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airway reconstruction

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https://www.readbyqxmd.com/read/28922269/extubation-failure-is-associated-with-increased-mortality-following-first-stage-single-ventricle-reconstruction-operation
#1
Thomas Scodellaro, Jane M McKenzie, Yves d'Udekem, Warwick Butt, Siva P Namachivayam
OBJECTIVES: To identify the prevalence, causes, risk factors, and outcomes associated with extubation failure following first stage single ventricle reconstruction surgery. DESIGN: Retrospective cohort analysis of neonates who underwent a first stage single ventricle reconstruction operation. Extubation failure was defined as endotracheal reintubation within 48 hours of first extubation attempt. SETTING: The Royal Children's Hospital, Melbourne...
September 15, 2017: Pediatric Critical Care Medicine
https://www.readbyqxmd.com/read/28906275/vv-ecmo-assisted-high-risk-endobronchial-stenting-as-rescue-for-asphyxiating-mediastinal-mass
#2
Brandon T Nokes, Laszlo Vaszar, Jama Jahanyar, Karen L Swanson
The use of venovenous extracorporeal membrane oxygenation (VV-ECMO) has traditionally been limited to a narrow set of clinical circumstances, such as acute hypoxic respiratory failure, submassive pulmonary embolism, and cardiopulmonary collapse. Within the pediatric population, there have been cases of VV-ECMO in the context of extrinsic airway compression by a mediastinal mass, typically in the setting of either a lymphoma or germ cell tumors. However, the use of VV-ECMO for adults with extrinsic airway compression is comparatively limited...
September 12, 2017: Journal of Bronchology & Interventional Pulmonology
https://www.readbyqxmd.com/read/28895883/the-effects-of-resveratrol-on-inflammation-and-oxidative-stress-in-a-rat-model-of-chronic-obstructive-pulmonary-disease
#3
Xiao-Li Wang, Ting Li, Ji-Hong Li, Shu-Ying Miao, Xian-Zhong Xiao
Oxidative stress and inflammation are hypothesized to contribute to the pathogenesis of chronic obstructive pulmonary disease (COPD). Resveratrol (trans-3,5,4'-trihydroxystilbene) is known for its antioxidant and anti-inflammatory properties. The study aimed to investigate the effects of resveratrol in a rat model with COPD on the regulation of oxidative stress and inflammation via the activation of Sirtuin1 (SIRTl) and proliferator-activated receptor-γ coactivator-1α (PGC-1α). Thirty Wistar rats were randomly divided into three groups: control group, COPD group and resveratrol intervention group...
September 12, 2017: Molecules: a Journal of Synthetic Chemistry and Natural Product Chemistry
https://www.readbyqxmd.com/read/28894819/computational-modelling-of-cough-function-and-airway-penetrant-behavior-in-patients-with-disorders-of-laryngeal-function
#4
Bari Hoffman Ruddy, Don Nadun Kuruppumullage, Giselle Carnaby, Michael Crary, Jeffery Lehman, Olusegun J Ilegbusi
OBJECTIVE/HYPOTHESIS: Patients with laryngeal disorders often exhibit changes to cough function contributing to aspiration episodes. Two primary cough variables (peak cough flow: PCF and compression phase duration: CPD) were examined within a biomechanical model to determine their impact on characteristics that impact airway compromise. STUDY DESIGN: Computational study. METHODS: A Computational Fluid Dynamics (CFD) technique was used to simulate fluid flow within an upper airway model reconstructed from patient CT images...
February 2017: Laryngoscope Investigative Otolaryngology
https://www.readbyqxmd.com/read/28888309/head-and-neck-reconstruction
#5
REVIEW
Shannon Wong, Alyson Melin, Debra Reilly
Management of head and neck burns involves acute and intermediate phases. Acutely, the goals are establish a secure airway and treat life-threatening injuries. Then, optimize nutrition, assess extent of the burn, perform local wound care, and provide eye protection. Management depends on the degree of the head and neck burn. Postinjury splinting and rehabilitation are vital to healing. After the acute inflammation has resolved and the scars have matured, reconstruction begins with the goals of restoring both function and aesthetics...
