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Vocal fold

Rita R Patel, Karen Forrest, Drew Hedges
OBJECTIVE: This study aimed to investigate the relationship between (1) onset of the acoustic signal (X1a) and prephonatory phases associated with oscillatory onset and (2) offset of the acoustic signal (X2a) with the postphonatory events associated with oscillatory offset across vocally healthy adults. SUBJECTS AND METHODS: High-speed videoendoscopy was captured simultaneously with the acoustic signal during repeated production of /hi.hi.hi/ at typical pitch and loudness from 56 vocally healthy adults (aged 20-42 years; 21 men, 35 women)...
October 18, 2016: Journal of Voice: Official Journal of the Voice Foundation
Dong Wook Kim, Eun Ji Kim, Eun Na Kim, Myung Whun Sung, Tack-Kyun Kwon, Yong Woo Cho, Seong Keun Kwon
Vocal fold paralysis results from various etiologies and can induce voice changes, swallowing complications, and issues with aspiration. Vocal fold paralysis is typically managed using injection laryngoplasty with fat or synthetic polymers. Injection with autologous fat has shown excellent biocompatibility. However, it has several disadvantages such as unpredictable resorption rate, morbidities associated with liposuction procedure which has to be done in operating room under general anesthesia. Human adipose-derived extracellular matrix (ECM) grafts have been reported to form new adipose tissue and have greater biostability than autologous fat graft...
2016: PloS One
Paulina Krasnodębska, Agata Szkiełkowska, Beata Miaśkiewicz, Henryk Skarżyński
OBJECTIVES: There is a necessity to include objective methods to the study protocol of voice. Such procedure will help not only in diagnosing and monitoring the course of treatment, but also in comparing the results of studies between research centers. METHODS: Vocal fold mucosal wave characteristics of 70 healthy people were made using videostrobokymographic open quotient (VSKOQ) and electroglottographic quasi-open quotient (EGGQOQ). RESULTS: Statistically significant differences were achieved regarding gender for the averaged values of VSKOQ as well as for values calculated from the posterior part of the vocal folds...
October 17, 2016: Journal of Voice: Official Journal of the Voice Foundation
David R R Smith
Whispered vowels, produced with no vocal fold vibration, lack the periodic temporal fine structure which in voiced vowels underlies the perceptual attribute of pitch (a salient auditory cue to speaker sex). Voiced vowels possess no temporal fine structure at very short durations (below two glottal cycles). The prediction was that speaker-sex discrimination performance for whispered and voiced vowels would be similar for very short durations but, as stimulus duration increases, voiced vowel performance would improve relative to whispered vowel performance as pitch information becomes available...
September 2016: I-Perception
Matthias Echternach, Fabian Burk, Michael Burdumy, Christian T Herbst, Marie Köberlein, Michael Döllinger, Bernhard Richter
OBJECTIVES/HYPOTHESIS: In professional classical singing, an even voice quality throughout the entire singing voice range is essential. Transitions between vocal registers (passaggio) are the technically most challenging aspects in classical singing. It is hypothesized that they are most affected by vocal fold mass lesions (VFML). STUDY DESIGN: Cohort study. METHODS: In this study, the effect of VFML on vocal fold vibration in the passaggio regions was analyzed in four female and three male singers suffering from organic dysphonia...
October 18, 2016: Laryngoscope
Hagit Shoffel-Havakuk, Yonatan Lahav, Barak Meidan, Yaara Haimovich, Meir Warman, Moshe Hain, Yaniv Hamzany, Alexander Brodsky, Tali Landau-Zemer, Doron Halperin
OBJECTIVES/HYPOTHESIS: The primary suspicion for glottic malignancy during office laryngoendoscopy is based on lesion appearance. Previous studies investigating laryngeal use of narrow band imaging (NBI) are mostly descriptive. The additive value of NBI relative to white light (WL) requires further investigation. STUDY DESIGN: Observational matched study. METHODS: NBI was compared with WL images of 45 vocal fold lesions suspected for malignancy (21 carcinoma, 22 dysplasia, two benign)...
