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https://www.readbyqxmd.com/read/27893084/feasibility-of-clinical-endoscopy-and-stroboscopy-in-children-with-bilateral-vocal-fold-lesions
#1
Stephanie R C Zacharias, Susan Baker Brehm, Barbara Weinrich, Lisa Kelchner, Meredith Tabangin, Alessandro de Alarcon
Purpose: The purpose of this study was to examine the utility of flexible and rigid endoscopy and stroboscopy for the identification of anatomical and physiological features in children with bilateral vocal fold lesions. The secondary purpose was to describe the age distribution of patients who could tolerate use of the different types of endoscopes. Method: This cross-sectional clinic-based study included 38 children (ages 5 to 12 years) diagnosed with bilateral vocal fold lesions via videoendoscopy...
November 1, 2016: American Journal of Speech-language Pathology
https://www.readbyqxmd.com/read/27782599/note-a-dual-chip-stroboscopic-pulsed-radar-for-probing-passive-sensors
#2
F Minary, D Rabus, G Martin, J-M Friedt
Stroboscopy provides an energy and computationally efficient means of sampling radiofrequency and microwave signals assumed to be reproducible under external excitation. While well known for impulse mode RADAR receivers, we here investigate its use for interrogating surface acoustic wave (SAW) transducers acting as passive cooperative targets. Amongst the originality of the implementation is the need to keep phase coherence between successive pulse generations which last up to tens of the radiofrequency periods to optimally transfer energy to the transducer...
September 2016: Review of Scientific Instruments
https://www.readbyqxmd.com/read/27716854/comparison-of-videostroboscopy-to-stroboscopy-derived-from-high-speed-videoendoscopy-for-evaluating-patients-with-vocal-fold-mass-lesions
#3
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...
November 1, 2016: American Journal of Speech-language Pathology
https://www.readbyqxmd.com/read/27637353/laryngeal-preneoplastic-lesions-and-cancer-challenging-diagnosis-qualitative-literature-review-and-meta-analysis
#4
REVIEW
Giuditta Mannelli, Lorenzo Cecconi, Oreste Gallo
BACKGROUND: Multi-step cancerogenesis guides laryngeal cancer onset and it includes a wide variety of pre-cancerous lesions macroscopically challenging to identify and distinguish from initial cancerous foci. OBJECT: Different modalities of diagnostic techniques of laryngeal epithelial lesions exist and they do not offer a single system to make a differential diagnosis. Hence, this meta-analysis aimed to synthesize the validity of each single diagnostic tool to improve laryngeal patient management...
October 2016: Critical Reviews in Oncology/hematology
https://www.readbyqxmd.com/read/27575295/contribution-of-glottic-insufficiency-to-perceived-breathiness-in-classically-trained-singers
#5
Ellen Graham, Vrushali Angadi, Joanna Sloggy, Joseph Stemple
Breathiness in the singing voice is problematic for classical singers. Voice students and singing teachers typically attribute breathiness to breath management issues and breathing technique. The present study sought to determine whether glottic insufficiency may also contribute to breathiness in a singer's voice. Studies have revealed a relationship between insufficient vocal fold closure and inefficiency in the speaking voice. However, the effect of insufficient vocal fold closure on vocal efficiency in singers has yet to be determined...
September 2016: Medical Problems of Performing Artists
https://www.readbyqxmd.com/read/27497267/laryngeal-ultrasound-and-pediatric-vocal-fold-nodules
#6
Julina Ongkasuwan, Danielle Devore, Sarah Hollas, Jeremy Jones, Brandon Tran
OBJECTIVES/HYPOTHESIS: The term vocal fold nodules refers to bilateral thickening of the membranous folds with minimal impairment of the vibratory properties of the mucosa. Nodules are thought to be related to repetitive mechanical stress, associated with voice use patterns. Diagnosis is typically made in the office via either rigid or flexible laryngeal stroboscopy. Depending on the individual child, obtaining an optimal view of the larynx can be difficult if not impossible. Recent advances in high-frequency ultrasonography allows for transcervical examination of laryngeal structures...
