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Laryngotracheal stenosis

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https://www.readbyqxmd.com/read/28715559/interferon-%C3%AE-treatment-of-human-laryngotracheal-stenosis-derived-fibroblasts
#1
Kevin Motz, Idris Samad, Linda X Yin, Michael K Murphy, Madhavi Duvvuri, Dacheng Ding, Alexander T Hillel
Importance: Laryngotracheal stenosis (LTS) is a fibroproliferative disorder of the glottis, subglottis, and trachea. In models of fibrosis from other organ systems, the CD4+ T-cell response has been shown to regulate extracellular matrix deposition. Specifically, helper T cell 2 (TH2) promotes fibrosis, whereas TH1 and associated cytokines have been shown to be antifibrotic. However, this antifibrotic effect of the TH1 response has not been demonstrated in LTS. Objective: To determine whether the TH1 cytokine interferon-γ inhibits the function of LTS-derived fibroblasts in vitro...
July 13, 2017: JAMA Otolaryngology—Head & Neck Surgery
https://www.readbyqxmd.com/read/28713710/the-healing-effect-of-conditioned-media-and-bone-marrow-derived-stem-cells-in-laryngotracheal-stenosis-a-comparison-in-experimental-dog-model
#2
Kamyar Iravani, Arash Sobhanmanesh, Mohammad Javad Ashraf, Seyed Basir Hashemi, Davood Mehrabani, Shahrokh Zare
BACKGROUND: Differences in causes, severities, areas of stenosis, and the association with swallowing and phonation of larynx and trachea can result into Laryngotracheal stenosis (LTS).This study evaluated the healing effect of bone marrow stem cells (BMSCs) in experimentally induced LTS dog model. METHODS: Seven dogs were enrolled. BMSCs were isolated from proximal humerus and shoulder of a dog and cultured in media containing alpha minimal essential medium, fetal bovine serum, penicillin and streptomycin, and L-glutamine...
May 2017: World Journal of Plastic Surgery
https://www.readbyqxmd.com/read/28675094/effect-of-increased-body-mass-index-on-complication-rates-during-laryngotracheal-surgery-utilizing-jet-ventilation
#3
Rachel A Barry, Daniel S Fink, Dusty Cole Pourciau, Kasey Hayley, Rachael Lanius, Schuylor Hayley, Eddy Sims, Andrew J McWhorter
Objective Jet ventilation has been used for >30 years as an anesthetic modality for laryngotracheal surgery. Concerns exist over increased risk with elevated body mass index (BMI). We reviewed our experience using jet ventilation for laryngotracheal stenosis to assess for complication rates with substratification by BMI. Study Design Case series with chart review. Setting Tertiary care center. Subjects and Methods A total of 126 procedures with jet ventilation were identified from October 2006 to December 2014...
June 1, 2017: Otolaryngology—Head and Neck Surgery
https://www.readbyqxmd.com/read/28638421/item-selection-and-content-validity-of-the-risk-factors-of-post-intubation-tracheal-stenosis-observation-questionnaire-for-icu-admitted-patients
#4
Roya Farzanegan, Behrooz Farzanegan, Maryam Alehashem, Mahdi Zangi, Sharareh R Niakan Kalhori, Kambiz Sheikhy, Habib Emami, Mohammad Behgam Shadmehr
BACKGROUND: Laryngotracheal stenosis as a late complication of prolonged endotracheal intubation is a life-threatening event. In order to determine the related risk factors for this complication, which may vary among different countries, designing a valid questionnaire is necessary. The aim of this study was to select the items and evaluate the face and content validities of a questionnaire developed for assessment of risk factors of post-intubation tracheal stenosis (PITS) in patients admitted in the intensive care unit...
2017: Tanaffos
https://www.readbyqxmd.com/read/28619544/changes-in-tracheostomy-and-intubation-related-tracheal-stenosis-implications-for-surgery
#5
Samuel S Kim, Zain Khalpey, Charles Hsu, Alex G Little
BACKGROUND: This study sought to identify the changing characteristic patterns and locations of stenosis after tracheostomy or intubation and to assess the risk factors associated with perioperative complication and restenosis after primary resection and reconstruction. METHODS: A retrospective review was performed (January /2012 to March 2015) on patients treated at the University of Arizona Medical Center (Tucson, Arizona) who had symptomatic tracheal stenosis secondary to prolonged intubation or tracheostomy...
