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Vocal tremor

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https://www.readbyqxmd.com/read/28779989/biomechanical-description-of-phonation-in-children-affected-by-williams-syndrome
#1
Irene Hidalgo de la Guía, Pedro Gómez Vilda, Elena Garayzábal Heinze
The voice of persons with Williams syndrome (WS) is described as hoarse with a deep and unstable fundamental frequency (f0). These observations may be justified by the deficit of elastin due to a haplo-insufficiency in the ELN gene characteristic of the syndrome. In view of the possible relationship between elastin deficit and dysphonia, a study of the dynamic function of WS phonation was conducted by means of biomechanical analysis. In order to assess the presence of dysphonic symptoms and their degree of severity, the biomechanical description of WS phonation has been evaluated in terms of dynamic mass and viscoelasticity estimates...
August 2, 2017: Journal of Voice: Official Journal of the Voice Foundation
https://www.readbyqxmd.com/read/28576552/poisoning-in-goats-by-the-monofluoracetate-containing-plant-palicourea-aeneofusca-rubiaceae
#2
Temístocles Soares de Oliveira Neto, Franklin Riet-Correa, Stephen T Lee, Daniel Cook, Francisca Maria Sousa Barbosa, José Ferreira da Silva Neto, Sara Vilar Dantas Simões, Ricardo Barbosa Lucena
The epidemiological, clinical and pathological aspects of a spontaneous outbreak of Palicourea aeneofusca poisoning in goats are reported. The main clinical signs were motor incoordination, generalized muscle tremors, broad-based posture, tachypnea, tachycardia, vocalization and respiratory distress. Two goats died 5 and 20 min after the observation of the first clinical signs. Another that was found recumbent died 80 h later. One goat with mild clinical signs recovered. Congestion and hemorrhages were observed macroscopically and histologically in most organs...
May 31, 2017: Toxicon: Official Journal of the International Society on Toxinology
https://www.readbyqxmd.com/read/28304188/the-effect-of-unilateral-thalamic-deep-brain-stimulation-on-the-vocal-dysfunction-in-a-patient-with-spasmodic-dysphonia-interrogating-cerebellar-and-pallidal-neural-circuits
#3
Anujan Poologaindran, Zurab Ivanishvili, Murray D Morrison, Linda A Rammage, Mini K Sandhu, Nancy E Polyhronopoulos, Christopher R Honey
Spasmodic dysphonia (SD) is a neurological disorder of the voice where a patient's ability to speak is compromised due to involuntary contractions of the intrinsic laryngeal muscles. Since the 1980s, SD has been treated with botulinum toxin A (BTX) injections into the throat. This therapy is limited by the delayed-onset of benefits, wearing-off effects, and repeated injections required every 3 months. In a patient with essential tremor (ET) and coincident SD, the authors set out to quantify the effects of thalamic deep brain stimulation (DBS) on vocal function while investigating the underlying motor thalamic circuitry...
March 17, 2017: Journal of Neurosurgery
https://www.readbyqxmd.com/read/28229063/childhood-laryngeal-dystonia-following-bilateral-globus-pallidus-abnormality-a-case-study-and-review-of-literature
#4
Mohammad Javad Saeedi Borujeni, Ebrahim Esfandiary, Mostafa Almasi-Dooghaee
INTRODUCTION: Dystonia is a disorder of movement caused by various etiologies. Laryngeal dystonia is caused by the spasm of laryngeal muscles. It is a disorder caused by vocal fold movement in which excessive adduction or abduction of the vocal folds occurs during speech. The pathophysiology of this type of dystonia is not fully known. Some researchers have suggested that basal ganglia structures and their connections with cortical areas have been involved in the pathogenesis of dystonia...
January 2017: Iranian Journal of Otorhinolaryngology
https://www.readbyqxmd.com/read/27919237/a-novel-ano3-variant-identified-in-a-53-year-old-woman-presenting-with-hyperkinetic-dysarthria-blepharospasm-hyperkinesias-and-complex-motor%C3%A2-tics
#5
Patrick R Blackburn, Michael T Zimmermann, Jennifer M Gass, Kimberly G Harris, Margot A Cousin, Nicole J Boczek, Owen A Ross, Eric W Klee, Paul W Brazis, Jay A Van Gerpen, Paldeep S Atwal
BACKGROUND: Cervical dystonias have a variable presentation and underlying etiology, but collectively represent the most common form of focal dystonia. There are a number of known genetic forms of dystonia (DYT1-27); however the heterogeneity of disease presentation does not always make it easy to categorize the disease by phenotype-genotype comparison. CASE PRESENTATION: In this report, we describe a 53-year-old female who presented initially with hand tremor following a total hip arthroplasty...
