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https://www.readbyqxmd.com/read/28418345/cricotracheal-resection-in-a-patient-with-severe-subglottic-stenosis-advantages-of-a-temporary-non-cannulated-tracheostomy
#1
Todor Miroslavov Popov, Tzvetomir Marinov, Julian Rangachev, Dimitar Konov, Maya Belitova
BACKGROUND: Stenosis in the area of the cricotracheal segment is still a challenging problem to be dealt with. Post-intubational cases mark an increase in recent years due to the advances in intensive care, thoracic surgery and neurosurgery departments. CASE REPORT: This paper describes a case report of a patient with severe subglottic stenosis (grade III according to the Cotton-Myer scale), introduces a new option in cricotracheal resections - postoperative temporary non-cannulated tracheostomy and describes its advantages...
April 5, 2017: Balkan Medical Journal
https://www.readbyqxmd.com/read/28416071/-acute-upper-airway-obstruction-caused-by-a-multinodular-goitre-after-tracheotomy
#2
Chadi Nimeh Abdel-Halim, Bibi Lange
This case report illustrates how a multinodular goitre caused acute airway obstruction in a multitrauma 66-year-old male after tracheotomy. The patient had no symptoms of the goitre before the tracheotomy but developed subglottic airway obstruction at the time of decannulation. He underwent a subacute total thyroidectomy which removed the obstructive symptoms. A weakening of the tracheal tube followed by the tracheotomy possibly caused the tracheal stenosis in combination with the goitre.
April 3, 2017: Ugeskrift for Laeger
https://www.readbyqxmd.com/read/28405749/the-anterior-commissure-of-the-human-larynx-revisited
#3
Jean Michel Prades, M Peoc'h, C Petcu, A Karkas, J M Dumollard, M Gavid
BACKGROUND: The anterior commissure (AC) of the human larynx is usually understood as an area of the glottis anteriorly situated between the two vocal folds inserting to the thyroid cartilage (TC). The pattern of spread of AC carcinoma could hypothesize that AC could include other structures of the ventral larynx as developmental anatomy could demonstrate. METHODS: Ten adult larynx specimens from donation program cadavers and 15 selected fetal specimens (from 11 to 34 weeks of amenorrhoea) were studied using microdissection and histological serial sections stained with hematoxylin-eosin and reticuline...
April 12, 2017: Surgical and Radiologic Anatomy: SRA
https://www.readbyqxmd.com/read/28390597/association-of-airway-abnormalities-with-22q11-2-deletion-syndrome
#4
Rosalba Sacca, Karen B Zur, T Blaine Crowley, Elaine H Zackai, Kathleen D Valverde, Donna M McDonald-McGinn
INTRODUCTION: 22q11.2 deletion syndrome (22q11.2DS) presents with complex but variable symptoms, including cardiac, immune, palatal, endocrine, cognitive, and psychiatric issues. However, an association of 22q11.2DS with structural airway abnormalities has not been formally described. The aim of this study was to document the frequency of this association. METHODS: We retrospectively reviewed medical records of patients with 22q11.2DS evaluated in the 22q and You Center at the Children's Hospital of Philadelphia between 1999 and 2015 referred to otolaryngology for an airway assessment...
May 2017: International Journal of Pediatric Otorhinolaryngology
https://www.readbyqxmd.com/read/28383842/-laryngeal-involvements-in-systemic-diseases-a-discussion-based-on-a-case-report
#5
L Lejeune, Ph Lefèbvre, C Finck
Systemic diseases can affect the larynx. The most common laryngeal involvements, although often unknown, consist in inflammatory laryngitis, laryngeal ulcers, cricoarytenoid arthritis, recurrent laryngeal nerve paresis and subglottic stenosis. The clinical case we report is more uncommon, but representative of autoimmune diseases : vocal folds bamboo nodes in a young female patient, age 34, suffering from active rheumatoid arthritis. In the present article, we detail the current knowledge of this pathology and later discuss different laryngeal involvements of systemic diseases by lesion type et their management...
July 2016: Revue Médicale de Liège
https://www.readbyqxmd.com/read/28377403/evaluation-of-the-safety-and-effectiveness-of-the-rapid-flow-expulsion-maneuver-to-clear-subglottic-secretions-in-vitro-and-in-vivo
#6
Jie Li, Yajuan Zong, Quan Zhou, Huaping Dai, Chen Wang
BACKGROUND: Clearing subglottic secretions has been proved to reduce ventilator-associated pneumonia. A manual method named the rapid flow expulsion maneuver was developed to clear subglottic secretions. This study evaluates its safety and effectiveness and analyzes the influential factors. METHODS: This study was composed of 2 parts. In an in vitro study, secretions were instilled directly to the area above the cuff in an intubated tracheal model. Secretions were expelled by the rapid flow expulsion maneuver with different volumes and peak flows in 3 tracheal positions (0, 15, and 30°)...