June 13, 2017: Annals of Thoracic Surgery
https://www.readbyqxmd.com/read/28485188/quantification-of-inflammatory-markers-in-laryngotracheal-stenosis
#6
Kevin M Motz, Linda X Yin, Idris Samad, Dacheng Ding, Michael K Murphy, Madhavi Duvvuri, Alexander T Hillel
Objectives (1) Develop a novel method for serial assessment of gene and protein expression in laryngotracheal stenosis (LTS). (2) Assess cytokine expression and determine an immunophenotype in LTS. Study Design A matched comparison of endolaryngeal brush biopsy samples from laryngotracheal scar and normal airway. Setting Tertiary care hospital, 2015-2016. Methods Brush biopsy specimens of laryngotracheal scar and normal trachea were obtained from 17 patients with LTS at the time of operating room dilation and were used for protein and RNA extraction...
May 1, 2017: Otolaryngology—Head and Neck Surgery
https://www.readbyqxmd.com/read/28480810/traumatic-laryngotracheal-stenosis-treated-by-hyoid-sternohyoid-osseomuscular-flap-combined-with-xenogenic-acellular-dermal-matrix-a-case-report-and-literature-review
#7
Hang Yang, Zhe Chen, Shui-Hong Zhou, Qin-Yin Wang, Li-Xia Weng, Fang Wang, Ting-Ting Wu, Min-Li Zhou, Yang-Yang Bao
Objective The treatment of laryngotracheal stenosis is a major therapeutic challenge. Various treatments include observation, medical management, and surgical management. The most effective surgical management is resection and reconstruction. To the authors' knowledge, no reports have described the use of xenogenic acellular dermal matrix (ADM) for laryngotracheal stenosis. Methods A 27-year-old man presented with hemoptysis of the neck due to a traffic accident. Emergency orotracheal intubation was performed...
January 1, 2017: Journal of International Medical Research
https://www.readbyqxmd.com/read/28424763/airway-problems-in-neonates-a-review-of-the-current-investigation-and-management-strategies
#8
REVIEW
Quen Mok
Airway problems in the neonatal population are often life threatening and raise challenging issues in diagnosis and management. The airway problems can result from congenital or acquired lesions and can be broadly classified into those causing obstruction or those due to an abnormal "communication" in the airway. Many different investigations are now available to identify the diagnosis and quantify the severity of the problem, and these tests can be simple or invasive. Bronchography and bronchoscopy are essential to determine the extent and severity of the airway problem and to plan treatment strategy...
2017: Frontiers in Pediatrics
https://www.readbyqxmd.com/read/28349784/fibroblasts-in-hypoxic-conditions-mimic-laryngotracheal-stenosis
#9
Linda X Yin, Kevin M Motz, Idris Samad, Madhavi Duvvuri, Michael Murphy, Dacheng Ding, Alexander T Hillel
Objective To elucidate the role of hypoxia and inflammatory pathways in the pathogenesis of iatrogenic laryngotracheal stenosis (iLTS). Study Design (1) Examination of mucosal surface gene expression in human iLTS. (2) In vitro comparison of normal and scar laryngotracheal fibroblasts under normoxic and hypoxic conditions. Setting Tertiary care hospital in a research university (2012-2016). Subjects and Methods Brush biopsies were obtained from normal laryngotracheal tissue and scar in iLTS patients; gene expression was compared...
May 2017: Otolaryngology—Head and Neck Surgery
https://www.readbyqxmd.com/read/28287060/end-to-end-anastomosis-in-the-management-of-laryngotracheal-defects
#10
E D Gozen, M Yener, Z B Erdur, E Karaman
OBJECTIVE: To present clinical experience and surgical outcomes of end-to-end anastomosis in the management of laryngotracheal stenosis and tracheal defects following invasive thyroid malignancy resection. METHODS: A retrospective analysis was performed of 14 patients with laryngotracheal stenosis and tracheal invasive thyroid malignancy. All patients underwent tracheal or cricotracheal resection and primary end-to-end anastomosis. RESULTS: Length of stenosis was 1...