August 6, 2016: Laryngoscope
https://www.readbyqxmd.com/read/27469450/efficacy-of-six-tasks-to-clear-laryngeal-mucus-aggregation
#7
Heather Shaw Bonilha, Terri Treman Gerlach, Lori Ellen Sutton, Amy Elizabeth Dawson, Katlyn McGrattan, Paul J Nietert, Dimitar D Deliyski
PURPOSE: Clinicians commonly teach patients alternative clearing behaviors to reduce coughing and hard throat clearing with the assumption that these behaviors clear mucus from the vocal folds. Yet there is limited evidence of the effectiveness of these alternative behaviors at clearing mucus. This study's purpose was to evaluate the efficacy of reducing laryngeal mucus aggregation using alternative approaches in comparison with hard coughing and hard throat clearing in people with and without voice disorders...
July 25, 2016: Journal of Voice: Official Journal of the Voice Foundation
https://www.readbyqxmd.com/read/27427181/objective-evaluation-of-presbyphonia-spectroacoustic-study-on-142-patients-with-praat
#8
Chiara Mezzedimi, Marta Di Francesco, Walter Livi, Maria Carla Spinosi, Claudio De Felice
OBJECTIVES: Presbyphonia is the sequence of physiological events related to the process of senility of the vocal folds. The aim of our analysis was to provide deeper knowledge of presbyphonia, raising awareness of this condition as well as giving basic suggestions on how to treat related vocal alterations. STUDY DESIGN: This is a randomized study. METHODS: In 2015, we conducted a study on 182 subjects. Each participant underwent an ENT examination (video-laryngo-stroboscopy and subjective acoustic analysis using the General degree of dysphonia; degree of voice Instability; degree of voice Roughness; degree of voice Breathiness; degree of voice Asthenia; degree of voice Strain (GIRBAS) scale) and a logopedic examination (anamnesis, medical history, and acoustic voice analysis using the free software Praat)...
July 14, 2016: Journal of Voice: Official Journal of the Voice Foundation
https://www.readbyqxmd.com/read/27301897/the-accuracy-of-the-laryngopharyngeal-reflux-diagnosis-utility-of-the-stroboscopic-exam
#9
Mark A Fritz, Michael J Persky, Yixin Fang, C Blake Simpson, Milan R Amin, Lee M Akst, Gregory N Postma
OBJECTIVE: To determine the prevalence and also accuracy of the laryngopharyngeal reflux (LPR) referring diagnosis and to determine the most useful clinical tool in arriving at the final diagnosis in a tertiary laryngology practice. STUDY DESIGN: Case series with planned data collection. SETTING: Six tertiary academic laryngology practices. SUBJECTS AND METHODS: We collected referring diagnosis and demographic information, including age, sex, ethnicity, referring physician, and whether or not patients had prior flexible laryngoscopy for 1077 patients presenting with laryngologic complaints from January 2010 and June 2013...
October 2016: Otolaryngology—Head and Neck Surgery
https://www.readbyqxmd.com/read/27255255/qualitative-and-quantitative-analyses-of%C3%A2-stroke-dynamics-and-microfluidics-of%C3%A2-phacoemulsification-probes-operating-in%C3%A2-different-modes
#10
Jaime Zacharias
PURPOSE: To compare phacoemulsification (phaco) tip movement, microfluidic dynamics, and tip-to-load interaction between longitudinal, torsional, and elliptical ultrasound (US) modalities. SETTING: Phacodynamics Laboratory, Clínica Oftalmológica, Pasteur, Santiago, Chile. DESIGN: Experimental study. METHODS: All experiments were performed using a fluid-filled optical test chamber and phaco tips that were US power activated...
May 2016: Journal of Cataract and Refractive Surgery
https://www.readbyqxmd.com/read/27208902/physiologic-and-acoustic-effects-of-opera-performance
#11
Paul E Kwak, C Richard Stasney, Jeremy R Hathway, Danielle Guffey, Charles G Minard, Julina Ongkasuwan
INTRODUCTION/HYPOTHESIS: Opera performance is physiological and emotional, and singing performers utilize their larynges in often strenuous ways. Historically, the training of a classical voice has been considered the paragon of healthy singing. However, the natural history of a performing larynx has not been studied systematically. There is paucity of scientific studies to guide practice patterns, particularly with regard to the course and extent of post-performance physiologic and acoustic changes...
