery have yet to be fully addressed. Objectives: To discuss a single institution's clinical experience with office-based CO2 laser laryngeal surgery and the feasibility and limitations associated with this procedure...
February 16, 2017: JAMA Otolaryngology—Head & Neck Surgery
https://www.readbyqxmd.com/read/28203464/unilateral-laryngeal-pacing-system-and-its-functional-evaluation
#3
Taiping Zeng, Zhiping Zhang, Weiwei Peng, Fei Zhang, Baker Y Shi, Fangyi Chen
Goal. To establish a reliable instrumental system for synchronized reactivation of a unilaterally paralyzed vocal fold and evaluate its functional feasibility. Methods. Unilateral vocal fold paralysis model was induced by destruction of the left recurrent laryngeal nerve (RLN) in anesthetized dogs. With a micro controller-based electronic system, electromyography (EMG) signals from cricothyroid (CT) muscle on the ipsilateral side were recorded and used to trigger pacing of paralyzed vocalis muscles. The dynamic movement of vocal folds was continuously monitored using an endoscope, and the opening and closing of the glottis were quantified with customized imaging processing software...
2017: Neural Plasticity
https://www.readbyqxmd.com/read/28199505/influence-of-left-right-asymmetries-on-voice-quality-in-simulated-paramedian-vocal-fold-paralysis
#4
Robin A Samlan, Brad H Story
Purpose: The purpose of this study was to determine the vocal fold structural and vibratory symmetries that are important to vocal function and voice quality in a simulated paramedian vocal fold paralysis. Method: A computational kinematic speech production model was used to simulate an exemplar "voice" on the basis of asymmetric settings of parameters controlling glottal configuration. These parameters were then altered individually to determine their effect on maximum flow declination rate, spectral slope, cepstral peak prominence, harmonics-to-noise ratio, and perceived voice quality...
February 14, 2017: Journal of Speech, Language, and Hearing Research: JSLHR
https://www.readbyqxmd.com/read/28195018/glottic-closing-force-versus-laryngeal-adductory-pressure-in-the-canine-larynx
#5
Randal C Paniello, Neel K Bhatt
INTRODUCTION: The strength of glottic closure with recurrent laryngeal nerve (RLN) stimulation has been indirectly measured experimentally by determining the squeezing pressure on a balloon inserted between the vocal folds, termed laryngeal adductory pressure (LAP). In this study, we sought to measure glottic closing force (GCF) directly and compare these results to LAP measures obtained with identical stimulation parameters. METHODS: In canines, a method for measuring GCF was developed in which a suture was looped through a lateral thyrotomy hole, around the vocal process and back, then attached to a force gauge...
March 2017: Annals of Otology, Rhinology, and Laryngology
https://www.readbyqxmd.com/read/28191770/stem-cell-based-tissue-engineered-laryngeal-replacement
#6
Tahera Ansari, Peggy Lange, Aaron Southgate, Karin Greco, Carla Carvalho, Leanne Partington, Anthony Bullock, Sheila MacNeil, Mark W Lowdell, Paul D Sibbons, Martin A Birchall
Patients with laryngeal disorders may have severe morbidity relating to swallowing, vocalization, and respiratory function, for which conventional therapies are suboptimal. A tissue-engineered approach would aim to restore the vocal folds and maintain respiratory function while limiting the extent of scarring in the regenerated tissue. Under Good Laboratory Practice conditions, we decellularized porcine larynges, using detergents and enzymes under negative pressure to produce an acellular scaffold comprising cartilage, muscle, and mucosa...
February 2017: Stem Cells Translational Medicine
https://www.readbyqxmd.com/read/28190663/iranian-voice-quality-of-life-profile-ivqlp-factor-analysis
#7
Ali Dehqan, Fariba Yadegari, Ronald C Scherer, Ali Asgari, Payman Dabirmoghadam
OBJECTIVES: An important domain in health-related quality of life evaluations is quality of life perceptions due to having a voice disorder. The objective of this study was to examine the factor structure of the Iranian Voice Quality of Life Profile (IVQLP) based on Exploratory Factor Analysis and confirmatory factor analysis. METHODS: The study sample consisted of 280 patients (174 males and 106 females) diagnosed with MTD, benign organic disorders such as polyps and nodules, and unilateral vocal fold paralysis and cancer...
February 9, 2017: Journal of Voice: Official Journal of the Voice Foundation
https://www.readbyqxmd.com/read/28185301/feasibility-of-through-time-spiral-generalized-autocalibrating-partial-parallel-acquisition-for-low-latency-accelerated-real-time-mri-of-speech
#8
Sajan Goud Lingala, Yinghua Zhu, Yongwan Lim, Asterios Toutios, Yunhua Ji, Wei-Ching Lo, Nicole Seiberlich, Shrikanth Narayanan, Krishna S Nayak
PURPOSE: To evaluate the feasibility of through-time spiral generalized autocalibrating partial parallel acquisition (GRAPPA) for low-latency accelerated real-time MRI of speech. METHODS: Through-time spiral GRAPPA (spiral GRAPPA), a fast linear reconstruction method, is applied to spiral (k-t) data acquired from an eight-channel custom upper-airway coil. Fully sampled data were retrospectively down-sampled to evaluate spiral GRAPPA at undersampling factors R = 2 to 6...
