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Vocal fold

J M Fan, S X Wen, B Q Wang, R Han, Y Y Yang, Q Q Zhu
The clinical manifestations were pharyngalgia anddysphagia. Physical examination found that the size of a mobilizable and hard lymph node in the area of the right neck Ⅱ was about 2.0 cm×2.0 cm. Ultrasound examination demonstrated abnormal lymphadenopathy in bilateral neck which was considered metastatic cancer. Neck CT showed occupation of the hypopharynx, thickening bilateral aryepiglottic folds and false vocal cords, and enlargement lymph node in the bilateral neck Ⅱ area. Upper gastrointestinal radiography: The mucosa from the lower border of right pear-shaped fossa to the entrance of the esophagus was disrupted, and the partial lumen was narrowed...
June 5, 2018: Journal of Clinical Otorhinolaryngology, Head, and Neck Surgery
Vaninder K Dhillon, Eleni Rettig, Salem I Noureldine, Dane J Genther, Ahmed Hassoon, Mai G Al Khadem, Ozan B Ozgursoy, Ralph P Tufano, Charles W Cummings
BACKGROUND: Vocal fold motion impairment (VFMI) is a well-recognized complication of thyroid and parathyroid surgery. Preoperative counseling requires a thorough understanding of the incidence, risk factors, and value of early diagnosis of postoperative VFMI. Our objective is to describe the incidence of and risk factors for VFMI for a single high-volume academic surgeon, and to assess the utility of immediate postoperative fiberoptic laryngoscopy (FOL) in early diagnosis of VFMI. METHODS: Retrospective cohort study of patients undergoing primary thyroid and parathyroid procedures by a single high-volume surgeon at an academic tertiary care center...
June 13, 2018: International Journal of Surgery
Luis F Tintinago, William Victoria, Estephania Candelo, Juan Camilo Diaz, Juan Carlos Arce, Luis Miguel Aristizabal, Claudia Sanz, Maria Claudia Montes, Maria A Velez-Esquivia
INTRODUCTION: Bilateral vocal folds' immobility is a challenge in laryngology. Multiple procedures have been proposed to improve breathing by statically enlarging the glottal airway, what also results in loss of voice and aspiration. We proposed a technique to enlarge the posterior glottis by rotating the arytenoids on its axis, imitating the function of the posterior cricoarytenoid muscle, with the objective of evaluating the results regarding decannulation, voice quality, and bronchoaspiration...
June 5, 2018: American Journal of Otolaryngology
Ilya A Volodin, Vera A Matrosova, Roland Frey, Julia D Kozhevnikova, Inna L Isaeva, Elena V Volodina
Non-hibernating pikas collect winter food reserves and store them in hay piles. Individualization of alarm calls might allow discrimination between colony members and conspecifics trying to steal food items from a colony pile. We investigated vocal posture, vocal tract length, and individual acoustic variation of alarm calls, emitted by wild-living Altai pikas Ochotona alpina toward a researcher. Recording started when a pika started calling and lasted as long as possible. The alarm call series of 442 individual callers from different colonies consisted of discrete short (0...
June 11, 2018: Die Naturwissenschaften
Sarah K Rapoport, Jayme Meiner, Nazaneen Grant
The impact of aging is as inevitable in the larynx as on all biologic systems. The muscles of larynx have the potential to atrophy, the elastin fibers of lamina propria thin with age, and mucous production diminishes. As a result, vocal folds fail to approximate appropriately and the stress on once-robust vocal folds increases. These changes present as poor voice quality, vocal tension, tremor, and altered fundamental frequency. Rather than consider presbyphonia as an immutable diagnosis, we must see it as an opportunity to elevate our standard of care and set goals to work for therapeutic improvement of voice quality...
June 7, 2018: Otolaryngologic Clinics of North America
Jaromír Horáček, Vojtěch Radolf, Anne-Maria Laukkanen
OBJECTIVES: Phonation through a tube in water is used in voice therapy. This study investigates whether this exercise may increase mechanical loading on the vocal folds. STUDY DESIGN: This is an experimental modeling study. METHODS: A model with three-layer silicone vocal fold replica and a plexiglass, MK Plexi, Prague vocal tract set for the articulation of vowel [u:] was used. Impact stress (IS) was measured in three conditions: for [u:] (1) without a tube, (2) with a silicon Lax Vox tube (35 cm in length, 1 cm in inner diameter) immersed 2 cm in water, and (3) with the tube immersed 10 cm in water...
