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Airway Stents

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https://www.readbyqxmd.com/read/27873529/tracheal-allotransplantation-and-regeneration
#1
P Delaere, M Molitor
Non-malignant and malignant obstruction of the tracheal airway causes significant morbidity and mortality. With increased use of artificial airways, benign and iatrogenic complications are increasing. A tracheal stenosis that is less than 5 cm in length can be resected with end-to-end anastomosis. Longer tracheal lesions can be treated in a palliative way by placement of a stent to secure airway lumen patency. The management of tracheal defects is an evolving field. Tracheal transplantation and tracheal regeneration may provide major treatment advances to cases with long-segment tracheal involvement...
2016: Acta Chirurgiae Plasticae
https://www.readbyqxmd.com/read/27863670/selection-and-fabrication-of-a-non-woven-polycarbonate-urethane-cover-for-a-tissue-engineered-airway-stent
#2
Weiluan Chen, Johanna Clauser, Anja Lena Thiebes, Donnacha J McGrath, Peter E McHugh, Ulrich Steinseifer, Stefan Jockenhoevel, Wim E Hennink, Robbert Jan Kok
One of the major problems in end-stage bronchotracheal cancer is stenosis of the upper airways, either due to luminal ingrowth of the tumor or mucus plugging. Airway stents that suppress tumor ingrowth and sustain mucociliary transport can alleviate these problems in end-stage bronchial cancer. We evaluated different types of polymeric covers for a tissue engineered airway stent. The distinguishing feature of this stent concept is that respiratory epithelial cells can grow on the luminal surface of the stent which facilitates mucociliary clearance...
November 30, 2016: International Journal of Pharmaceutics
https://www.readbyqxmd.com/read/27863648/biodegradable-airway-stents-in-infants-potential-life-threatening-pitfalls
#3
B Sztanó, G Kiss, K Márai, G Rácz, I Szegesdi, K Rácz, G Katona, L Rovó
OBJECTIVE: The solution of severe tracheobronchial obstructions in early childhood means a great challenge. Biodegradable stents were intended to be a minimally invasive temporary solution which may decrease the number of interventions and limit the possible complications of stenting procedures. However, our first experiences have brought out a new, - especially in childhood - potentially life-threatening complication of this concept. METHODS: Five SX-ELLA biodegradable polydioxanone stents was applied in three patients because of severe tracheobronchial obstruction: congenital tracheomalacia (7 day-old), acquired tracheomalacia (10 month-old), and congenital trachea-bronchomalacia (10 month-old)...
December 2016: International Journal of Pediatric Otorhinolaryngology
https://www.readbyqxmd.com/read/27847813/jet-ventilation-during-rigid-bronchoscopy-in-adults-a-focused-review
#4
REVIEW
Laurie Putz, Alain Mayné, Anne-Sophie Dincq
The indications for rigid bronchoscopy for interventional pulmonology have increased and include stent placements and transbronchial cryobiopsy procedures. The shared airway between anesthesiologist and pulmonologist and the open airway system, requiring specific ventilation techniques such as jet ventilation, need a good understanding of the procedure to reduce potentially harmful complications. Appropriate adjustment of the ventilator settings including pause pressure and peak inspiratory pressure reduces the risk of barotrauma...
2016: BioMed Research International
https://www.readbyqxmd.com/read/27829946/double-stenting-for-malignant-oesophago-respiratory-fistula
#5
Janusz Włodarczyk, Jarosław Kużdżał
INTRODUCTION: The close anatomical relationship between the oesophagus and bronchial tree results in formation of an oesophago-respiratory fistula in a subset of patients with advanced oesophageal or lung cancer. In those patients stenting of both the oesophagus and tracheobronchial tree is a valid option of palliative treatment. AIM: To determine the effectiveness, tolerance, quality of life, safety and survival after double stenting procedures. MATERIAL AND METHODS: Retrospective analysis of a prospectively collected database was performed, concerning consecutive patients with oesophago-respiratory fistulas treated with double stenting...
