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Unilateral Vocal Fold Paralysis

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https://www.readbyqxmd.com/read/28219447/medialization-thyroplasty-versus-injection-laryngoplasty-a-cost-minimization-analysis
#1
Samantha Tam, Hongmei Sun, Sisira Sarma, Jennifer Siu, Kevin Fung, Leigh Sowerby
BACKGROUND: Medialization thyroplasty and injection laryngoplasty are widely accepted treatment options for unilateral vocal fold paralysis. Although both procedures result in similar clinical outcomes, little is known about the corresponding medical care costs. Medialization thyroplasty requires expensive operating room resources while injection laryngoplasty utilizes outpatient resources but may require repeated procedures. The purpose of this study, therefore, is to quantify the cost differences in adult patients with unilateral vocal fold paralysis undergoing medialization thyroplasty versus injection laryngoplasty...
February 20, 2017: Journal of Otolaryngology—Head & Neck Surgery
https://www.readbyqxmd.com/read/28203464/unilateral-laryngeal-pacing-system-and-its-functional-evaluation
#2
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/28190663/iranian-voice-quality-of-life-profile-ivqlp-factor-analysis
#3
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/28131460/polydimethylsiloxane-injection-laryngoplasty-for-unilateral-vocal-fold-paralysis-long-term-results
#4
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/28119095/unilateral-vocal-fold-adductor-paralysis-after-tracheal-intubation
#5
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/28105659/effect-of-intralaryngeal-muscle-synkinesis-on-perception-of-voice-handicap-in-patients-with-unilateral-vocal-fold-paralysis
#6
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/28059441/neuromuscular-compensation-mechanisms-in-vocal-fold-paralysis-and-paresis
#7
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/28007326/unilateral-vocal-fold-paralysis-a-systematic-review-of-speech-language-pathology-management
#8
REVIEW
Chloe Walton, Erin Conway, Helen Blackshaw, Paul Carding
OBJECTIVES: Dysphonia due to unilateral vocal fold paralysis (UVFP) can be characterized by hoarseness and weakness, resulting in a significant impact on patients' activity and participation. Voice therapy provided by a speech-language pathologist is designed to maximize vocal function and improve quality of life. The purpose of this paper is to systematically review literature surrounding the effectiveness of speech-language pathology intervention for the management of UVFP in adults...
December 19, 2016: Journal of Voice: Official Journal of the Voice Foundation
https://www.readbyqxmd.com/read/28003099/long-term-results-of-18-fat-injections-in-unilateral-vocal-fold-paralysis
#9
R Pagano, D Morsomme, S Camby, L Lejeune, C Finck
OBJECTIVE: The purposes of this study were to assess the long-term efficacy of medialization laryngoplasty via injection of autologous fat in patients with unilateral laryngeal paralysis, and to discuss the results based on the volume of fat injected and the size of the initial glottic gap. STUDY DESIGN: This was a retrospective study with clinical reevaluation of 18 patients treated for unilateral laryngeal paralysis at Liège University Hospital between April 1, 2011, and December 1, 2014...
December 19, 2016: Journal of Voice: Official Journal of the Voice Foundation
https://www.readbyqxmd.com/read/27943294/laryngeal-pacing-for-bilateral-vocal-fold-paralysis-voice-and-respiratory-aspects
#10
Andreas H Mueller, Rudolf Hagen, Claus Pototschnig, Gerhard Foerster, Wilma Grossmann, Katrin Baumbusch, Markus Gugatschka, Tadeus Nawka
OBJECTIVE: To evaluate the effects of neurostimulation with the laryngeal pacemaker (LP) system in patients with bilateral vocal fold paralysis (BVFP) in terms of voice quality and respiratory function. STUDY DESIGN: Feasibility study, first-in-human, single-arm, open-label, prospective, multicenter study with group-sequential design and 6-month follow-up period, as described in details in our previous publication. METHODS: Nine symptomatic BVFP subjects were unilaterally implanted with the LP system at three study sites in Germany and Austria...
December 10, 2016: Laryngoscope
https://www.readbyqxmd.com/read/27816357/evaluation-of-vocal-fold-motion-abnormalities-are-we-all-seeing-the-same-thing
#11
Lyndsay L Madden, Clark A Rosen
OBJECTIVES: Flexible laryngoscopy is the principle tool for the evaluation of vocal fold motion. As of yet, no consistent, unified outcome metric has been developed for vocal fold paralysis/immobility research. The goal of this study was to evaluate vocal fold motion assessment (inter- and intra-rater reliability) among general otolaryngologists and fellowship-trained laryngologists. STUDY DESIGN: Prospective video perceptual analysis study. METHODS: Flexible laryngoscopic examinations, with sound, of 15 unique patient cases (20 seconds each) were sent to 10 general otolaryngologists and 10 fellowship-trained laryngologists blinded to clinical history...
January 2017: Journal of Voice: Official Journal of the Voice Foundation
https://www.readbyqxmd.com/read/27743845/hierarchical-classification-and-system-combination-for-automatically-identifying-physiological-and-neuromuscular-laryngeal-pathologies
#12
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
#13
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
https://www.readbyqxmd.com/read/27738634/using-innovative-acoustic-analysis-to-predict-the-postoperative-outcomes-of-unilateral-vocal-fold-paralysis
#14
Yung-An Tsou, Yi-Wen Liu, Wen-Dien Chang, Wei-Chen Chen, Hsiang-Chun Ke, Wen-Yang Lin, Hsing-Rong Yang, Dung-Yun Shie, Ming-Hsui Tsai
Objective. Autologous fat injection laryngoplasty is ineffective for some patients with iatrogenic vocal fold paralysis, and additional laryngeal framework surgery is often required. An acoustically measurable outcome predictor for lipoinjection laryngoplasty would assist phonosurgeons in formulating treatment strategies. Methods. Seventeen thyroid surgery patients with unilateral vocal fold paralysis participated in this study. All subjects underwent lipoinjection laryngoplasty to treat postsurgery vocal hoarseness...