December 5, 2016: BMC Medical Genetics
https://www.readbyqxmd.com/read/27908094/the-effects-of-physiological-adjustments-on-the-perceptual-and-acoustical-characteristics-of-vibrato-as-a-model-of-vocal-tremor
#6
Rosemary A Lester-Smith, Brad H Story
The purpose of this study was to investigate the effects of physiological adjustments on listeners' perception of the magnitude of modulation of voice and to determine the characteristics of the acoustical modulations that explained listeners' judgments. This research was carried out using singers producing vibrato as a model of vocal tremor. Twenty healthy adults participated in a perceptual study involving pair-comparisons of the magnitude of "shakiness" with singers' samples, which differed by fundamental frequency, vocal quality, and vowel...
November 2016: Journal of the Acoustical Society of America
https://www.readbyqxmd.com/read/27866691/vocal-parameters-and-self-perception-in-individuals-with-adductor-spasmodic-dysphonia
#7
Gleidy Vannesa E Rojas, Hilton Ricz, Vitor Tumas, Guilherme R Rodrigues, Patrícia Toscano, Lílian Aguiar-Ricz
OBJECTIVE: The study aimed to compare and correlate perceptual-auditory analysis of vocal parameters and self-perception in individuals with adductor spasmodic dysphonia before and after the application of botulinum toxin. STUDY DESIGN: This is a prospective cohort study. METHODS: Sixteen individuals with a diagnosis of adductor spasmodic dysphonia were submitted to the application of botulinum toxin in the thyroarytenoid muscle, to the recording of a voice signal, and to the Voice Handicap Index (VHI) questionnaire before the application and at two time points after application...
November 17, 2016: Journal of Voice: Official Journal of the Voice Foundation
https://www.readbyqxmd.com/read/27843470/childhood-neurogenic-stuttering-due-to-bilateral-congenital-abnormality-in-globus-pallidus-a-case-report-and-review-of-the-literature
#8
Mohammad Javad Saeedi, Ebrahim Esfandiary, Mostafa Almasi Dooghaee
Objective The basal ganglia are a group of structures that act as a cohesive functional unit. They are situated at the base of the forebrain and are strongly connected with the cerebral cortex and thalamus. Some speech disorders such as stuttering can resulted from disturbances in the circuits between the basal ganglia and the language motor area of the cerebral cortex. Stuttering consists of blocks, repetitive, prolongation or cessation of speech. We present a 7.5 -year-old male child with bilateral basal ganglia lesion in globus pallidus with unclear reason...
2016: Iranian Journal of Child Neurology
https://www.readbyqxmd.com/read/27735866/vocal-tremor-novel-therapeutic-target-for-deep-brain-stimulation
#9
Vinod K Ravikumar, Allen L Ho, Jonathon J Parker, Elizabeth Erickson-DiRenzo, Casey H Halpern
Tremulous voice is characteristically associated with essential tremor, and is referred to as essential vocal tremor (EVT). Current estimates suggest that up to 40% of individuals diagnosed with essential tremor also present with EVT, which is associated with an impaired quality of life. Traditional EVT treatments have demonstrated limited success in long-term management of symptoms. However, voice tremor has been noted to decrease in patients receiving deep brain stimulation (DBS) with the targeting of thalamic nuclei...
October 10, 2016: Brain Sciences
https://www.readbyqxmd.com/read/27633917/gender-differences-in-onabotulinum-toxin-a-dosing-for-adductor-spasmodic-dysphonia
#10
Michael Z Lerner, Benjamin A Lerner, Amit A Patel, Andrew Blitzer
OBJECTIVES/HYPOTHESIS: The objective of this study was to determine the influence of gender on onabotulinum toxin A dosing for the treatment of adductor spasmodic dysphonia symptoms. STUDY DESIGN: Retrospective review. METHODS: A chart review of the senior author's database of botulinum toxin injections was performed. Patients diagnosed with adductor spasmodic dysphonia who received onabotulinum toxin A (BoNTA) injections to the thyroarytenoid muscle for at least 5 years were included for study...
