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Tracheobronchial stents

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https://www.readbyqxmd.com/read/28538020/incidence-and-risk-factors-of-hypoxemia-during-interventional-rigid-bronchoscopy-under-spontaneous-assisted-ventilation
#1
Saowapark Chumpathong, Jamsak Tscheikuna, Thanatporn Boonsombat, Saipin Muangman, Choopong Luansritisakul
BACKGROUND: Interventional rigid bronchoscopy for tracheobronchial stenosis can be performed under total intravenous anesthesia and spontaneous-assisted ventilation. Intraoperative hypoxemia can occur during this procedure, but the incidence and risk factors have not yet been determined. MATERIALS AND METHODS: Medical records of patients who underwent rigid bronchoscopy for the treatment of tracheobronchial stenosis under total intravenous anesthesia and spontaneous-assisted ventilation during the study period from January 2011 to December 2012 were retrospectively reviewed...
May 19, 2017: Journal of Bronchology & Interventional Pulmonology
https://www.readbyqxmd.com/read/28421364/an-ovine-in-vivo-framework-for-tracheobronchial-stent-analysis
#2
Donnacha J McGrath, Anja Lena Thiebes, Christian G Cornelissen, Mary B O'Shea, Barry O'Brien, Stefan Jockenhoevel, Mark Bruzzi, Peter E McHugh
Tracheobronchial stents are most commonly used to restore patency to airways stenosed by tumour growth. Currently all tracheobronchial stents are associated with complications such as stent migration, granulation tissue formation, mucous plugging and stent strut fracture. The present work develops a computational framework to evaluate tracheobronchial stent designs in vivo. Pressurised computed tomography is used to create a biomechanical lung model which takes into account the in vivo stress state, global lung deformation and local loading from pressure variation...
April 19, 2017: Biomechanics and Modeling in Mechanobiology
https://www.readbyqxmd.com/read/28323735/covered-balloon-expanding-stents-in-airway-stenosis
#3
Adnan Majid, Fayez Kheir, Jey Chung, Daniel Alape, Bryan Husta, Scott Oh, Erik Folch
BACKGROUND: The balloon-expanding stents are widely available but rarely described for use within the tracheobronchial tree. This report describes our experience with these stents in airway stenosis particularly as a lobar salvage therapy. METHODS: This was a retrospective review of all records in which the balloon-expanding stents were used at a tertiary medical center. Ages, sex, location of stenosis, etiology of stenosis, stent size, duration of stent placement and associated interventions for airway stenosis were recorded...
April 2017: Journal of Bronchology & Interventional Pulmonology
https://www.readbyqxmd.com/read/28255780/successful-adjustment-for-self-expanding-metallic-stent-migration-using-a-flexible-bronchoscope-with-two-biopsy-forceps-technique
#4
Remi Yoneyama, Hisashi Saji, Yojiro Makino, Yasufumi Kato, Naohiro Kajiwara, Tatsuo Ohira, Norihiko Ikeda
Although tracheobronchial stents are widely used for tracheal obstruction due to malignant or benign stenosis, stent migration has been reported as a major postoperative complication. A self-expandable metallic stent (SEMS) is more easily introduced compared with silicone stents. However, it is also difficult to remove or replace without complications. We report a new technique for successful SEMS adjustment using a flexible bronchoscope with two biopsy forceps.
March 2, 2017: General Thoracic and Cardiovascular Surgery
https://www.readbyqxmd.com/read/28237950/emergency-cricothyroidotomy-following-tracheobronchial-stenting
#5
Simon Robert Cavinato, Mike Denning, Brendan P Madden
A man aged 51 years was referred for tracheobronchial stenting after a poorly differentiated oesophageal carcinoma had progressed to cause stridor. Bronchoscopy revealed a left vocal cord palsy and tumour infiltration into the trachea. A tracheobronchial stent was placed, and after distal migration was endoscopically resited. Returning from theatre, the patient developed severe upper airway obstruction that progressed to cause CO2 narcosis and loss of consciousness. A rapid sequence induction was initiated, and a Glidescope revealed bilateral vocal cord palsy with severe oedema causing an inability to pass a tube or stylet...
February 24, 2017: BMJ Case Reports
https://www.readbyqxmd.com/read/28197412/bronchoscopic-diagnosis-and-treatment-of-primary-tracheobronchial-amyloidosis-a-retrospective-analysis-from-china
#6
Xiaoxiao Lu, Bixiu He, Ge Wang, Baimei He, Lijing Wang, Qiong Chen
Objective. To assess the value of bronchoscopy in the diagnosis and treatment of primary tracheobronchial amyloidosis (TBA), in order to reduce misdiagnosis rates and improve prognosis. Methods. Clinical data of 107 patients with TBA reported from 1981 to 2015 in China were retrospectively analyzed for clinical features, bronchoscopic manifestations, pathologies, treatments, and outcomes. Results. 105 of 107 TBA patients were pathologically confirmed by bronchoscopy. Main bronchoscopic manifestations of TBA were single or multiple nodules and masses within tracheobronchial lumens; local or diffuse luminal stenosis and obstruction; luminal wall thickening and rigidity; rough or uneven inner luminal walls; congestion and edema of mucosa, which was friable and prone to bleeding upon touch; and so forth...
2017: BioMed Research International
https://www.readbyqxmd.com/read/28186233/residual-tracheobronchial-malacia-after-surgery-for-vascular-compression-in-children-treatment-with-stenting
#7
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
No abstract text is available yet for this article.