October 18, 2016: Laryngoscope
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
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
Alberto M Saibene, Elena Zambrelli, Carlotta Pipolo, Alberto Maccari, Giovanni Felisati, Elena Felisati, Francesca Furia, Aglaia Vignoli, Maria Paola Canevini, Enrico Alfonsi
Vagus nerve stimulation (VNS) is a useful tool for drug-resistant epilepsy, but it induces known laryngeal side effects, with a significant role on patients' quality of life. VNS patients may show persistent left vocal fold (LVF) palsy at rest and/or recurrent LVF adduction during stimulation. This study aims at electromyographically evaluating laryngeal muscles abnormalities in VNS patients. We compared endoscopic laryngeal evaluation data in six VNS patients with laryngeal muscle electromyography (LMEMG) carried out on the thyroarytenoid, cricothyroid, posterior cricoarytenoid, and cricopharyngeal muscles...
October 13, 2016: European Archives of Oto-rhino-laryngology
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
Bożena Kosztyła-Hojna, Diana Moskal, Dawid Falkowski, Anna Łobaczuk-Sitnik, Anna Kraszewska, Małgorzata Skorupa, Jacek Kita, Anna Kuryliszyn-Moskal
: Technique of high-speed digital imaging (HSDI) is unique technique, allowing for assessment of real vocal fold vibrations. AIM: The aim of the study is to present the usefulness of HSDI in the diagnosis of clinical type of dysphonia. MATERIALS AND METHODS: The study group was diagnosed at the Department of Clinical Phonoaudiology and Logopedics at the Medical University of Białystok and treated at the Phoniatric Clinic in years 2012-2015...
July 29, 2016: Polski Merkuriusz Lekarski: Organ Polskiego Towarzystwa Lekarskiego
Bożena Kosztyła-Hojna, Anna Kraszewska, Anna Łobaczuk-Sitnik, Diana Moskal, Dawid Falkowski, Jolanta Biszewska, Greta Berger
: Paralytic dysphonia is the most serious neurogenic pathology of voice quality. An important issue is to identify methods which support routine treatment. AIM: The aim of the study is to assess voice quality after electrostimulation (ES) therapy in patients with paralytic dysphonia. MATERIALS AND METHODS: The group consisted of 40 patients diagnosed at the Department of Clinical Phonoaudiology and Logopedics and then treated at the Phoniatric Outpatient Clinic of the Medical University of Bialystok, Poland in years 2013-2015...
July 29, 2016: Polski Merkuriusz Lekarski: Organ Polskiego Towarzystwa Lekarskiego
V D'Orazi, A Panunzi, E Di Lorenzo, Al Ortensi, M Cialini, S Anichini, A Ortensi
AIM: The use of microsurgical technique and loupes magnification as a support to traditional surgery can help surgical performance and prevent complications in thyroid surgery. PATIENTS AND METHODS: Between January 2004 and December 2014, 782 patients with thyroid diseases were operated by our team with microsurgical technique and loupes magnification 4.5x. All patients had pre and postoperative vocal cords assessment and calcemia and the collected data were analysed...
May 2016: Il Giornale di Chirurgia
Michael A Rieger, Joseph D Dougherty
Mice produce ultrasonic vocalizations (USV) in multiple communicative contexts, including adult social interaction (e.g., male to female courtship), as well as pup calls when separated from the dam. Assessment of pup USV has been widely applied in models of social and communicative disorders, dozens of which have shown alterations to this conserved behavior. However, features such as call production rate can vary substantially even within experimental groups and it is unclear to what extent aspects of USV represent stable trait-like influences or are vulnerable to an animal's state...
