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Historical
Prevalence and Occupation of Patients Presenting With Dysphonia in the United States
Voice disorders are common conditions that may have a significant impact on patient quality of life, yet their prevalence and epidemiology are poorly documented. In this study, we estimated the prevalence, demographics, and occupation of patients with dysphonia.The Anastomoses of the Recurrent Laryngeal Nerve in the Larynx: A Meta-Analysis and Systematic Review
The recurrent laryngeal nerve and its branches form a great variety of anastomoses. These nerve communications can alter the innervation patterns of the laryngeal muscles and can affect both the diagnosis and treatment of paralyzed vocal cords. The aim of this study was to assess the prevalence and anatomical characteristics of the laryngeal nerve connections, and to review their function and clinical significance.Botulinum Toxin-A Dosing Trends for Adductor Spasmodic Dysphonia at a Single Institution Over 10 Years
This study aimed to identify the changes in dosing of botulinum toxin-A for adductor spasmodic dysphonia (ADSD) over a prolonged period.Methods of Fat Tissue Processing for Human Vocal Fold Injection: A Systematic Review
We analyzed different methods used to process autologous fat tissues for vocal fold injection (VFI). VFI is a safe procedure that preserves the folds' original elasticity and vibration properties and rarely triggers foreign-body reactions, but is often a temporary treatment due to fat reabsorption. To avoid it, selecting a technique that provides as many viable implantable adipocytes as possible is mandatory.Laryngeal Cancer, HPV DNA vs E6/E7 mRNA Test: A Systematic Review
The reported range of involvement of human papillomavirus (HPV) in laryngeal squamous cell carcinoma (SCC) is wide because of the methods used to detect HPV.Further Evidence of the Construct Validity of the Transsexual Voice Questionnaire (TVQMtF) Using Principal Components Analysis
The Transsexual Voice Questionnaire (TVQMtF) is a population-specific self-report tool designed to capture the perceptions of male-to-female transsexual women (MtF women) regarding their vocal functioning and the voice-related impact on their everyday life. The aim of this study was to further the psychometric evaluation of the TVQMtF by examining its construct validity and confirming its reliability.Botulinum Toxin Dosing Trends in Spasmodic Dysphonia Over a 20-year Period
The study aims to (1) identify the botulinum toxin (BTX) dosing trend in a cohort of patients who received at least 20 injections for the treatment of adductor spasmodic dysphonia (ADSD), (2) describe two distinct BTX dosing trends in treating ADSD (a “classic” dosing trend that initially decreases before stabilizing, and a “fluctuating” dosing trend), and (3) determine if patients with the “classic” dosing trend differed in age or in dosing intervals from those with the “fluctuating” dosing trend.The Effects of Hormonal Contraception on the Voice: History of Its Evolution in the Literature
Women of reproductive age commonly use hormonal contraceptives, the vocal effects of which have been studied. Otolaryngologists should be aware of this relationship to make recommendations on hormonal contraception as it relates to each patient's voice requirements.Some Consensus has been Reached on the Labeling of Harmonics, Formants, and Resonances
A group of 22 voice professionals engaged in vigorous debate about symbolic notation and definitions in voice acoustics for a period of about 2 years. The group included singing teachers, speech-language pathologists, and voice scientists from the United States, Europe, and Australia.1A Review of Training Opportunities for Singing Voice Rehabilitation Specialists
Training opportunities for singing voice rehabilitation specialists are growing and changing. This is happening despite a lack of agreed-on guidelines or an accredited certification acknowledged by the governing bodies in the fields of speech-language pathology and vocal pedagogy, the American Speech-Language Hearing Association and the National Association of Teachers of Singing, respectively. The roles of the speech-language pathologist, the singing teacher, and the person who bridges this gap, the singing voice rehabilitation specialist, are now becoming better defined and more common among the voice care community.Acquired Glottic Stenosis—The Ongoing Challenge: A Review of Etiology, Pathogenesis, and Surgical Management
To review the etiology and pathogenesis of acquired glottic stenosis, as well as the workup, patient preparation, interventional options, and their changing trends, as described in the literature since the 19th century until the present day.Rater Methodology for Stroboscopy: A Systematic Review
Laryngeal endoscopy with stroboscopy (LES) remains the clinical gold standard for assessing vocal fold function. LES is used to evaluate the efficacy of voice treatments in research studies and clinical practice. LES as a voice treatment outcome tool is only as good as the clinician interpreting the recordings. Research using LES as a treatment outcome measure should be evaluated based on rater methodology and reliability. The purpose of this literature review was to evaluate the rater-related methodology from studies that use stroboscopic findings as voice treatment outcome measures.Mechanical Characterization of Vocal Fold Tissue: A Review Study