April 4, 2017: Respiratory Care
https://www.readbyqxmd.com/read/28372128/relations-among-subglottal-pressure-breathing-and-acoustic-parameters-of-sentence-level-prominence-in-german
#7
Caterina Petrone, Susanne Fuchs, Laura L Koenig
This study investigates whether acoustic correlates of prominence are related to actions of the respiratory system resulting in local changes of subglottal pressure (Psub). Simultaneous recordings were made of acoustics; intraoral pressure (Pio), as an estimate of Psub; and thoracic and abdominal volume changes. Ten German speakers read sentences containing a verb ending with /t/ followed by a noun starting with /t/. These /t#t/ sequences were typically realized as one /t:/ with a long intraoral pressure plateau...
March 2017: Journal of the Acoustical Society of America
https://www.readbyqxmd.com/read/28372097/automated-setup-for-ex-vivo-larynx-experiments
#8
Veronika Birk, Michael Döllinger, Alexander Sutor, David A Berry, Dominik Gedeon, Maximilian Traxdorf, Olaf Wendler, Christopher Bohr, Stefan Kniesburges
Ex vivo larynx experiments are limited in time due to degeneration of the laryngeal tissues. In order to acquire a significant and comparable amount of data, automatization of current manual experimental procedures is desirable. A computer controlled, electro-mechanical setup was developed for time-dependent variation of specific physiological parameters, including adduction and elongation level of the vocal folds and glottal flow. The setup offers a standardized method to induce defined forces on the laryngeal cartilages...
March 2017: Journal of the Acoustical Society of America
https://www.readbyqxmd.com/read/28372071/the-role-of-vocal-tract-and-subglottal-resonances-in-producing-vocal-instabilities
#9
Laura Wade, Noel Hanna, John Smith, Joe Wolfe
During speech and singing, the vibrating vocal folds are acoustically loaded by resonant ducts upstream (the trachea) and downstream (the vocal tract). Some models suggest that the vocal fold vibration (at frequency fo) is more stable at frequencies below that of a vocal tract resonance, so that the downstream load is inertive (mass-like). If so, vocal fold vibration might become unstable when fo and resonance frequencies "cross over" and the load varies rapidly in phase and magnitude. In one experiment, singers produced a slow diphthong at constant pitch, thus shifting the first tract resonance R1 across fixed fo...
March 2017: Journal of the Acoustical Society of America
https://www.readbyqxmd.com/read/28366247/whisper-and-phonation-aerodynamic-comparisons-across-adduction-and-loudness
#10
Ramya Konnai, Ronald C Scherer, Amy Peplinski, Kenneth Ryan
INTRODUCTION: Whisper is known to be produced by different speakers differently, especially with respect to glottal configuration that influences glottal aerodynamics. Differences in whisper production and phonation types imply important linguistic information in many languages, are identified in vocal pathologies, are used to communicate mood and emotion, and are used in vocal performance. OBJECTIVE: The present study focused on investigating the aerodynamic differences between whisper and phonation at different loudness and adduction levels...
March 30, 2017: Journal of Voice: Official Journal of the Voice Foundation
https://www.readbyqxmd.com/read/28363712/partial-cricotracheal-resection-for-severe-upper-tracheal-stenosis-potential-impacts-on-the-outcome
#11
Ahmed Musaad Abd El-Fattah, Hisham Atef Ebada, Hazem Emam Amer, Mohammed Mohammed Abosamra, Ali Tawfik
OBJECTIVE: The aim of this study was to investigate the potential impact of multiple preoperative and intraoperative variables on the outcome of partial cricotracheal resection and tracheal resection anastomosis (PCTR/TRA). METHODS: The study was conducted on 35 consecutive patients of grade III and IV upper tracheal stenosis with or without subglottic involvement. The indication of PCTR/TRA was post intubation stenosis in all patients. Overall complications (major and minor) occurred in 18 patients...
March 28, 2017: Auris, Nasus, Larynx
https://www.readbyqxmd.com/read/28362037/silicone-stents-save-lives-without-surgery-in-postintubation-subglottic-stenosis
#12
Levent Dalar, Ayten Saracoglu, Kemal T Saracoglu
No abstract text is available yet for this article.
2017: Anaesthesiology Intensive Therapy
https://www.readbyqxmd.com/read/28347616/the-overdrive-mode-in-the-complete-vocal-technique-a-preliminary-study
#13
Johan Sundberg, Maddalena Bitelli, Annika Holmberg, Ville Laaksonen
"Complete Vocal Technique," or CVT, is an internationally widespread method for teaching voice. It classifies voicing into four types, referred to as "vocal modes," one of which is called "Overdrive." The physiological correlates of these types are unclear. This study presents an attempt to analyze its voice source and formant frequency characteristics. A male and a female expert of CVT sang a set of "Overdrive" and falsetto tones on the syllable /pᴂ/. The voice source could be analyzed by inverse filtering in the case of the male subject...