May 2017: Journal of Laryngology and Otology
https://www.readbyqxmd.com/read/28277335/voice-and-swallowing-outcomes-for-adults-undergoing-reconstructive-surgery-for-laryngotracheal-stenosis
#11
Gemma M Clunie, Andrew J Kinshuck, Gurpreet S Sandhu, Justin W G Roe
PURPOSE OF REVIEW: Adult laryngotracheal stenosis is a rare, multifactorial condition which carries a significant physical and psychosocial burden. Surgical approaches have developed in recent years, however, voice and swallowing function can be affected prior to treatment, in the immediate postoperative phase, and as an ongoing consequence of the condition and surgical intervention. In this study we discuss: the nature of the problem; surgical interventions to address airway disorders; optimal patterns of care to maximize voice and swallowing outcomes...
June 2017: Current Opinion in Otolaryngology & Head and Neck Surgery
https://www.readbyqxmd.com/read/28239579/neck-trauma-ent-prospects
#12
Kavita Sachdeva, Aparaajita Upadhyay
Neck trauma is a very important surgical emergency faced by ENT surgeons in day to day practice. They are potentially life threatening conditions due to the presence of many vital structures in this area. Timely presentation to the referral centre and proper multidisciplinary approach towards management plays a pivotal role in the healing pattern of the wound and prevention of serious complication like shock, sepsis, laryngeal stenosis or fistula formation. A retrospective study was done in ENT Department, NSCB Medical College, Jabalpur, Madhya Pradesh, India during the period of 2014-2016...
March 2017: Indian Journal of Otolaryngology and Head and Neck Surgery
https://www.readbyqxmd.com/read/28132084/pediatric-airway-surgery
#13
REVIEW
Kosaku Maeda
Pediatric airway surgery is a challenging field in pediatric surgery. Laryngotracheal stenosis has a variety of congenital and acquired conditions that require precise assessment and tailored treatment for each individual patient. About 90% of acquired conditions are represented by subglottic stenosis (SGS) resulting as a complication of tracheal intubation. Congenital tracheal stenosis (CTS) is a rare and life-threatening malformation, usually associated with complete tracheal rings along a variable length of the trachea...
April 2017: Pediatric Surgery International
https://www.readbyqxmd.com/read/28112014/laryngotracheal-stenosis-risk-factors-for-tracheostomy-dependence-and-dilation-interval
#14
Shekhar K Gadkaree, Vinciya Pandian, Simon Best, Kevin M Motz, Clint Allen, Young Kim, Lee Akst, Alexander T Hillel
Objective Laryngotracheal stenosis (LTS) is a fibrotic process that narrows the upper airway and has a significant impact on breathing and phonation. Iatrogenic injury from endotracheal and/or tracheostomy tubes is the most common etiology. This study investigates differences in LTS etiologies as they relate to tracheostomy dependence and dilation interval. Study Design Case series with chart review. Setting Single-center tertiary care facility. Subjects and Methods Review of adult patients with LTS was performed between 2004 and 2015...
February 2017: Otolaryngology—Head and Neck Surgery
https://www.readbyqxmd.com/read/28050205/tracheostomy-in-the-intensive-care-unit-a-university-hospital-in-a-developing-country-study
#15
Mohammad Waheed El-Anwar, Ahmad Abdel-Fattah Nofal, Mohammad A El Shawadfy, Ahmed Maaty, Alaa Omar Khazbak
Introduction Tracheostomy is the commonest surgical procedure in intensive care units (ICUs). It not only provides stable airway and facilitates pulmonary toilet and ventilator weaning, but also decreases the direct laryngeal injury of endotracheal intubation, and improves patient comfort and daily living activity. Objective The objective of this study is to assess the incidence, indications, timing, complications (early and late), and the outcome of tracheostomy on patients in the intensive care units (ICU) at a university hospital in a developing country...