June 5, 2018: Journal of Voice: Official Journal of the Voice Foundation
Abdul-Latif Hamdan, Elie Khalifee, Hussein Jaffal, Anthony Ghanem, Samer Abou Rizk, Aya El Hage
OBJECTIVES: To examine the prevalence of dysphagia in patients presenting with dysphonia and diagnosed with non-neoplastic vocal fold pathology. METHODS: A total of 45 patients presenting with dysphonia and diagnosed with non-neoplastic vocal fold pathology and a control group matched according to age and gender were included. Patients with recent history of respiratory tract infection, laryngeal surgery or manipulation, neurologic disorders, head and neck tumors, or history of chemotherapy/radiotherapy were excluded...
June 5, 2018: Journal of Voice: Official Journal of the Voice Foundation
Jeppe H Rasmussen, Christian T Herbst, Coen P H Elemans
The complex and elaborate vocalizations uttered by many of the 10,000 extant bird species are considered a major driver in their evolutionary success, warranting study of the underlying mechanisms of vocal production. Additionally, birdsong has developed into a highly productive model system for vocal imitation learning and motor control, where, in contrast to humans, we have experimental access to the entire neuromechanical control loop. In human voice production, complex laryngeal geometry, vocal fold tissue properties, airflow and laryngeal musculature all interact to ultimately control vocal fold kinematics...
June 7, 2018: Journal of Experimental Biology
Joy W Lee, Tunn Ren Tay, Paul Paddle, Amanda L Richards, Lisa Pointon, Miriam Voortman, Michael J Abramson, Ryan Hoy, Mark Hew
BACKGROUND: Inducible laryngeal obstruction, an induced, inappropriate narrowing of the larynx, leading to symptomatic upper airway obstruction, can coexist with asthma. Accurate classification has been challenging because of overlapping symptoms and the absence of sensitive diagnostic criteria for either condition. OBJECTIVE: To evaluate patients with concomitant clinical suspicion for inducible laryngeal obstruction and asthma. We used a multidisciplinary protocol incorporating objective diagnostic criteria to determine whether asthma, inducible laryngeal obstruction, both, or neither diagnosis was present...
June 5, 2018: Clinical and Experimental Allergy: Journal of the British Society for Allergy and Clinical Immunology
D Sarran, A Caron, J P Billet
Vocal cord granulomas are rarely observed in brachycephalic breeds but often reported in humans as contact granulomas. Six French bulldogs were included in this retrospective descriptive study. Endoscopic laryngeal examinations were performed on all dogs under general anaesthesia. Vocal cord lesions were exclusively unilateral, exophytic, approximately 3-mm wide ulcerated mucosal nodules, arising from the vocal cord. Histopathological examination mainly revealed chronic inflammatory changes on the laryngeal epithelium which were consistent with laryngeal granulomas described in humans, except for the location: vocal cord in dogs versus vocal process in humans...
June 5, 2018: Journal of Small Animal Practice
François Gorostidi, Pauline Vinckenbosch, Karma Lambercy, Kishore Sandu
PURPOSE: With adequate indication and meticulous execution, endoscopic procedures can efficiently treat a subset of adult and pediatric benign laryngotracheal stenosis and obstructions, but these procedures are precise and very demanding. The difference between a successful and a failed surgery, with potentially debilitating side effects, resides in small details. The learning curve is long and very few centers worldwide have a sufficient case load making adequate training difficult. While indications and concepts of endoscopic procedures can be learned in books and by observing trained colleagues, the dexterity and the precise realization need to be practiced, ideally not initially on patients...
June 4, 2018: European Archives of Oto-rhino-laryngology
Claudio Andreetti, Cecilia Menna, Antonio D'Andrilli, Mohsen Ibrahim, Federico Venuta, Mario Santini, Erino Angelo Rendina, Alfonso Fiorelli
Several techniques have been previously proposed to fix silicone stents for subglottic tracheal stenosis. However, they require special tools or cumbersome manoeuvres. The proposed modified procedure offers a potential alternative fixing technique using absorbable suture buried subcutaneously and not requiring special devices. This procedure was successfully performed in 27 patients with inoperable complex subglottic stenosis. The mean distance from vocal folds, the mean length and mean diameter of stenosis were 17 ± 2 mm, 20 ± 2...
June 2, 2018: Interactive Cardiovascular and Thoracic Surgery
Patrick Schlegel, Michael Stingl, Melda Kunduk, Stefan Kniesburges, Christopher Bohr, Michael Döllinger
OBJECTIVE: The phonatory process is often judged during sustained phonation by analyzing the acoustic voice signal and the vocal fold vibrations. Many formulas and parameters have been suggested for qualifying the characteristics of the acoustic signal and the vocal fold vibrations during sustained phonation. These parameters are directly computed from the acoustic signal and the endoscopic glottal area waveform (GAW). The GAW is calculated from laryngeal high-speed videoendoscopy (HSV) recordings and describes the increase and decrease of the glottal area during the phonation process, that is, the opening and closing of the two oscillating vocal folds over time...