February 10, 2017: Magnetic Resonance in Medicine: Official Journal of the Society of Magnetic Resonance in Medicine
https://www.readbyqxmd.com/read/28184253/concordance-between-the-tirads-ultrasound-criteria-and-the-bethesda-cytology-criteria-on-the-nontoxic-thyroid-nodule
#9
Hernando Vargas-Uricoechea, Ivonne Meza-Cabrera, Jorge Herrera-Chaparro
BACKGROUND: Thyroid nodule is a common disorder of the thyroid. Despite their benign nature, they can be associated with multiple pathologic conditions, including thyroid cancer. METHODS: This cross-sectional study determined the concordance of Ultrasound (TIRADS criteria) and Fine Needle Aspiration Biopsy (FNA-BETHESDA system) in the assessment of the nontoxic thyroid nodule. A total of 180 subjects 18 years old or older underwent the two diagnostic tests and their results were compared using kappa index...
2017: Thyroid Research
https://www.readbyqxmd.com/read/28171734/imiquimod-injection-to-rabbit-vocal-folds
#10
Stephanie E Teng, Gregory R Dion, Danielle N Sin, Nao Hiwatashi, Peter A Benedict, Milan R Amin, Ryan C Branski
Objective Given the recalcitrant nature of recurrent respiratory papillomatosis, targeted therapies to reduce disease burden are fundamental to improved patient care paradigms. We seek to demonstrate the safety of imiquimod injection into vocal fold mucosa by evaluating the degree of laryngeal edema, histopathologic changes to vocal fold structure, and serologic interferon α (IFNα) levels following injection. Study Design Preclinical. Setting Academic institution. Subjects and Methods Six New Zealand White rabbits underwent unilateral injection of 100 µg of sterile imiquimod (1 µg/µL), with 100 µL of normal saline injected into the contralateral vocal fold...
February 1, 2017: Otolaryngology—Head and Neck Surgery
https://www.readbyqxmd.com/read/28160937/a-review-of-our-experience-in-phonosurgery-in-children
#11
Mikel Landa, Idoia Palicio, Leire Álvarez, Zuriñe Martínez
INTRODUCTION AND OBJECTIVES: Dysphonia is a common problem in children, especially those of school age. Exploration of vocal folds is often difficult and less accurate in children. The most frequent lesions found in children with chronic dysphonia are vocal nodules, followed by epidermoid cysts and other congenital lesions, such as sulci and mucosal bridges. The treatment is multidisciplinary and it is fundamentally based on vocal rehabilitation. We indicate surgical treatment in children older than 9 years of age for whom the problem persists after rehabilitation, especially if we suspect a congenital lesion of the vocal fold...
February 1, 2017: Acta Otorrinolaringológica Española
https://www.readbyqxmd.com/read/28148461/measuring-quality-of-life-in-pediatric-paradoxical-vocal-fold-motion-using-the-sf-36v2
#12
Kershena S Liao, Paul E Kwak, Hazel Hewitt, Sarah Hollas, Julina Ongkasuwan
OBJECTIVES: Paradoxical vocal fold motion (PVFM) consists of intermittent adduction of the vocal folds during inspiration, resulting in stridor and worsened by anxiety and stress. The purpose of this study was to assess the impact of PVFM on quality of life in our pediatric patient population. STUDY DESIGN: This is a prospective, descriptive survey study. METHODS: Thirty-nine consecutive patients (ages 12-17 years) presenting with a PVFM diagnosis for respiratory retraining sessions with speech-language pathology were recruited...
January 30, 2017: Journal of Voice: Official Journal of the Voice Foundation
https://www.readbyqxmd.com/read/28144169/the-forgotten-cause-of-stridor-in-the-emergency-department
#13
Tian-Tee Ng
Paradoxical Vocal Fold Movement Disorder is where the larynx exhibits paradoxical vocal cords closure during respiration, creating partial airway obstruction. Causes of vocal fold movement disorder are multifactorial, and patients describe tightness of throat, difficulty getting air in, have stridor, and do not respond to inhalers. We propose using transnasal laryngoscopy examination, which will show narrowing of vocal cords on inspiration, and The Pittsburgh Vocal Cord Dysfunction Index with a cutoff score of ≥4 to distinguish vocal fold movement disorder from asthma and other causes of stridor...