January 2017: International Archives of Otorhinolaryngology
https://www.readbyqxmd.com/read/28018809/airway-management-via-laryngeal-mask-in-laryngotracheal-resection
#16
Patrick Zardo, Tom Kreft, Thomas Hachenberg
We present a case of impassable subglottic stenosis scheduled for tracheal resection and reconstruction managed by establishing a supraglottic airway. Despite careful preoperative evaluation, the stenosis was localized higher than anticipated, rendering conventional intubation impossible. Laryngeal mask bridging to cross-field ventilation was feasible and jet ventilation and cardiopulmonary bypass were available as emergency strategies. Surgery and emergence went uneventful. Perioperative considerations are discussed in this report...
December 2016: Thoracic and Cardiovascular Surgeon Reports
https://www.readbyqxmd.com/read/28012513/minimally-invasive-endoscopic-treatment-for-pediatric-combined-high-grade-stenosis-as-a-laryngeal-manifestation-of-epidermolysis-bullosa
#17
Dora Palinko, Vera Matievics, Ilona Szegesdi, Balazs Sztano, Laszlo Rovo
Epidermolysis bullosa refers to a clinically and genetically heterogeneous group of inherited mucocutaneous diseases. Laryngotracheal lesions are momentous regarding the risk of sudden airway obstruction. The traditional treatment is tracheostomy. This case report highlights the advantages of minimally invasive interventions. A successful combined endoscopic management of a life-threatening respiratory crisis is presented in a 4-year-old child. Combined commissure stenosis with supraglottic spread was treated by CO2 laser dissection and bilateral endoscopic arytenoid abduction lateropexy, supplemented with mitomycin C application...
January 2017: International Journal of Pediatric Otorhinolaryngology
https://www.readbyqxmd.com/read/28004261/the-therapy-with-ethosomes-containing-5-fluorouracil-for-laryngotracheal-stenosis-in-rabbit-models
#18
Xiaohui Mao, Xuefeng Cheng, Zheng Zhang, Zhaoyan Wang, Zhentao Wang
The aim of this study is to evaluate the efficacy of ethosomes encapsulated with 5-fluorouracil (5-FU) in treatment of laryngotracheal stenosis in rabbit models. The 5-FU ethosome was prepared by the thin film hydration method, and the amorphous, size distribution and the encapsulation efficiency was investigated. The tracheal mucosa were scraped about 0.5 cm with a nylon brush to induce the scar in airway grow, then models were divided into three groups: 5-FU ethosome group, 5-FU group and saline group, drug were injected into scar of every group by paracentesis guided under endoscope, respectively...
April 2017: European Archives of Oto-rhino-laryngology
https://www.readbyqxmd.com/read/27861938/voice-outcome-and-voice-related-quality-of-life-after-surgery-for-pediatric-laryngotracheal-stenosis
#19
Bas Pullens, Marieke Hakkesteegt, Hans Hoeve, Marieke Timmerman, Koen Joosten
OBJECTIVES: To evaluate the long-term outcome of voice quality and voice-related quality of life after open airway surgery for pediatric laryngotracheal stenosis. STUDY DESIGN: Prospective cohort study. METHODS: Children under the age of 18 years at time of follow-up and with a history of open airway surgery for acquired laryngotracheal stenosis were included in this analysis. To assess voice-related quality of life, the pediatric voice handicap (pVHI) index was completed by the patients' parents...
November 9, 2016: Laryngoscope
https://www.readbyqxmd.com/read/27861923/evaluating-the-utility-of-serological-testing-in-laryngotracheal-stenosis
#20
S Ryan Hall, Clint T Allen, Albert L Merati, Ross M Mayerhoff
OBJECTIVES/HYPOTHESIS: Whereas mechanical (traumatic) causes of laryngotracheal stenosis (LTS) are identified based on history, autoimmune laryngotracheal stenosis (aLTS) and idiopathic laryngotracheal stenosis (iLTS) are often more difficult to differentiate. The objective of this study was to evaluate serologic testing in a large cohort of nonmechanical LTS patients to determine which tests, if any, lead clinicians to the etiology of the LTS. STUDY DESIGN: Retrospective chart review...
June 2017: Laryngoscope
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