May 31, 2018: Journal of Voice: Official Journal of the Voice Foundation
Rubens de Brito, Juan Carlos Cisneros Lesser, Paula Tardim Lopes, Ricardo Ferreira Bento
PURPOSE: To describe the neurological results obtained in six patients with large Fisch C glomus jugulare tumors (GJT) in which a less aggressive, nerve-preserving surgical strategy was used to reduce surgical morbidity. METHODS: Prospective study of six patients with Fisch C GJT who underwent surgery in a tertiary care referral center from February 2015 to August 2017 with an average follow-up of 18 months. The intervention is the surgical technique used and the main outcome measures are recurrence and the functional preservation of the facial and lower cranial nerves...
June 1, 2018: European Archives of Oto-rhino-laryngology
Bowen Jing, Zhengtong Ge, Liang Wu, Supin Wang, Mingxi Wan
In order to investigate the vibration pattern, especially the vibrational phase of tissue beneath the vocal fold mucosa, an imaging method called electroglottogram-triggered ultrasonography is proposed. The ultrasonic images of the vocal fold vibration are obtained in the coronal plane from five adult subjects during phonation. The velocity of the vocal fold tissue beneath the mucosal surface is obtained by using a motion estimation method. The results show that the vibration phase difference between tissues at different locations beneath the vocal fold mucosa results in a mechanical wave traveling upward at a speed of 720 to 1826 mm/s...
May 2018: Journal of the Acoustical Society of America
Noel Hanna, John Smith, Joe Wolfe
Experimental determinations of the acoustic properties of the subglottal airway, from the trachea below the larynx to the lungs, may provide useful information for detecting airway pathologies and aid in the understanding of vocal fold auto-oscillation. Here, minimally invasive, high precision impedance measurements are made through the lips (7 men, 3 women) over the range 14-4200 Hz during inspiration, expiration, and with a closed glottis. Closed glottis measurements show the expected resonances and anti-resonances of the supraglottal vocal tract...
May 2018: Journal of the Acoustical Society of America
Jelena Todic, Valérie Schweizer, Igor Leuchter
OBJECTIVE: Bamboo nodes are vocal fold lesions, mostly associated with autoimmune diseases. PATIENTS AND METHODS: This is a retrospective clinical study including 10 patients with bamboo nodes. Data were collected regarding associated autoimmune disorder and type of treatment. A systematic review of the literature was conducted. RESULTS: All patients were women, with hoarseness as the most frequent symptom. There was in most cases an associated autoimmune disease: 3 patients with systemic lupus erythematosus; 3 with rheumatoid arthritis; 1 with Sjögren syndrome; 1 with Hashimoto disease; and 1 with mixed connective tissue disease...
May 30, 2018: Folia Phoniatrica et Logopaedica
S A R Nouraei, E B Dorman, D E Vokes
Laryngotracheal stenosis secondary to Bilateral Vocal Fold Mobility Impairment (BVFMI) is a challenging condition to treat. The glottic aperture accounts for 25% of the respiratory resistance 1 and BVFMI prevents its breath-by-breath regulation, causing severe airway compromise. Moreover, since the larynx is also the organ of phonation and its reflexive closure during swallowing is the principal airway protective mechanism, improving airway may worsen dysphonia, dysphagia, and aspiration. This article is protected by copyright...
May 29, 2018: Clinical Otolaryngology
Katherine Hanlon, R Paul Boesch, Ian Jacobs
Subglottic stenosis refers to narrowing of the airway diameter below the vocal folds and may be congenital or acquired. Typical signs and symptoms range from recurrent croup and exertional stridor to complete airflow obstruction requiring tracheotomy. Management of moderate and severe subglottic stenosis often requires intricate surgical techniques. To optimize the success of these surgeries, a thorough assessment of the child's airway, lungs, reflux, and swallow needs to be evaluated. In order to provide concerted and coordinated care between typically otolaryngology (ENT), pulmonary, gastroenterology (GI), speech, swallow and language pathologists (SLP), "aerodigestive" teams have been developed and increasing in prevalence at children's medical hospitals...
April 2018: Current Problems in Pediatric and Adolescent Health Care
Brianna K Crawley, Salem Dehom, Cedric Thiel, Jin Yang, Andrea Cragoe, Iman Mousselli, Priya Krishna, Thomas Murry
Importance: An aging population experiences an increase in age-related problems, such as presbyphonia. The causes of pathologic presbyphonia are incompletely understood. Objective: To determine what distinguishes pathologic presbyphonia from presbylaryngis. Design, Setting, and Participants: This was a cohort study at an outpatient otolaryngology subspecialty clinic of a tertiary academic referral center. Participants were consecutive consenting adults older than 74 years without laryngeal pathologic abnormalities who visited the clinic as participants or companions...
May 17, 2018: JAMA Otolaryngology—Head & Neck Surgery
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