2016: Wideochirurgia i Inne Techniki Mało Inwazyjne, Videosurgery and Other Miniinvasive Techniques
https://www.readbyqxmd.com/read/27794574/short-term-use-of-uncovered-self-expanding-metallic-airway-stents-for-severe-expiratory-central-airway-collapse
#6
Adnan Majid, Daniel Alape, Fayez Kheir, Erik Folch, Sebastian Ochoa, Alejandro Folch, Sidhu P Gangadharan
BACKGROUND: Patients with severe symptomatic expiratory central airway collapse (ECAC) undergo a stent trial to determine whether they are candidate for tracheobronchoplasty. Most stent trials were done using silicone stents. However, there was a higher number of silicone stent-related complications. OBJECTIVES: The aim of this study was to evaluate the safety and efficacy of short-term uncovered self-expanding metallic airway stents (USEMAS) in patients with ECAC...
2016: Respiration; International Review of Thoracic Diseases
https://www.readbyqxmd.com/read/27793496/congenital-nasal-cavity-stenosis-in-children-with-craniosyntosis-a-report-of-4-rare-cases
#7
Yew Toong Liew, Siew Shuin Soo, Anna Marie Nathan, Anura Michelle Manuel
Congenital bony nasal stenosis (CBNS) is a very rare but life-threatening cause of airway obstruction in neonates and infants. This review aims to assess the presentation and early airway management of 4 new cases of craniosynostosis with bilateral nasal cavity stenosis. Patients were treated with endoscopic endonasal widening of the nasal cavity and stenting. All patients were extubated well post-operatively with resolution of symptoms. They remained asymptomatic with stents in situ for at least 6 months with no complications reported...
October 25, 2016: Auris, Nasus, Larynx
https://www.readbyqxmd.com/read/27784411/interventional-drug-induced-sleep-endoscopy-a-novel-technique-to-guide-surgical-planning-for-obstructive-sleep-apnea
#8
Andrew Jacob Victores, Krista Olson, Masayoshi Takashima
STUDY OBJECTIVE: One of the challenges of surgery for obstructive sleep apnea (OSA) is identifying the correct surgical site for each patient. The objective of this study was to use drug-induced sleep endoscopy (DISE) and nasopharyngeal tube (NPT) placement to determine the effect of eliminating palatal collapse on the obstruction seen on other segments of the upper airway. METHODS: Forty-one OSA patients were enrolled in this prospective study. All patients had a polysomnogram followed by DISE...
October 20, 2016: Journal of Clinical Sleep Medicine: JCSM: Official Publication of the American Academy of Sleep Medicine
https://www.readbyqxmd.com/read/27777507/fully-covered-metallic-stents-for-the-treatment-of-benign-airway-stenosis
#9
Caroline Dahlqvist, Sebahat Ocak, Maximilien Gourdin, Anne Sophie Dincq, Laurie Putz, Jean-Paul d'Odémont
Introduction. We herein report our experience with new fully covered self-expanding metallic stents in the setting of inoperable recurrent benign tracheobronchial stenosis. Methods. Between May 2010 and July 2014, 21 Micro-Tech® FC-SEMS (Nanjing Co., Republic of Korea) were placed in our hospital in 16 patients for inoperable, recurrent (after dilatation), and symptomatic benign airway stenosis. Their medical files were retrospectively reviewed in December 2014, with focus on stent's tolerance and durability data...
2016: Canadian Respiratory Journal: Journal of the Canadian Thoracic Society
https://www.readbyqxmd.com/read/27777440/balloon-expandable-metallic-stents-for-airway-diseases
#10
Takashi Ohki, Seiichiro Sugimoto, Takeshi Kurosaki, Shinji Otani, Kentaroh Miyoshi, Masaomi Yamane, Shinichiro Miyoshi, Takahiro Oto
Stent placement is an essential treatment for airway diseases. Although self-expandable metallic stents and silicone stents are commonly applied for the treatment of airway diseases, these stents are unsuitable for the treatment of small airway diseases encountered in pediatric patients and lung transplant recipients with airway complications. Currently, only vascular balloon-expandable metallic stents are available for the treatment of small airway diseases; however, little research has been conducted on the use of these stents in this field...