May 2017: Laryngoscope
https://www.readbyqxmd.com/read/27618779/speech-dysprosody-but-no-music-dysprosody-in-parkinson-s-disease
#11
Robert Harris, Klaus L Leenders, Bauke M de Jong
Parkinson's disease is characterized not only by bradykinesia, rigidity, and tremor, but also by impairments of expressive and receptive linguistic prosody. The facilitating effect of music with a salient beat on patients' gait suggests that it might have a similar effect on vocal behavior, however it is currently unknown whether singing is affected by the disease. In the present study, fifteen Parkinson patients were compared with fifteen healthy controls during the singing of familiar melodies and improvised melodic continuations...
September 9, 2016: Brain and Language
https://www.readbyqxmd.com/read/27289298/the-distribution-and-severity-of-tremor-in-speech-structures-of-persons-with-vocal-tremor
#12
Abby L Hemmerich, Eileen M Finnegan, Henry T Hoffman
BACKGROUND: Vocal tremor may be associated with cyclic oscillations in the pulmonary, laryngeal, velopharyngeal, or oral regions. OBJECTIVES: This study aimed to correlate the overall severity of vocal tremor with the distribution and severity of tremor in structures involved. METHODS: Endoscopic and clinical examinations were completed on 20 adults with vocal tremor and two age-matched controls during sustained phonation. Two judges rated the severity of vocal tremor and the severity of tremor affecting each of 13 structures...
June 8, 2016: Journal of Voice: Official Journal of the Voice Foundation
https://www.readbyqxmd.com/read/27273470/transducer-based-evaluation-of-tremor
#13
REVIEW
Dietrich Haubenberger, Giovanni Abbruzzese, Peter G Bain, Nin Bajaj, Julián Benito-León, Kailash P Bhatia, Günther Deuschl, Maria João Forjaz, Mark Hallett, Elan D Louis, Kelly E Lyons, Tiago A Mestre, Jan Raethjen, Maria Stamelou, Eng-King Tan, Claudia M Testa, Rodger J Elble
The International Parkinson and Movement Disorder Society established a task force on tremor that reviewed the use of transducer-based measures in the quantification and characterization of tremor. Studies of accelerometry, electromyography, activity monitoring, gyroscopy, digitizing tablet-based measures, vocal acoustic analysis, and several other transducer-based methods were identified by searching PubMed.gov. The availability, use, acceptability, reliability, validity, and responsiveness were reviewed for each measure using the following criteria: (1) used in the assessment of tremor; (2) used in published studies by people other than the developers; and (3) adequate clinimetric testing...
September 2016: Movement Disorders: Official Journal of the Movement Disorder Society
https://www.readbyqxmd.com/read/27262220/laryngeal-myofascial-pain-syndrome-as-a-new-diagnostic-entity-of-dysphonia
#14
Soo Yeon Jung, Hae Sang Park, Hasuk Bae, Jeong Hyun Yoo, Hyung Jun Park, Kee Duk Park, Han Su Kim, Sung Min Chung
OBJECTIVE: To consider the feasibility of diagnosing intrinsic laryngeal muscle myofascial pain syndrome (MPS) in dysphonic patients who demonstrated immediate symptom and stroboscopic finding improvement after laryngeal electromyography (LEMG) without further treatment. METHODS: A chart review of patients who showed subtle vocal fold movement abnormalities on a stroboscopic examination and underwent ultrasonography (US)-guided LEMG was performed. Patients with vocal fold paralysis, mucosal lesions, spasmodic dysphonia, and vocal tremor on stroboscopic examination were excluded...
April 2017: Auris, Nasus, Larynx
https://www.readbyqxmd.com/read/27079680/freddie-mercury-acoustic-analysis-of-speaking-fundamental-frequency-vibrato-and-subharmonics
#15
Christian T Herbst, Stellan Hertegard, Daniel Zangger-Borch, Per-Åke Lindestad
Freddie Mercury was one of the twentieth century's best-known singers of commercial contemporary music. This study presents an acoustical analysis of his voice production and singing style, based on perceptual and quantitative analysis of publicly available sound recordings. Analysis of six interviews revealed a median speaking fundamental frequency of 117.3 Hz, which is typically found for a baritone voice. Analysis of voice tracks isolated from full band recordings suggested that the singing voice range was 37 semitones within the pitch range of F#2 (about 92...