2017: Open Access Emergency Medicine: OAEM
https://www.readbyqxmd.com/read/28139319/paradoxical-vocal-fold-motion-pvfm-in-pediatric-otolaryngology
#14
Blake Smith, Claudio Milstein, Bryan Rolfes, Samantha Anne
INTRODUCTION: Paradoxical vocal fold motion (PVFM) is a condition in which the vocal cords exhibit inappropriate inspiratory adduction, and it has been poorly studied in the pediatric population. METHODS: Pediatric patients diagnosed with PVCM by a pediatric otolaryngologist and doctor of speech pathology from 2008 to 2012 were reviewed. Patients in whom another cause for their respiratory disturbance was eventually identified were excluded. Patient demographics, characteristics, treatment, and outcomes were reviewed...
January 24, 2017: American Journal of Otolaryngology
https://www.readbyqxmd.com/read/28131551/inpatient-injection-laryngoplasty-for-vocal-fold-immobility-when-is-it-really-necessary
#15
Steven Zuniga, Barbara Ebersole, Nausheen Jamal
PURPOSE: To compare pulmonary and swallow outcomes of injection laryngoplasty when performed in the acute versus subacute setting in head & neck and thoracic cancer patients presenting with new onset unilateral vocal fold immobility. MATERIALS AND METHODS: Case series with chart review at an academic cancer center over a 2year period. Based on swallow evaluation, patients diagnosed with vocal fold immobility were grouped into an unsafe swallow group, injected as inpatients, and a safe swallow group, for whom injection laryngoplasty was delayed to the outpatient setting or not performed...
January 18, 2017: American Journal of Otolaryngology
https://www.readbyqxmd.com/read/28131460/polydimethylsiloxane-injection-laryngoplasty-for-unilateral-vocal-fold-paralysis-long-term-results
#16
Francesco Mattioli, Margherita Bettini, Cecilia Botti, Giulia Busi, Sauro Tassi, Andrea Malagoli, Gabriele Molteni, Marco Trebbi, Maria Pia Luppi, Livio Presutti
OBJECTIVES: To analyze the long-term objective, perceptive, and subjective outcomes after endoscopic polydimethylsiloxane (PDMS) injection laryngoplasty in unilateral vocal fold paralysis. STUDY DESIGN: A retrospective study carried out between January 2008 and January 2012. SETTING: Head and Neck Department, University Hospital of Modena, Modena, Italy. METHODS: This was a retrospective analysis of 26 patients with unilateral vocal fold paralysis who underwent endoscopic injection of PDMS under general anesthesia...
January 25, 2017: Journal of Voice: Official Journal of the Voice Foundation
https://www.readbyqxmd.com/read/28131459/hemilaryngeal-microsomia-an-anatomic-variant
#17
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/28124070/integration-of-motor-learning-principles-into-real-time-ambulatory-voice-biofeedback-and-example-implementation-via-a-clinical-case-study-with-vocal-fold-nodules
#18
Jarrad H Van Stan, Daryush D Mehta, Robert J Petit, Dagmar Sternad, Jason Muise, James A Burns, Robert E Hillman
Purpose: Ambulatory voice biofeedback (AVB) has the potential to significantly improve voice therapy effectiveness by targeting one of the most challenging aspects of rehabilitation: carryover of desired behaviors outside of the therapy session. Although initial evidence indicates that AVB can alter vocal behavior in daily life, retention of the new behavior after biofeedback has not been demonstrated. Motor learning studies repeatedly have shown retention-related benefits when reducing feedback frequency or providing summary statistics...
February 1, 2017: American Journal of Speech-language Pathology
https://www.readbyqxmd.com/read/28119095/unilateral-vocal-fold-adductor-paralysis-after-tracheal-intubation
#19
Takao Goto, Takaharu Nito, Rumi Ueha, Akihito Yamauchi, Taku Sato, Tatsuya Yamasoba
Vocal fold immobility is a relatively rare complication that can occur after tracheal intubation. Differential diagnoses include a rare clinical entity called unilateral vocal fold adductor paralysis in which only branches entering the thyroarytenoid and lateral cricoarytenoid muscles of the recurrent laryngeal nerve become paralyzed. Computed tomography and laryngeal electromyography are required to distinguish this condition from others such as cricoarytenoid dislocation/subluxation. Here, we describe two patients who developed vocal fold adductor paralysis after intubation...
January 21, 2017: Auris, Nasus, Larynx
https://www.readbyqxmd.com/read/28114611/characterization-of-vocal-fold-vibration-in-sulcus-vocalis-using-high-speed-digital-imaging
#20
Akihito Yamauchi, Hisayuki Yokonishi, Hiroshi Imagawa, Ken-Ichi Sakakibara, Takaharu Nito, Niro Tayama, Tatsuya Yamasoba
Purpose: The aim of the present study was to qualitatively and quantitatively characterize vocal fold vibrations in sulcus vocalis by high-speed digital imaging (HSDI) and to clarify the correlations between HSDI-derived parameters and traditional vocal parameters. Method: HSDI was performed in 20 vocally healthy subjects (8 men and 12 women) and 41 patients with sulcus vocalis (33 men and 8 women). Then HSDI data were evaluated by assessing the visual-perceptual rating, digital kymography, and glottal area waveform...
January 1, 2017: Journal of Speech, Language, and Hearing Research: JSLHR
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