October 2016: Acta Medica Okayama
https://www.readbyqxmd.com/read/27776743/open-airway-reconstruction-in-adults-outcomes-and-prognostic-factors
#11
Marianne Abouyared, Mikhaylo Szczupak, Eric Barbarite, Zoukaa B Sargi, David E Rosow
PURPOSE: The purpose was to assess the success of open tracheal resection and re-anastomosis for non-malignant tracheal stenosis in adults. Successful operations were defined as T-tube or tracheostomy-free status by 6months post-operatively. MATERIALS AND METHODS: Retrospective chart review was performed and data were recorded in a de-identified manner. The primary outcome was T-tube or tracheostomy-free status by 6months following tracheal resection. Clinical and demographic characteristics were evaluated as potential prognostic variables...
September 7, 2016: American Journal of Otolaryngology
https://www.readbyqxmd.com/read/27766714/clinical-significance-of-differentiating-post-intubation-and-post-tracheostomy-tracheal-stenosis
#12
Beomsu Shin, Kang Kim, Byeong-Ho Jeong, Jung Seop Eom, Won Jun Song, Hyung Koo Kang, Hojoong Kim
BACKGROUND AND OBJECTIVE: Post-intubation tracheal stenosis (PITS) and post-tracheostomy tracheal stenosis (PTTS) are serious complications in mechanically ventilated patients. Although the aetiologies and mechanisms of PITS and PTTS are quite different, little is known about the clinical impact of differentiating one from the other. METHODS: We retrospectively conducted a chart review of 117 patients with PITS and 88 patients with PTTS who were treated with interventional bronchoscopy at Samsung Medical Center between January 2004 and December 2013...
October 21, 2016: Respirology: Official Journal of the Asian Pacific Society of Respirology
https://www.readbyqxmd.com/read/27764011/formation-of-obstructive-fibrinous-pseudomembrane-following-self-expanding-metallic-airway-stent-placement
#13
Valliappan Muthu, Inderpaul S Sehgal, Sahajal Dhooria, Amanjit Bal, Ritesh Agarwal
No abstract text is available yet for this article.
October 2016: Journal of Bronchology & Interventional Pulmonology
https://www.readbyqxmd.com/read/27751243/repair-of-large-airway-defects-with-bioprosthetic-materials
#14
Brooks V Udelsman, Jessica Eaton, Ashok Muniappan, Christopher R Morse, Cameron D Wright, Douglas J Mathisen
OBJECTIVE: Patients with complicated airway defects that exceed the limits of primary repair represent a challenging clinical problem and require alternative techniques for repair. The aim of this study was to evaluate bioprosthetic reconstruction of large tracheal and bronchial defects. METHODS: Retrospective chart review of patients treated at a single tertiary center from 2008 to 2015 who underwent repair of tracheal or bronchial defects with a bioprosthetic device, namely aortic homograft or acellular dermal matrix...
November 2016: Journal of Thoracic and Cardiovascular Surgery
https://www.readbyqxmd.com/read/27744319/residual-tracheobronchial-malacia-after-surgery-for-vascular-compression-in-children-treatment-with-stenting%C3%A2
#15
Paola Serio, Raffaella Nenna, Valentina Fainardi, Laura Grisotto, Annibale Biggeri, Roberto Leone, Luigi Arcieri, Marco Di Maurizio, Denise Colosimo, Roberto Baggi, Bruno Murzi, Lorenzo Mirabile, Fabio Midulla
OBJECTIVES: Surgery for vascular anomalies can occasionally fail to relieve symptoms, especially when severe tracheobronchial malacia persists. We studied outcomes in children who underwent airway stenting for severe post-surgical airway malacia and tested known clinical and surgical prognostic factors. METHODS: Among 257 children evaluated for tracheobronchial vascular compression, we reviewed the clinical charts for the 59 patients (23%) who underwent surgery...
October 15, 2016: European Journal of Cardio-thoracic Surgery
https://www.readbyqxmd.com/read/27713197/-anastomotic-airway-complications-after-lung-transplantation
#16
Go Hatachi, Takuro Miyazaki, Naoya Yamasaki, Tomoshi Tsuchiya, Keitaro Matsumoto, Ryotaro Kamohara, Ryoichiro Doi, Takeshi Nagayasu
Anastomotic airway complications still remain an important issue after lung transplantation. Most of the complications are stenosis and anastomotic leakage. Stent insertion is one option for the stenosis. We review the anastomotic airway complications and report our recent experience of stent insertion using 3-dimensional printed airway model.
