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https://www.readbyqxmd.com/read/29348423/a-tissue-mimetic-nano-fibrillar-hybrid-injectable-hydrogel-for-potential-soft-tissue-engineering-applications
#1
Neda Latifi, Meisam Asgari, Hojatollah Vali, Luc Mongeau
While collagen type I (Col-I) is commonly used as a structural component of biomaterials, collagen type III (Col-III), another fibril forming collagen ubiquitous in many soft tissues, has not previously been used. In the present study, the novel concept of an injectable hydrogel with semi-interpenetrating polymeric networks of heterotypic collagen fibrils, with tissue-specific Col-III to Col-I ratios, in a glycol-chitosan matrix was investigated. Col-III was introduced as a component of the novel hydrogel, inspired by its co-presence with Col-I in many soft tissues, its influence on the Col-I fibrillogenesis in terms of diameter and mechanics, and its established role in regulating scar formation...
January 18, 2018: Scientific Reports
https://www.readbyqxmd.com/read/29346796/background-factors-and-subjective-voice-symptoms-in-patients-with-acquired-vocal-fold-scarring-and-sulcus-vocalis
#2
Emma Malmström, Stellan Hertegård
OBJECTIVE: Vocal fold scarring (VFS) and sulcus vocalis (SV) often result in severe and chronic voice disorders. This study compares subjective voice complaints as rated with the Voice Handicap Index and etiological factors for patients with VFS and SV. PATIENTS AND METHODS: Data were collected from the medical records at the Department of Otorhinolaryngology, Karolinska University Hospital, for 27 VFS patients and 27 SV patients. Descriptive background factors were compared between the groups and data were compared from the Swedish Voice Handicap Index (Sw-VHI) questionnaires...
January 18, 2018: Folia Phoniatrica et Logopaedica
https://www.readbyqxmd.com/read/29346486/treatment-outcomes-and-adverse-events-following-in-office-angiolytic-laser-with-or-without-concurrent-polypectomy-for-vocal-fold-polyps
#3
Yu-Hsuan Lin, Chi-Te Wang, Feng-Chuan Lin, Li-Jen Liao, Wu-Chia Lo, Po-Wen Cheng
Importance: In-office angiolytic laser procedures have been used successfully as an alternative treatment for vocal fold polyps; little is known in detail about the treatment outcomes and adverse events. Objective: To examine the outcomes and incidence rates of adverse events associated with in-office angiolytic laser procedures with or without concurrent polypectomy as an alternative treatment for vocal fold polyps. Design, Setting, and Participants: Retrospective cohort study at a tertiary medical center...
January 18, 2018: JAMA Otolaryngology—Head & Neck Surgery
https://www.readbyqxmd.com/read/29338292/temporalis-fascia-transplantation-for-sulcus-vocalis-and-vocal-fold-scar-long-term-outcomes
#4
William E Karle, Samuel N Helman, Amy Cooper, Yuan Zhang, Michael J Pitman
OBJECTIVE: Sulcus vocalis and vocal fold scar involve derangement of the superficial lamina propria of the vocal fold, which results in significant dysphonia. Many options exist for treatment, most of which have unsatisfactory and unpredictable outcomes. Autologous transplantation of temporalis fascia into the vocal fold (ATFV) has the potential to be a better treatment option, but long-term outcomes have not been well studied. METHODS: Retrospective chart review and patient survey...
January 1, 2018: Annals of Otology, Rhinology, and Laryngology
https://www.readbyqxmd.com/read/29327686/severity-of-dysphonia-in-patients-during-first-days-after-iatrogenic-injury
#5
Katarzyna Jędra, Ewelina Sielska-Badurek, Kazimierz Niemczyk
INTRODUCTION: The most common cause of vocal fold paralysis (VFP) is iatrogenic injury. Patients with symptoms of VFP present to the specialist after a couple of weeks or even months since the onset of symptoms. In the literature, the data regarding speech impairment during the first days after a iatrogenic injury is lacking. AIM: to evaluate the quality of voice during first days of vocal fold paralysis following a iatrogenic injury. MATERIALS AND METHODS: Twenty-five patients with iatrogenic vocal fold paralysis who presented for phoniatric consultation at the Department of Otolaryngology of the Medical University of Warsaw between May 2015 and December 2016 were enrolled in the study...