Human vocal folds undergo self-sustaining oscillations during phonation. The phonatory functions of the vocal folds depend on their mechanical properties. This article presents a review of various mechanical testing methods and constitutive models that are currently in use for the characterization of mechanical properties of the vocal fold tissue. Special attention is given to tissue deformation under mechanical loading at different length scales. The wide range of elastic modulus values reported in the literature is discussed and justified using a multiscale perspective.Spasmodic Dysphonia: Let's Look at That Again
G. Paul Moore influenced the study of spasmodic dysphonia (SD) with his 1960 publication that examined the neurological, medical, and vocal fold behavior in a group of patients with adductor spasmodic dysphonia (ADSD). This review of advances in the diagnosis and treatment of SD follows a time line of research that can be traced in part to the early work of Moore et al. This article reviews the research in ADSD over the past 50 plus years. The capstone events that brought SD to its present day level of management by laryngologists and speech-language pathologists are highlighted.The Evolution of Laryngeal Reinnervation, the Current State of Science and Thoughts for Future Treatments
The treatment of unilateral vocal fold palsy (UVFP) or bilateral vocal fold palsy (BVFP) has been the subject of debate and experiment for 150 years. To date, dozens of different surgical methods have been described to reinnervate this most complex of organs, the larynx. As yet, there is no consensus on the most functionally effective method of reinnervation. However, it is a rapidly expanding area of research and remains an area of controversy. Indications for reinnervation for both UVFP and BVFP are still evolving and our understanding of the neuromuscular supply to the larynx continues to expand.Issues in Forensic Voice
The following article provides a general review of an area that can be referred to as Forensic Voice. Its goals will be outlined and that discussion will be followed by a description of its major elements. Considered are (1) the processing and analysis of spoken utterances, (2) distorted speech, (3) enhancement of speech intelligibility (re: surveillance and other recordings), (4) transcripts, (5) authentication of recordings, (6) speaker identification, and (7) the detection of deception, intoxication, and emotions in speech.New Concepts in Vocal Fold Imaging: A Review
To review new imaging technology potentially useful in the clinical practice of laryngology.Vocal Indices of Stress: A Review
Identification of stress patterns in the voice has multiple potential applications. The objective was to review literature pertaining to the effects of various forms of stress upon the healthy voice.KTP 532 nm Laser for Laryngeal Lesions. A Systematic Review
To evaluate the effectiveness and safety of the 532 nm potassium titanyl phosphate (KTP) laser for vocal fold surgery.Viscosity of Materials for Laryngeal Injection: A Review of Current Knowledge and Clinical Implications
Over the past several decades, researchers have sought the ideal substances for use in injection laryngoplasty. This search has inspired several basic science studies centering on the viscoelastic properties of popularly used injectables as well as of experimental substances. Unfortunately, these studies have used various techniques and different units for measuring viscosity. For clinical purposes, there has been a need for a concise compilation of these data, converted into consistent units, to permit easy comparison of the reported viscosities of various substances.Regenerative Medicine of the Larynx. Where are we Today? A Review
Tissue engineering is a multidimensional process combining cells, scaffold matrices, and chemical signals to produce a structure similar to a target tissue. These techniques have opened a completely new field in diagnosis and therapy in numerous fields, including that of laryngology. Laryngeal tissue engineering has emerged in the last decade, although clinical applications are rare. The reasons therefore are numerous including ethical reasons, as well as the extremely complex anatomical structure of the vocal fold.Deep Brain Stimulation for Treatment of Voice Disorders
Vocal tremor is a common, troublesome disorder that is difficult to treat. Efficacy of deep brain stimulation (DBS) was reported more than a decade ago. Most laryngologists are not familiar with the technique or its potential. This review was undertaken to assemble relevant literature written over the past decade and assess the clinical implications of that literature.On Pubescent Voice Change in Males
This review of adolescent voice change (AVC) in males is introduced by a brief historical overview of the area. That effort is followed by a summarization of those core studies which describe the AVC process in the normal boy. Although no new experiments are presented, a number of related investigations are organized into a cohesive base—one that permits development of an AVC model The model, then, can be employed to establish a reasonable description of the process by providing information about its initiation, duration, and completion.Quality of the Voice Literature: What is There and What is Missing
The purpose of this article is to describe both the strengths and weaknesses of the medical voice literature.Levels of Evidence in the Voice Literature
The purpose of this study was to evaluate the levels of evidence in the voice literature.
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