May 18, 2016: Journal of Voice: Official Journal of the Voice Foundation
https://www.readbyqxmd.com/read/27177444/systematic-review-of-the-diagnostic-value-of-laryngeal-stroboscopy-in-excluding-early-glottic-carcinoma
#12
Mathé van Balkum, Bianca Buijs, Esmé J Donselaar, Daphne C A Erkelens, Eric Goulin Lippi Fernandes, Inge Wegner, Wilko Grolman, Luuk M Janssen
OBJECTIVE: Laryngeal stroboscopy is an important diagnostic tool in the work-up of patients with phoniatric complaints. The aim of this article is to evaluate the diagnostic value of laryngeal stroboscopy in excluding glottic carcinoma in patients with suspected glottic carcinoma. DATA SOURCES: PubMed, Embase, and the Cochrane Library. REVIEW METHODS: A systematic literature search was performed in PubMed, Embase, and the Cochrane Library...
May 14, 2016: Clinical Otolaryngology
https://www.readbyqxmd.com/read/27107402/minithyrotomy-with-radiofrequency-induced-thermotherapy-for-the-treatment-of-adductor-spasmodic-dysphonia
#13
Shaun C Desai, Andrea M Park, Rebecca D Chernock, Randal C Paniello
OBJECTIVES/HYPOTHESIS: A simple, safe and effective surgical alternative for treating adductor spasmodic dysphonia (ADSD) would appeal to many patients. This study evaluates a new option, using radiofrequency-induced thermotherapy (RFITT) of the thyroarytenoid muscle (TA) via the minithyrotomy approach to reduce the force of adduction. METHODS: Fifteen dogs were used. In part 1, the optimal RFITT power settings, exposure time, probe location, and number of passes were determined...
October 2016: Laryngoscope
https://www.readbyqxmd.com/read/26977564/-the-state-of-the-larynx-in-the-patients-presenting-with-chronic-obstructive-pulmonary-disease
#14
E A Gilifanov, V A Nevzorova, S A Artyushkin, I V Ivanets
The objective of the present study was to evaluate the clinical state of the larynx and its microbial population in 49 patients examined at the stage of stable condition of chronic obstructive pulmonary disease. Examination of the larynx was carried out with the use of a rigid laryngoscope having a visual angle of 70 degrees, videofibrolaryngoscopy, and stroboscopy using a «TelePac» videocomplex (Karl Storz, Germany). It was supplemented by the study of the bacteriological and mycological paysage. The acoustic analysis of the voice was performed with the help of the Specta PLUS computer program...
2016: Vestnik Otorinolaringologii
https://www.readbyqxmd.com/read/26970554/laryngeal-examination-in-thyroid-and-parathyroid-surgery-an-american-head-and-neck-society-consensus-statement-ahns-consensus-statement
#15
Catherine F Sinclair, Jeffrey M Bumpous, Bryan R Haugen, Andres Chala, Daniel Meltzer, Barbra S Miller, Neil S Tolley, Jennifer J Shin, Gayle Woodson, Gregory W Randolph
This American Head and Neck Society (AHNS) consensus statement discusses the techniques of laryngeal examination for patients undergoing thyroidectomy and parathyroidectomy. It is intended to help guide all clinicians who diagnose or manage adult patients with thyroid disease for whom surgery is indicated, contemplated, or has been performed. This consensus statement concludes that flexible transnasal laryngoscopy is the optimal laryngeal examination technique, with other techniques including laryngeal ultrasound and stroboscopy being useful in selected scenarios...