October 31, 2017: Otolaryngologia Polska
https://www.readbyqxmd.com/read/29322573/narrow-band-imaging-versus-laryngovideostroboscopy-in-precancerous-and-malignant-vocal-fold-lesions
#6
Anna Rzepakowska, Ewelina Sielska-Badurek, Raul Cruz, Maria Sobol, Ewa Osuch-Wójcikiewicz, Kazimierz Niemczyk
BACKGROUND: This is a comparative analysis of the diagnostic accuracy of narrow band imaging (NBI) and laryngovideostroboscopy (LVS) in the assessment of premalignant and malignant vocal fold lesions. METHODS: A prospective analysis was performed on 105 consecutive patients with vocal fold lesions. The NBI and LVS were obtained before the microsurgery. RESULTS: The NBI and LVS showed no significant differences in identifying premalignant and malignant pathologies...
January 10, 2018: Head & Neck
https://www.readbyqxmd.com/read/29318925/objective-measurement-of-mucosal-wave-parameters-in-diagnosing-benign-lesions-of-the-vocal-folds
#7
Paulina Krasnodębska, Agata Szkiełkowska, Beata Miaśkiewicz, Elżbieta Włodarczyk, Anna Domeracka-Kołodziej, Henryk Skarżyński
INTRODUCTION: The diagnostic procedure of phonation is dominated by subjective assessment tools. It seems reasonable to seek methods of quantitative glottal cycle assessment. OBJECTIVE: The aim of our study was the analysis of open quotients (OQ) of the glottis. METHODS: One hundred and twenty-four people were included in the study. Methodology was based on tools available in everyday phoniatrics practice - laryngovideostroboscopy (LVS) and electroglottography (EGG)...
January 10, 2018: Logopedics, Phoniatrics, Vocology
https://www.readbyqxmd.com/read/29310828/-sedation-using-dexmedetomidine-and-remifentanil-with-local-anesthesia-for-intraoperative-speech-monitoring-a-case-report
#8
Leonardo Riedi de Andrade, Yara Marcondes Machado Castiglia
BACKGROUND AND OBJECTIVE: Some surgical procedures such as laryngoplasty require patients to remain conscious during the intraoperative phase in order to enable speech monitoring. Dexmedetomidine and remifentanil were used in this study, since they promote appropriate patient collaboration with facilitated awakening, and are rapidly eliminated. CASE REPORT: The patient complained of dysphonia, which had resulted from unilateral vocal fold paralysis after previous thyroidectomy...
January 5, 2018: Revista Brasileira de Anestesiologia
https://www.readbyqxmd.com/read/29310440/the-ferret-as-a-surgical-model-for-vocal-fold-scar-creation-and-treatment
#9
Haruka Kodama, Yoshihiko Kumai, Kohei Nishimoto, Yutaka Toya, Satoru Miyamaru, Shinobu Furushima, Eiji Yumoto
OBJECTIVES: To develop a vocal fold (VF) scarring procedure in the ferret, characterize the scars histologically, and test the injectability of the lamina propria (LP). Secondarily, to compare laryngeal anatomy of the ferret with rat and rabbit. MATERIALS AND METHODS: The larynges of 18 male ferrets were prepared by unilateral scarring, and normal larynges from 6 female Wistar rats and 5 male albino rabbits were used for comparative purposes. For scarring, the right VF were electrocauterized, ablating the entire LP...
January 1, 2018: Annals of Otology, Rhinology, and Laryngology
https://www.readbyqxmd.com/read/29299645/transcutaneous-laryngeal-ultrasonography-for-laryngeal-immobility-diagnosis-in-patients-with-voice-disorders-after-thyroid-parathyroid-surgery
#10
Diane S Lazard, Héloïse Bergeret-Cassagne, Muriel Lefort, Laurence Leenhardt, Gilles Russ, Frédérique Frouin, Christophe Trésallet
BACKGROUND: Transcutaneous laryngeal ultrasonography (TLUS) was recently developed to assess recurrent nerve palsy after thyroid/parathyroid surgery, with variable rates of efficiency. The aim of the current study was to evaluate this technique using subjective estimation and post-processing quantitative data. METHODS: Fifty subjects presenting with a recurrent nerve palsy and 50 "controls" presenting with voice, swallowing, or breathing disorders following thyroid/parathyroid surgery were prospectively included...