April 2017: Logopedics, Phoniatrics, Vocology
https://www.readbyqxmd.com/read/27075631/the-effect-of-anchors-on-reliability-of-endoscopic-tremor-ratings
#16
Soren Y Lowell, Richard T Kelley, Lauren Busekroos, Ramani Voleti, Carly J Hosbach-Cannon, Raymond H Colton, Dragos Mihaila
OBJECTIVES/HYPOTHESIS: The purpose of this study was to determine the effects of anchors and training on intrarater and inter-rater reliability for visual-perceptual, endoscopic tremor ratings. STUDY DESIGN: Prospective cohort study. METHODS: Nasoendoscopy recordings of 10 participants with a diagnosis of essential voice tremor were evaluated by five voice specialists using the Vocal Tremor Scoring System. Ratings were performed before, immediately after, and 4 weeks after implementation of a training program with anchor stimuli...
February 2017: Laryngoscope
https://www.readbyqxmd.com/read/27071284/voice-analysis-before-and-after-vocal-rehabilitation-in-patients-following-open-surgery-on-vocal-cords
#17
Mila Bunijevac, Mirjana Petrović-Lazić, Nadica Jovanović-Simić, Mile Vuković
BACKGROUND/AIM: The major role of larynx in speech, respiration and swallowing makes carcinomas of this region and their treatment very influential for patients' life quality. The aim of this study was to assess the importance of voice therapy in patients after open surgery on vocal cords. METHODS: This study included 21 male patients and the control group of 19 subjects. The vowel (A) was recorded and analyzed for each examinee. All the patients were recorded twice: firstly, when they contacted the clinic and secondly, after a three-month vocal therapy, which was held twiceper week on an outpatient basis...
February 2016: Vojnosanitetski Pregled. Military-medical and Pharmaceutical Review
https://www.readbyqxmd.com/read/26900819/vocal-tract-characteristics-in-parkinson-s-disease
#18
Patricia Gillivan-Murphy, Paul Carding, Nick Miller
PURPOSE OF REVIEW: Voice tremor is strongly linked to the Parkinson's disease speech-voice symptom complex. Little is known about the underlying anatomic source(s) of voice tremor when it occurs. We review recent literature addressing this issue. Additionally we report findings from a study we conducted employing rating of vocal tract structures viewed using nasolaryngoscopy during vocal and nonspeech tasks. RECENT FINDINGS: In Parkinson's disease, using laryngeal electromyography, tremor has not been identified in muscles in the vocal folds even when perceived auditorily...
June 2016: Current Opinion in Otolaryngology & Head and Neck Surgery
https://www.readbyqxmd.com/read/26765761/rapid-eye-movement-sleep-behaviour-disorder-in-women-with-parkinson-s-disease-is-an-underdiagnosed-entity
#19
Rohan R Mahale, Ravi Yadav, Pramod Kr Pal
Rapid eye movement sleep behavior disorder (RBD) is common in Parkinson's disease (PD). Little information exists about RBD in women with PD. The aim of this study was to determine the clinical expression of RBD in women with PD and note any differences in women with PD with and without RBD. One hundred fifty-six patients with PD were recruited. There were 37 women with PD and probable RBD was diagnosed using the RBD Screening Questionnaire. Other scales included Pittsburgh Sleep Quality Index, Parkinson's Disease Sleep Scale, Epworth Sleep Scale, Hamilton Anxiety Rating Scale and Hamilton Depression Rating Scale...
June 2016: Journal of Clinical Neuroscience: Official Journal of the Neurosurgical Society of Australasia
https://www.readbyqxmd.com/read/26712633/laryngoscopy-evaluation-protocol-for-the-differentiation-of-essential-and-dystonic-voice-tremor
#20
Bruno Teixeira de Moraes, Noemi Grigoletto de Biase
INTRODUCTION: Although syndromes that cause voice tremor have singular characteristics, the differential diagnosis of these diseases is a challenge because of the overlap of the existing signs and symptoms. OBJECTIVE: To develop a task-specific protocol to assess voice tremor by means of nasofibrolaryngoscopy and to identify those tasks that can distinguish between essential and dystonic tremor syndromes. METHODS: Cross-sectional study. The transnasal fiberoptic laryngoscopy protocol, which consisted of the assessment of palate, pharynx and larynx tremor during the performance of several vocal and non-vocal tasks with distinct phenomenological characteristics, was applied to 19 patients with voice tremor...
January 2016: Brazilian Journal of Otorhinolaryngology
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