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Airway Stents

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
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
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
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
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
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...
September 29, 2016: Annals of Otology, Rhinology, and Laryngology
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)
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
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
Sharon H Gnagi, David R White
PURPOSE OF REVIEW: To discuss current modalities of endoscopic airway management beyond balloon dilation therapy. RECENT FINDINGS: Advances continue to be made through technology and bioengineering with exciting potential in the pediatric airway. Smaller robots and instrumentation allow increased endoscopic surgical success. Biodegradable stents and bioengineered grafts are on the horizon for use in airway surgery. Dysphonia following airway reconstruction is of increasing recognition with new endoscopic treatments being performed...
September 15, 2016: Current Opinion in Otolaryngology & Head and Neck Surgery
Tore Amundsen, Sveinung Sørhaug, Håkon Olav Leira, Stig Sverre Tyvold, Thomas Langø, Tommy Hammer, Frode Manstad-Hulaas, Erney Mattsson
BACKGROUND: Malignant airway obstruction is a feared complication and will most probably occur more frequently in the future because of increasing cancer incidence and increased life expectancy in cancer patients. Minimal invasive treatment using airway stents represents a meaningful and life-saving palliation. We present a new removable airway stent for improved individualised treatment. METHODS: To our knowledge, the new airway stent is the world's first knitted and uncovered self-expanding metal stent, which can unravel and be completely removed...
2016: European Clinical Respiratory Journal
H Hoffmann, D Gompelmann, C P Heußel, H Dienemann, R Eberhardt
Patients with diffuse airway instability due to tracheobronchomalacia or excessive dynamic airway collapse are typically highly symptomatic, with marked dyspnoea, recurrent bronchopulmonary infections and excruciating intractable cough. Silicone stents achieve immediate symptom control, but are - due to the typical complications associated with stent treatment - usually not an option for long-term treatment. The aim of surgical intervention is definitive stabilisation of the trachea and of both main bronchi by posterior splinting of the Paries membranaceus with a polypropylene mesh...
September 2016: Zentralblatt Für Chirurgie
Hang Yu, Lijie Wang, Zhen Wu, Zhen Yang
Bronchoscopic lung volume reduction (BLVR) is a minimally invasive treatment for severe emphysema, providing treatment options for patients who are unable to undergo lung volume reduction surgery (LVRS) or lung transplantation. Current BLVR techniques include bronchoscopic volume reduction with valve implants, use of a lung volume reduction coil (LVRC), bronchoscopic thermal vapor ablation (BTVA), biological lung volume reduction (BioLVR), and use of airway bypass stents (ABS). To date, several randomized controlled trials of these bronchoscopic therapies have been conducted in patients with emphysema, and bronchoscopic volume reduction with valve implants remains the best approach thus far...
September 5, 2016: Bioscience Trends
Ihab Atallah, M Krishniah Manjunath, Ahmad Al Omari, Christian Adrien Righini, Paul F Castellanos
OBJECTIVES/HYPOTHESIS: To demonstrate that reconstructive transoral laser microsurgical (R-TLM) techniques can be used for the treatment of symptomatic laryngeal posterior glottic web-based stenosis (PGWS) in a large cohort of patients utilizing a postcricoid mucosal advancement flap (PCMAF). STUDY DESIGN: Retrospective cohort review. METHODS: A consecutive series of patients with PGWS who underwent R-TLM using a PCMAF were reviewed for outcomes...
August 24, 2016: Laryngoscope
Liping Zhao, Sumati Sundaram, Andrew V Le, Angela H Huang, Jiasheng Zhang, Go Hatachi, Arkadi Beloiartsev, Michael G Caty, Tai Yi, Katherine Leiby, Ashley Gard, Mehmet H Kural, Liqiong Gui, Kevin A Rocco, Amogh Sivarapatna, Elizabeth Calle, Allison Greaney, Luca Urbani, Panagiotis Maghsoudlou, Alan Burns, Paolo DeCoppi, Laura E Niklason
Here we report the creation of a novel tracheal construct in the form of an engineered, acellular tissue-stent biocomposite trachea (TSBT). Allogeneic or xenogeneic smooth muscle cells are cultured on polyglycolic acid polymer-metal stent scaffold leading to the formation of a tissue comprising cells, their deposited collagenous matrix, and the stent material. Thorough decellularization then produces a final acellular tubular construct. Engineered TSBTs were tested as end-to-end tracheal replacements in 11 rats and 3 nonhuman primates...
September 2016: Tissue Engineering. Part A
Xinwei Han, Lei Li, Yanshi Zhao, Chao Liu, Dechao Jiao, Kewei Ren, Gang Wu
BACKGROUND: Thoracogastric airway fistula (TGAF) is a rare and dangerous complication of esophagectomy performed for esophageal and cardiac carcinomas. Herein, we aimed to explore the feasibility and efficacy of individualized airway stent implantation for the treatment of TGAF after esophagectomy. METHODS: Based on different TGAF types and relevant data on chest computed tomography, customized airway-covered stents were positioned so as to cover the entrance to the fistula by an interventional radiologist using fluoroscopic guidance...
August 12, 2016: Surgical Endoscopy
Tomasz Gil, Janusz Warmus, Janusz Włodarczyk, Zbigniew Grochowski, Krzysztof Bederski, Piotr Kocoń, Piotr Talar, Jarosław Kużdżał
INTRODUCTION: Iatrogenic tracheobronchial injuries are rare. AIM: To analyse the mechanism of injury, symptoms and treatment of these patients. MATERIAL AND METHODS: Retrospective analysis of hospital records of all patients treated for main airway injuries between 1990 and 2012 was performed. RESULTS: There were 24 patients, including 21 women and 3 men. Mean time between injury and initiation of treatment was 12 hours (range: 2-48)...
June 2016: Kardiochirurgia i Torakochirurgia Polska, Polish Journal of Cardio-Thoracic Surgery
Levent Dalar, Seda Tural Önür, Cengiz Özdemir, Sinem Nedime Sökücü, Ahmet Levent Karasulu, Sedat Altin
BACKGROUND/AIM: Tracheobronchomalacia (TBM) leads to the obstruction of expiratory airflow and interference with secretion clearance. Stabilization of the airway wall using a silicon stent or laser coagulation of the posterior wall may be treatment options. This study aimed to retrospectively analyze which interventional bronchoscopic method could be used to provide airway stabilization and gain control of symptoms and for whom this method could be used. MATERIALS AND METHODS: Fifteen patients who had received treatment in our interventional pulmonology unit were analyzed...
2016: Turkish Journal of Medical Sciences
Jaime Penchyna Grub, Enrique Ortíz Hernández, Gustavo Teyssier Morales, Ivan Rivas Rivera, Diego Preciado, Hiram Álvarez-Neri
BACKGROUND AND OBJECTIVE: Severe laryngotracheal stenosis in childhood poses a complex surgical challenge for specialists in airway surgery. Patients with severe subglottic stenosis with vocal cord involvement are particularly difficult to manage successfully. The goal of this work was to review our experience with extended CTR in a cohort of young children with severe SGS and determine which clinical parameters would be associated with surgical success. METHODS: Retrospective analysis of the outcome of consecutive patients with severe glottic-subglottic stenosis submitted to an extended double-stage CTR between 2004 and 2014 at a large tertiary referral center...
September 2016: International Journal of Pediatric Otorhinolaryngology
Jad Kebbe, Abdul H Alraiyes, Samjot S Dhillon, Kassem Harris
No abstract text is available yet for this article.
July 2016: Journal of Bronchology & Interventional Pulmonology
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