January 3, 2018: World Journal of Surgery
https://www.readbyqxmd.com/read/29299524/computed-tomographic-assessment-of-autologous-fat-injection-augmentation-for-vocal-fold-paralysis
#11
Naoki Nishio, Yasushi Fujimoto, Mariko Hiramatsu, Takashi Maruo, Kenji Suga, Hidenori Tsuzuki, Nobuaki Mukoyama, Mariko Shimono, Kazuhiro Toriyama, Keisuke Takanari, Yuzuru Kamei, Michihiko Sone
Objective: To perform a quantitative computed tomography (CT) assessment of short- and long-term outcomes of autologous fat injection augmentation in patients with unilateral vocal fold paralysis. Study Design: Retrospective case series. Methods: Twelve patients who had undergone autologous fat injection augmentation for unilateral vocal fold paralysis in our hospital between 2011 and 2015 were enrolled in this study. The autologous fat for injection was acquired from periumbilical subcutaneous tissue and was injected orally using a special-purpose laryngeal injection needle...
December 2017: Laryngoscope Investigative Otolaryngology
https://www.readbyqxmd.com/read/29291464/corrigendum-to-a-mixed-effects-model-approach-for-the-statistical-analysis-of-vocal-fold-viscoelastic-shear-properties-j-mech-behav-biomed-mater-75-2017-477-485
#12
Chet C Xu, Roger W Chan, Han Sun, Xiaowei Zhan
No abstract text is available yet for this article.
December 29, 2017: Journal of the Mechanical Behavior of Biomedical Materials
https://www.readbyqxmd.com/read/29289411/evaluation-of-the-supraglottic-and-subglottic-activities-including-acoustic-assessment-of-the-opera-chant-singers
#13
Emine Petekkaya, Ahmet Hilmi Yücel, Özgür Sürmelioğlu
Opera and chant singers learn to effectively use aerodynamic components by breathing exercises during their education. Aerodynamic components, including subglottic air pressure and airflow, deteriorate in voice disorders. This study aimed to evaluate the changes in aerodynamic parameters and supraglottic structures of men and women with different vocal registers who are in an opera and chant education program. Vocal acoustic characteristics, aerodynamic components, and supraglottic structures were evaluated in 40 opera and chant art branch students...
December 28, 2017: Journal of Voice: Official Journal of the Voice Foundation
https://www.readbyqxmd.com/read/29288312/factors-predicting-the-recovery-of-unilateral-vocal-fold-paralysis-after-thyroidectomy
#14
Yong-Sug Choi, Young-Hoon Joo, Young-Hak Park, Sang-Yeon Kim, Dong-Il Sun
BACKGROUND: We used voice analysis and clinicopathological factors to explore the prognosis of unilateral vocal fold paralysis after thyroid surgery. METHODS: The medical records of 63 females who developed unilateral vocal fold paralysis after thyroidectomy were reviewed. All patients were divided into two groups: those who recovered from vocal fold paralysis and those who did not. We analyzed clinical parameters and voice analysis results in a search for correlations with recovery from paralysis...
December 30, 2017: World Journal of Surgery
https://www.readbyqxmd.com/read/29288310/long-lasting-voice-related-symptoms-in-patients-without-vocal-cord-palsy-after-thyroidectomy
#15
Choung-Soo Kim, Jun Ook Park, Ja-Sung Bae, So-Hee Lee, Young-Hoon Joo, Young-Hak Park, Yeon-Shin Hwang, Mi-Ran Shim, Dong-Il Sun
BACKGROUND: Some patients complain of long-lasting voice symptoms after thyroid surgery without objective vocal fold pathology. We assessed the factors that may influence voice symptoms more than 12 months after thyroidectomy. METHODS: We performed a retrospective analysis of 68 patients from July 2010 to May 2012. The voices of all patients were analyzed before and after thyroid surgery (2 weeks and 2, 4, 6, 8, 10, and 12 months after surgery). According to the recovery of postoperative voice symptoms, patients were divided into two groups: the non-recovery group and the recovery group...