October 2016: Kyobu Geka. the Japanese Journal of Thoracic Surgery
https://www.readbyqxmd.com/read/27694536/laryngotracheal-stenosis-in-children-and-infants-with-neurological-disorders-management-and-outcome
#17
Richard Nicollas, Eric Moreddu, Claire Le Treut-Gay, Stéphane Roman, Julien Mancini, Jean-Michel Triglia
INTRODUCTION: The goal of this retrospective study is to compare the management and outcome of surgical treatment of laryngotracheal stenosis in children and infants with and without an associated neurological disorder. PATIENTS AND METHOD: In a series of children operated on for subglottic stenosis (SGS), patients with an associated neurological disorder were identified. The following criteria were compared in children with and without neurological disease: grade of stenosis, age, technique (Crico-Tracheal Resection (CTR), Laryngo-Tracheo-Plasty (LTP) in single and 2 stage, laser), analyzing duration, preoperative tracheostomy, decannulation rate, preoperative gastrostomy, and number of days in intensive care unit and in hospital...
December 2016: Annals of Otology, Rhinology, and Laryngology
https://www.readbyqxmd.com/read/27684818/chest-ct-with-iterative-reconstruction-algorithms-for-airway-stent-evaluation-in-patients-with-malignant-obstructive-tracheobronchial-diseases
#18
Tingting Li, Yonggao Zhang, Yadong Wang, Jianbo Gao, Yan Jiang
The aim of the study was to investigate the image quality of low-dose CT images with different reconstruction algorithms including filtered back projection (FBP), hybrid iterative reconstruction (HIR), and iterative model reconstruction (IMR) algorithms by comparison of routine dose images with FBP reconstruction, in patients with malignant obstructive tracheobronchial diseases.In total, 60 patients (59 ± 9.3 years, 37 males) with airway stent who are randomly assigned into 2 groups (routine-dose [RD] and low-dose [LD] group, 30 for each) underwent chest CT on a 256-slice CT (RD-group 120 kV, 250 mAs, LD-group 120 kV, 120 mAs)...
September 2016: Medicine (Baltimore)
https://www.readbyqxmd.com/read/27679445/pulmostent-in-vitro-to-in-vivo-evaluation-of-a-tissue-engineered-endobronchial-stent
#19
Anja Lena Thiebes, Nicola Kelly, Caoimhe A Sweeney, Donnacha J McGrath, Johanna Clauser, Kathrin Kurtenbach, Valentine N Gesche, Weiluan Chen, Robbert Jan Kok, Ulrich Steinseifer, Mark Bruzzi, Barry J O'Brien, Peter E McHugh, Stefan Jockenhoevel, Christian G Cornelissen
Currently, there is no optimal treatment available for end stage tumour patients with airway stenosis. The PulmoStent concept aims on overcoming current hurdles in airway stenting by combining a nitinol stent with a nutrient-permeable membrane, which prevents tumour ingrowth. Respiratory epithelial cells can be seeded onto the cover to restore mucociliary clearance. In this study, a novel hand-braided dog bone stent was developed, covered with a polycarbonate urethane nonwoven and mechanically tested. Design and manufacturing of stent and cover were improved in an iterative process according to predefined requirements for permeability and mechanical properties and finally tested in a proof of concept animal study in sheep for up to 24 weeks...
September 27, 2016: Annals of Biomedical Engineering
https://www.readbyqxmd.com/read/27645990/a-novel-method-for-insertion-of-the-straight-metallic-tracheal-stent
#20
Kuruswamy Thurai Prasad, Babu Ram, Inderpaul Singh Sehgal, Sahajal Dhooria, Ritesh Agarwal
A straight metallic tracheal stent can be inserted either during flexible or rigid bronchoscopy. However, in patients with significant airway obstruction or those requiring tumor debulking, rigid bronchoscopy is the method of choice. A tracheoscope size 12 or larger is generally required for the introduction of the straight metallic tracheal stent. Herein, we describe a novel method that facilitates the introduction of the straight metallic tracheal stent through a size 8.5 tracheoscope by using the introducer tube of the silicone stent applicator...
October 2016: Annals of Thoracic Surgery
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