2016: BioMed Research International
https://www.readbyqxmd.com/read/27692725/impact-of-cricothyroid-muscle-contraction-on-vocal-fold-vibration-experimental-study-with-high-speed-videoendoscopy
#15
Camila Cristina Ishikawa, Thais Gonçalves Pinheiro, Adriana Hachiya, Arlindo Neto Montagnoli, Domingos Hiroshi Tsuji
OBJECTIVES: The aim of this study was to evaluate the effects of cricothyroid muscle contraction on vocal fold vibration, as evaluated with high-speed videoendoscopy, and to identify one or more aspects of vocal fold vibration that could be used as an irrefutable indicator of unilateral cricothyroid muscle paralysis. STUDY DESIGN: This was an experimental study employing excised human larynges. METHODS: Twenty freshly excised human larynges were evaluated during artificially produced vibration...
September 28, 2016: Journal of Voice: Official Journal of the Voice Foundation
https://www.readbyqxmd.com/read/27670956/repeat-imaging-in-idiopathic-unilateral-vocal-fold-paralysis-is-it-necessary
#16
Julia E Noel, Caroline C Jeffery, Edward Damrose
OBJECTIVE: Imaging plays a critical role in the evaluation of patients presenting with unilateral vocal fold paresis or paralysis of unknown etiology. In those with idiopathic unilateral vocal fold paralysis (iUVFP), there is no consensus regarding the need or timing of repeat imaging. This study seeks to establish the rate of delayed detection of alternate etiologies for these patients to determine if and when imaging should be repeated. METHODS: Retrospective chart review was conducted identifying patients at our institution with vocal fold movement impairment between 1998 and 2014...
December 2016: Annals of Otology, Rhinology, and Laryngology
https://www.readbyqxmd.com/read/27666943/disease-characteristics-and-electromyographic-findings-of-nonsurgery-related-unilateral-vocal-fold-paralysis
#17
Yu-Cheng Pei, Hsueh-Yu Li, Cheng-Lun Chen, Alice M K Wong, Pei-Chi Huang, Tuan-Jen Fang
OBJECTIVE: The detailed characteristics and prognosis of nonsurgery-related unilateral vocal fold paralysis (NSUVFP) are currently unclear. This study evaluated the extent of laryngeal nerve lesions and the individual characteristics for patients with NSUVFP. STUDY DESIGN: Retrospective, case series. METHODS: Patients with unilateral vocal fold paralysis (UVFP) were evaluated using videolaryngostroboscopy and quantitative laryngeal electromyography...
September 26, 2016: Laryngoscope
https://www.readbyqxmd.com/read/27604559/autologous-fat-injection-therapy-including-a-high-concentration-of-adipose-derived-regenerative-cells-in-a-vocal-fold-paralysis-model-animal-pilot-study
#18
N Nishio, Y Fujimoto, K Suga, Y Iwata, K Toriyama, K Takanari, Y Kamei, T Yamamoto, M Gotoh
OBJECTIVES: To verify the effectiveness and safety of the addition of adipose-derived regenerative cells to autologous fat injection therapy. METHODS: Unilateral vocal fold paralysis models were made by cutting the right recurrent laryngeal nerve in two pigs. At day 30, 0.5 ml adipose-derived regenerative cells mixed with 1 ml autologous fat was injected into the right vocal fold of one pig, with the other receiving 0.5 ml Ringer's solution mixed with 1 ml autologous fat...
October 2016: Journal of Laryngology and Otology
https://www.readbyqxmd.com/read/27601300/cost-effectiveness-of-routine-computed-tomography-in-the-evaluation-of-idiopathic-unilateral-vocal-fold-paralysis
#19
Houmehr Hojjat, Peter F Svider, Adam J Folbe, Syed N Raza, Michael A Carron, Mahdi A Shkoukani, Albert L Merati, Ross M Mayerhoff
OBJECTIVES/HYPOTHESIS: To evaluate the cost-effectiveness of routine computed tomography (CT) in individuals with unilateral vocal fold paralysis (UVFP) STUDY DESIGN: Health Economics Decision Tree Analysis METHODS: A decision tree was constructed to determine the incremental cost-effectiveness ratio (ICER) of CT imaging in UVFP patients. Univariate sensitivity analysis was utilized to calculate what the probability of having an etiology of the paralysis discovered would have to be to make CT with contrast more cost-effective than no imaging...
February 2017: Laryngoscope
https://www.readbyqxmd.com/read/27600559/botulinum-toxin-injection-in-laryngeal-dyspnea
#20
Virginie Woisard, Xuelai Liu, Marie Christine Arné Bes, Marion Simonetta-Moreau
Data, regarding the use of botulinum toxin (BT-A) in laryngeal dyspnea, are scarce, coming from some cases reports in the literature, including Vocal fold paralysis, laryngeal dystonia, vocal cord dysfunction also called paradoxical motion of the vocal fold (PMVF), and post-neuroleptic laryngeal dyskinesia. There is no consensus regarding the muscles and the doses to inject. The aim of this study is to present a retrospective review of patients treated in our ENT Department by BT-A injection in this indication...
February 2017: European Archives of Oto-rhino-laryngology
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