December 29, 2017: World Journal of Surgery
https://www.readbyqxmd.com/read/29287865/adaptation-and-validation-of-mandarin-chinese-version-of-the-pediatric-voice-handicap-index-pvhi
#16
Dan Lu, Mengjie Huang, Zhen Li, Edwin M-L Yiu, Ivy K-Y Cheng, Hui Yang, Estella P-M Ma
OBJECTIVE: The aim of this study was to adapt and validate the English version of pediatric voice handicap index (pVHI) into Mandarin Chinese.
 METHODS: A cross-sectional study was performed from May 2016 to April 2017. A total of 367 parents participated in this study, and 338 parents completed the translated questionnaire without missing data, including 213 parents of children with voice disorders (patients group), and 125 parents of children without voice disorders (control group)...
January 2018: International Journal of Pediatric Otorhinolaryngology
https://www.readbyqxmd.com/read/29287848/recurrent-laryngeal-nerve-reinnervation-for-management-of-aspiration-in-a-subset-of-children
#17
Karen B Zur, Linda M Carroll
Pediatric aspiration is a multifactorial process that is often complex to manage. Recurrent laryngeal nerve (RLN) injury can cause glottic insufficiency and aspiration. We describe three cases of unilateral vocal fold paralysis resulting in aspiration and the successful use of the RLN reinnervation for its treatment. The theory for utilizing the reinnervation procedure is that when glottic closure improves and a less breathy vocalization occurs, then the larynx is better equipped to protect the lower airway and avoid aspiration...
January 2018: International Journal of Pediatric Otorhinolaryngology
https://www.readbyqxmd.com/read/29286438/hemi-laryngeal-setup-for-studying-vocal-fold-vibration-in-three-dimensions
#18
Christian T Herbst, Vit Hampala, Maxime Garcia, Riccardo Hofer, Jan G Svec
The voice of humans and most non-human mammals is generated in the larynx through self-sustaining oscillation of the vocal folds. Direct visual documentation of vocal fold vibration is challenging, particularly in non-human mammals. As an alternative, excised larynx experiments provide the opportunity to investigate vocal fold vibration under controlled physiological and physical conditions. However, the use of a full larynx merely provides a top view of the vocal folds, excluding crucial portions of the oscillating structures from observation during their interaction with aerodynamic forces...
November 25, 2017: Journal of Visualized Experiments: JoVE
https://www.readbyqxmd.com/read/29284560/the-vocal-cord-dysfunction-questionnaire-validity-and-reliability-of-the-persian-version
#19
Hamide Ghaemi, Seyyedeh Maryam Khoddami, Zahra Soleymani, Fariborz Zandieh, Shohreh Jalaie, Hamid Ahanchian, Ehsan Khadivi
OBJECTIVES: The aim of this study was to develop, validate, and assess the reliability of the Persian version of Vocal Cord Dysfunction Questionnaire (VCDQP). STUDY DESIGN: The study design was cross-sectional or cultural survey. MATERIALS AND METHODS: Forty-four patients with vocal fold dysfunction (VFD) and 40 healthy volunteers were recruited for the study. To assess the content validity, the prefinal questions were given to 15 experts to comment on its essential...
December 25, 2017: Journal of Voice: Official Journal of the Voice Foundation
https://www.readbyqxmd.com/read/29282507/recovery-of-voice-after-reconstruction-of-the-recurrent-laryngeal-nerve-and-adjuvant-nimodipine
#20
P Mattsson, A Frostell, G Björck, J K E Persson, R Hakim, J Zedenius, M Svensson
BACKGROUND: Transection injury to the recurrent laryngeal nerve (RLN) has been associated with permanent vocal fold palsy, and treatment has been limited to voice therapy or local treatment of vocal folds. Microsurgical repair has been reported to induce a better function. The calcium channel antagonist nimodipine improves functional recovery after experimental nerve injury and also after cranial nerve injury in patients. This study aims to present voice outcome in patients who underwent repair of the RLN and received nimodipine during regeneration...
December 28, 2017: World Journal of Surgery
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