February 1, 2017: European Journal of Cardio-thoracic Surgery
https://www.readbyqxmd.com/read/28181964/covered-balloon-expanding-stents-in-airway-stenosis
#8
Adnan Majid, Fayez Kheir, Jey Chung, Daniel Alape, Bryan Husta, Scott Oh, Erik Folch
BACKGROUND: The balloon-expanding stents are widely available but rarely described for use within the tracheobronchial tree. This report describes our experience with these stents in airway stenosis particularly as a lobar salvage therapy. METHODS: This was a retrospective review of all records in which the balloon-expanding stents were used at a tertiary medical center. Ages, sex, location of stenosis, etiology of stenosis, stent size, duration of stent placement and associated interventions for airway stenosis were recorded...
February 8, 2017: Journal of Bronchology & Interventional Pulmonology
https://www.readbyqxmd.com/read/27863648/biodegradable-airway-stents-in-infants-potential-life-threatening-pitfalls
#9
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/27829946/double-stenting-for-malignant-oesophago-respiratory-fistula
#10
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/27815411/a-conical-self-expanding-metallic-stent-for-the-management-of-critical-complex-tracheobronchial-malignant-stenosis
#11
Alfonso Fiorelli, Umberto Caterino, Antonio Raucci, Mario Santini
Tracheobronchial malignant stenosis is a life-threatening and challenging condition. In inoperable patients, a stent is the mainstay treatment to ensure ventilation. Here, we report the use of a fully covered standard conical self-expandable metallic stent as an emergency treatment for complex tracheobronchial malignant stenosis.
November 3, 2016: Interactive Cardiovascular and Thoracic Surgery
https://www.readbyqxmd.com/read/27777507/fully-covered-metallic-stents-for-the-treatment-of-benign-airway-stenosis
#12
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/27744319/residual-tracheobronchial-malacia-after-surgery-for-vascular-compression-in-children-treatment-with-stenting%C3%A2
#13
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/27684818/chest-ct-with-iterative-reconstruction-algorithms-for-airway-stent-evaluation-in-patients-with-malignant-obstructive-tracheobronchial-diseases
#14
COMPARATIVE STUDY
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/27672454/bronchoesophageal-fistula-stenting-using-high-frequency-jet-ventilation-and-underwater-seal-gastrostomy-tube-drainage
#15
Nitish Fokeerah, Xinwei Liu, Yonggang Hao, Lihua Peng
Managing a patient scheduled for bronchoesophageal fistula repair is challenging for the anesthetist. If appropriate ventilation strategy is not employed, serious complications such as hypoxemia, gastric distension, and pulmonary aspiration can occur. We present the case of a 62-year-old man with a bronchoesophageal fistula in the left main stem bronchus requiring the insertion of a Y-shaped tracheobronchial stent through a rigid bronchoscope, under general anesthesia. We successfully managed this intervention and herein report this case to demonstrate the effectiveness of underwater seal gastrostomy tube drainage used in conjunction with high-frequency jet ventilation during bronchoesophageal fistula stenting...
2016: Case Reports in Anesthesiology
https://www.readbyqxmd.com/read/27516782/iatrogenic-injuries-to-the-trachea-and-main-bronchi
#16
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
https://www.readbyqxmd.com/read/27454478/lung-abscess-causing-airway-obstruction-requiring-temporary-tracheobronchial-stenting
#17
LETTER
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
https://www.readbyqxmd.com/read/27450368/management-of-life-threatening-tracheal-stenosis-and-tracheomalacia-in-patients-with-mucopolysaccharidoses
#18
Christoph Kampmann, Christiane M Wiethoff, Ralf G Huth, Gundula Staatz, Eugen Mengel, Michael Beck, Stefan Gehring, Torsten Mewes, Tariq Abu-Tair
Several different lysosomal storage diseases, mainly mucopolysaccharidosis (MPS) type I, II, and VI, are complicated by severe obstruction of the upper airways, tracheobronchial malacia, and/or stenosis of the lower airways. Although enzyme replacement therapies (ERTs) are available, the impact of these on tracheobronchial alterations has not been reported. By extending the life expectancy of MPS patients with ERTs, airway problems may become more prevalent at advanced ages. These airway abnormalities can result in severe, potentially fatal, difficulties during anesthetic procedures...
2017: JIMD Reports
https://www.readbyqxmd.com/read/27444409/covered-airway-stent-placement-for-malignant-tracheobronchial-strictures-in-patients-with-an-endotracheal-tube
#19
M J Kim, J H Shin, J-H Park, J H Kim, H-Y Song, J Park, Y C Cho, S H Kim
AIM: To evaluate the technical feasibility and safety of covered airway stent placement for malignant tracheobronchial strictures in patients with an endotracheal tube. MATERIALS AND METHODS: Data regarding retrievable, expandable, metal stent placement under fluoroscopic guidance in 20 patients with an endotracheal tube inserted for malignant tracheobronchial strictures were retrospectively analysed. The clinical effectiveness was assessed using the following variables: technical and clinical success; procedure and stent-related complications; and duration of intubation following stent placement...
November 2016: Clinical Radiology
https://www.readbyqxmd.com/read/27424822/choke-point-physiology-in-airway-stenting-a-case-presentation-and-discussion
#20
REVIEW
Teruomi Miyazawa, Seiichi Nobuyama, Hiroki Nishine, Hiroshi Handa, Masamichi Mineshita
BACKGROUND: The point in the airway that allows the smallest maximal flow is known as the "choke point". The tube law describes the velocity of the expired air, which cannot exceed the wave-speed. Flow limitation during forced expiration is affected by the relationship between the transmural pressure (Ptm) and cross-sectional area (A) of the airway. Wave speed is dependent on the stiffness of the airway wall, as well as on the cross-section of the airway itself (dA/dPtm). METHODS: Airway stenting at the wave-speed, flow-limiting segment (choke point) is assessed by using a catheter, via the working channel of a stereoscopic bronchoscope, to measure the difference between lateral pressure and pleural pressure...
July 2016: Respiratory Investigation
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