June 2016: Head & Neck
https://www.readbyqxmd.com/read/26730600/regeneration-of-vocal-fold-mucosa-using-tissue-engineered-structures-with-oral-mucosal-cells
#16
Mioko Fukahori, Shun-Ichi Chitose, Kiminori Sato, Shintaro Sueyoshi, Takashi Kurita, Hirohito Umeno, Yu Monden, Ryoji Yamakawa
OBJECTIVES: Scarred vocal folds result in irregular vibrations during phonation due to stiffness of the vocal fold mucosa. To date, a completely satisfactory corrective procedure has yet to be achieved. We hypothesize that a potential treatment option for this disease is to replace scarred vocal folds with organotypic mucosa. The purpose of this study is to regenerate vocal fold mucosa using a tissue-engineered structure with autologous oral mucosal cells. STUDY DESIGN: Animal experiment using eight beagles (including three controls)...
2016: PloS One
https://www.readbyqxmd.com/read/26700739/voice-characteristics-associated-with-polycystic-ovary-syndrome
#17
Kadriye Aydin, Sevtap Akbulut, Mehmet Gokhan Demir, Sevin Demir, Aysenur Ozderya, Sule Temizkan, Mehmet Sargin
OBJECTIVES/HYPOTHESIS: To test the assumption that voice is changed in polycystic ovary syndrome (PCOS) and identify changes that occur. STUDY DESIGN: Cross-sectional pilot study. METHODS: Thirty patients with PCOS and a control group of 22 age-matched and body mass index-matched healthy women were included. Demographic data, anthropometric measurement, serum androgens, and Voice Handicap Index-10 were determined. Transnasal fiberoptic laryngoscopy and rigid stroboscopy were performed...
September 2016: Laryngoscope
https://www.readbyqxmd.com/read/26693452/voice-outcome-following-carbon-dioxide-laser-assisted-microlaryngeal-surgery
#18
Shilpa Divakaran, Arun Alexander, Sabarinath Vijayakumar, Sunil Kumar Saxena
Very few studies have been conducted in South Indian population to evaluate glottic function and voice outcome following carbon dioxide (CO2) laser assisted microsurgery for benign lesions of the larynx. This is a descriptive study which aims at assessing the voice outcome (perceptual and acoustic) and vocal fold function (stroboscopic) following CO2 laser excision in benign vocal fold lesions. 50 adult patients with benign laryngeal lesions were selected to undergo CO2 laser excision in super-pulse mode at power setting of 6 watts...
December 2015: Indian Journal of Otolaryngology and Head and Neck Surgery
https://www.readbyqxmd.com/read/26651146/analysis-of-laryngoscopic-features-in-patients-with-unilateral-vocal-fold-paresis
#19
Peak Woo, Arjun K Parasher, Tova Isseroff, Amanda Richards, Mark Sivak
OBJECTIVES/HYPOTHESIS: The diagnosis of paresis in patients with vocal fold motion impairment remains a challenge. More than 27 clinical parameters have been cited that may signify paresis. We hypothesize that some features are more significant than others. STUDY DESIGN: Prospective case series. METHODS: Two laryngologists rated laryngoscopy findings in 19 patients suspected of paresis. The diagnosis was confirmed with laryngeal electromyography...
August 2016: Laryngoscope
https://www.readbyqxmd.com/read/26634781/subjective-and-objective-voice-evaluation-in-sj%C3%A3-gren-s-syndrome
#20
Ziya Saltürk, Erdi Özdemir, Tolgar Lütfi Kumral, Zeynep Karabacakoğlu, Esra Kumral, Hatice Elvin Yildiz, Gökhan Mersinlioğlu, Yavuz Atar, Güler Berkiten, Güven Yildirim, Yavuz Uyar
Objective The aim of this study is to assess the subjective and objective aspects of voice in Sjögren's syndrome. Methods The study enrolled 10 women with Sjögren's syndrome and 12 healthy women. Maximum phonation time, fundamental frequency, jitter, shimmer, and noise-to-harmonics ratio were determined during acoustic voice analysis. The Stroboscopy Evaluation Rating Form was used for the laryngostroboscopic evaluation. A subjective evaluation was performed using the Turkish version of Voice Handicap Index-10...
December 4, 2015: Logopedics, Phoniatrics, Vocology
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