2016: Frontiers in Behavioral Neuroscience
Julia A Clarke, Sankar Chatterjee, Zhiheng Li, Tobias Riede, Federico Agnolin, Franz Goller, Marcelo P Isasi, Daniel R Martinioni, Francisco J Mussel, Fernando E Novas
From complex songs to simple honks, birds produce sounds using a unique vocal organ called the syrinx. Located close to the heart at the tracheobronchial junction, vocal folds or membranes attached to modified mineralized rings vibrate to produce sound. Syringeal components were not thought to commonly enter the fossil record, and the few reported fossilized parts of the syrinx are geologically young (from the Pleistocene and Holocene (approximately 2.5 million years ago to the present)). The only known older syrinx is an Eocene specimen that was not described or illustrated...
October 12, 2016: Nature
Anne Hseu, Mykayla Sandler, Dawn Ericson, Nohamin Ayele, Kosuke Kawai, Roger Nuss
INTRODUCTION: Although dyspnea with exercise in the pediatric population can be multifactorial, the diagnosis of paradoxical vocal fold motion disorder (PVFMD) in this group is not well characterized. The objective of this study is to review the multiple causes of dyspnea with exercise in children, including the prevalence of PVFMD within this study population. METHODS: A retrospective review was conducted of patients seen at a tertiary pediatric hospital for exercise-induced dyspnea suspected to be related to PVFMD between January 2007 and July 2015...
November 2016: International Journal of Pediatric Otorhinolaryngology
Toshihiko Iwahashi, Makoto Ogawa, Kiyohito Hosokawa, Chieri Kato, Hidenori Inohara
OBJECTIVES: This study aimed to investigate whether humming affects the adductive motion of the vocal folds and transient glottal closure in the prephonatory adjustment phase of vocal onset using high-speed digital imaging (HSDI) and a motion analysis software program. METHODS: Twenty normal healthy adults without any vocal abnormalities were enrolled. While a transnasal flexible fiberscope connected to a high-speed camera was inserted, each participant was asked to perform three phonatory tasks-natural /e:/ phonation, loud /e:/ phonation, and humming /m:/ phonation-and laryngeal HSDI movies (4000 frame/s) were recorded...
October 7, 2016: Journal of Voice: Official Journal of the Voice Foundation
Dorian Cazau, Olivier Adam, Thierry Aubin, Jeffrey T Laitman, Joy S Reidenberg
Although mammalian vocalizations are predominantly harmonically structured, they can exhibit an acoustic complexity with nonlinear vocal sounds, including deterministic chaos and frequency jumps. Such sounds are normative events in mammalian vocalizations, and can be directly traceable to the nonlinear nature of vocal-fold dynamics underlying typical mammalian sound production. In this study, we give qualitative descriptions and quantitative analyses of nonlinearities in the song repertoire of humpback whales from the Ste Marie channel (Madagascar) to provide more insight into the potential communication functions and underlying production mechanisms of these features...
October 10, 2016: Scientific Reports
A Focquet, Y Péréon, S Ségura, C Ferron, O Malard, F Espitalier
OBJECTIVES: To study the diagnostic and prognostic contribution of laryngeal electromyography in unilateral vocal-fold immobility in adults. MATERIAL AND METHODS: A retrospective study included patients with unilateral vocal-fold immobility undergoing laryngeal electromyography between 2007 and 2015. Neurogenic, normal or myogenic findings were compared to the clinical aspect. Prognosis for recovery was assessed from motor unit potentials on laryngeal electromyography, and compared to subsequent progress on laryngoscopy...
October 5, 2016: European Annals of Otorhinolaryngology, Head and Neck Diseases
Maria E Powell, Dimitar D Deliyski, Robert E Hillman, Steven M Zeitels, James A Burns, Daryush D Mehta
Purpose: Videostroboscopy (VS) uses an indirect physiological signal to predict the phase of the vocal fold vibratory cycle for sampling. Simulated stroboscopy (SS) extracts the phase of the glottal cycle directly from the changing glottal area in the high-speed videoendoscopy (HSV) image sequence. The purpose of this study is to determine the reliability of SS relative to VS for clinical assessment of vocal fold vibratory function in patients with mass lesions. Methods: VS and SS recordings were obtained from 28 patients with vocal fold mass lesions before and after phonomicrosurgery and 17 controls who were vocally healthy...
October 7, 2016: American Journal of Speech-language Pathology
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