March 24, 2017: Journal of Voice: Official Journal of the Voice Foundation
https://www.readbyqxmd.com/read/28325676/sedation-and-subglottic-stenosis-in-critically-ill-children
#14
Steven L Shein, Alexandre T Rotta
No abstract text is available yet for this article.
March 19, 2017: Jornal de Pediatria
https://www.readbyqxmd.com/read/28318970/transcricothyroid-endoscopic-subglottic-surgery-for-posterior-glottic-stenosis-a-case-report
#15
Koji Matsushima, Kentaro Matsuura, Teppei Takeda, Yuko Sasaki, Akira Fukuo, Kota Wada, Yusuke Watanabe
Posterior glottic stenosis (PGS) is a rare but life-threatening condition mostly caused by damage to the interarytenoid mucosa by an endotracheal tube. In surgical treatment of PGS, airway patency is prioritized, and the laryngeal functions involved in swallowing and phonation are considerably sacrificed. In the majority of cases, lateralization of a vocal fold or partial excision of a vocal fold and arytenoid cartilage results in glottal closure insufficiency and deterioration of phonatory function. We present the first report of transcricothyroid endoscopic subglottic surgery to treat a 46-year-old man with PGS who was intubated for 10 days...
March 16, 2017: Journal of Voice: Official Journal of the Voice Foundation
https://www.readbyqxmd.com/read/28318198/-subglottic-stenosis-as-the-initial-manifestation-of-wegener-s-granulomatosis-in-a-teenager-case-report
#16
Giselle Cuestas, Verónica Rodríguez, Flavia Doormann, Alejandra Pringe, Patricio Bellia Munzón, Gastón Bellia Munzón, Carlos Ortega, Rubén Álvarez
Wegener's granulomatosis is a necrotizing granulomatous vasculitis of autoimmune origin that primarily affects the upper and lower airways and kidneys. It is very rare in children and adolescents. When started at a young age it is often associated with subglottic stenosis. Subglottic stenosis is a potentially fatal manifestation of Wegener's granulomatosis. Its diagnosis requires a high index of suspicion since it might develop in the absence of other signs of activity. Occasionally, subglottic stenosis may present as the initial manifestation of the disease...
April 1, 2017: Archivos Argentinos de Pediatría
https://www.readbyqxmd.com/read/28306197/pediatric-upper-airway-dimensions-using-three-dimensional-computed-tomography-imaging
#17
Tariq M Wani, Mahmood Rafiq, Salman Talpur, Lahbib Soualmi, Joseph D Tobias
INTRODUCTION: Computed tomography- (CT) and magnetic resonance imaging (MRI)-based measurements have recently suggested that the narrowest dimension of the pediatric airway is the subglottic region. These data are contrary to the previously held tenets of a funnel- or conical-shaped airway. The current study evaluates airway volumes and shapes using three-dimensional CT images of the air way column in spontaneously breathing children. METHODS: The study included CT-based radiological images of the neck in children who required imaging unrelated to airway symptomatology...
March 17, 2017: Paediatric Anaesthesia
https://www.readbyqxmd.com/read/28295337/use-of-a-urology-stone-basket-for-removal-of-subglottic-foreign-bodies
#18
Lindsay Sobin, David Roberson, Karen Watters
No abstract text is available yet for this article.
March 14, 2017: Laryngoscope
https://www.readbyqxmd.com/read/28277485/flexible-co2-laser-treatment-for-subglottic-stenosis
#19
Rasit Cevizci, Alper Dilci, Ilknur Haberal Can, Burak Kersin, Yildirim Bayazit
OBJECTIVES: To assess the efficacy and safety of flexible fiber CO2 laser surgery for subglottic stenosis and to present retrospective experience of 14 patients treated with flexible fiber CO2 laser system. To determine the characteristics, management protocols, prognostic factors, and postoperative outcomes of the sample. METHODS: Retrospective review of patients with subglottic stenosis undergoing flexible fiber CO2 laser surgery at the tertiary medical center...
March 8, 2017: Journal of Craniofacial Surgery
https://www.readbyqxmd.com/read/28277376/subglottic-stenosis-following-cardiac-surgery-with-cardiopulmonary-bypass-in-infants-and-children
#20
Katherine E Kruse, Prashant J Purohit, C Ross Cadman, Felice Su, Nima Aghaeepour, Gregory B Hammer
OBJECTIVES: To determine the 1) incidence of subglottic stenosis in infants and children following cardiac surgery with cardiopulmonary bypass and 2) risk factors associated with its development. DESIGN: Retrospective cohort study. SETTING: Tertiary children's hospital in California. PATIENTS: Infants and children who underwent cardiac surgery with cardiopulmonary bypass. INTERVENTIONS: Diagnosis of subglottic stenosis by tracheoscopy...
March 8, 2017: Pediatric Critical Care Medicine
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