October 2017: Clinics in Plastic Surgery
https://www.readbyqxmd.com/read/28881534/-tracheobronchial-segmental-resection-and-reconstruction-applied-to-surgical-treatment-of-esophageal-cancer-with-airway-involvement
#6
W M Huang, S J Zhang, X Z Liu, H B Liu, J Li
Objective: To evaluate the efficacy of tracheobronchial segmental resection and reconstruction applied to surgical treatment in the patients with esophageal cancer with airway invasion. Methods: From January 2004 to April 2014, 13 patients in our center underwent radical esophagectomy combined with tracheobronchial segmental resection and reconstruction. Patient characteristics, operative procedures, postoperative complications and long-term survival were retrospectively reviewed. Results: All patients received complete resection (R0) with an average length of resected airway 2...
September 5, 2017: Zhonghua Yi Xue za Zhi [Chinese medical journal]
https://www.readbyqxmd.com/read/28856715/feasibility-of-quantitative-regional-ventilation-and-perfusion-mapping-with-phase-resolved-functional-lung-preful-mri-in-healthy-volunteers-and-copd-cteph-and-cf-patients
#7
Andreas Voskrebenzev, Marcel Gutberlet, Filip Klimeš, Till F Kaireit, Christian Schönfeld, Alexander Rotärmel, Frank Wacker, Jens Vogel-Claussen
PURPOSE: In this feasibility study, a phase-resolved functional lung imaging postprocessing method for extraction of dynamic perfusion and ventilation parameters using a conventional 1H lung MRI Fourier decomposition acquisition is introduced. METHODS: Time series of coronal gradient-echo MR images with a temporal resolution of 288 to 324 ms of two healthy volunteers, one patient with chronic thromboembolic hypertension, one patient with cystic fibrosis, and one patient with chronic obstructive pulmonary disease were acquired at 1...
August 30, 2017: Magnetic Resonance in Medicine: Official Journal of the Society of Magnetic Resonance in Medicine
https://www.readbyqxmd.com/read/28855683/tracheal-reconstruction-with-a-free-vascularized-myofascial-flap-preclinical-investigation-in-a-porcine-model-to-human-clinical-application
#8
Won Shik Kim, Jae Won Chang, Woo Soon Jang, Young Joon Seo, Mi-Lan Kang, Hak-Joon Sung, Da Hee Kim, Jung Min Kim, Jae Hong Park, Myung Jin Ban, Gina Na, Seung Ho Shin, Hyung Kwon Byeon, Yoon Woo Koh, Se-Heon Kim, Hong Koo Baik, Eun Chang Choi
Although there are various methods for tracheal reconstruction, such as a simple approximation with suturing and coverage with adjacent soft tissue or muscle, large defects >50% of the tracheal length still present a clinical challenge. Tissue engineering, a recent promising way to possibly resolve this problem, requires a long preparatory period for stem cell seeding on a scaffold and relatively invasive procedures for stem cell harvesting. As an alternative, we used a vascularized myofascial flap for tracheal reconstruction...
August 30, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28854527/3d-imaging-evaluation-of-double-aortic-arch-with-mscta-a-case-report-and-mini-review
#9
Xu Zhu, Chun Wu, Yun He, Bin Qin, Haiyan Yang, Hong Huang, Xiaojuan Ji
Double aortic arch (DAA) is a rare congenital anomaly associated with the formation of a vascular ring. Patients with DAA commonly suffer from complications caused by intracardiac and extracardiac malformations and different degrees of airway stenosis. Multislice computed tomographic angiography (MSCTA) is an intuitive and effective medical imaging technique in clinical diagnosis of DAA. MSCTA can accurately manifest the aortic arch and the course of the descending aorta and airway stenosis in three-dimension (3D)...
August 24, 2017: Journal of X-ray Science and Technology
https://www.readbyqxmd.com/read/28840012/extracorporeal-support-in-airway-surgery
#10
REVIEW
Konrad Hoetzenecker, Walter Klepetko, Shaf Keshavjee, Marcelo Cypel
Extracorporeal life support (ECLS) is increasingly used for major airway surgery. It facilitates complex reconstructions and maintains gas exchange during endoscopic procedures in patients with critical airway obstruction. ECLS offers the advantage of an uncluttered surgical field and eliminates the need for crossing ventilation tubes, thus, making precise surgical dissection easier. ECLS is currently used for hemodynamic and respiratory support in lung transplantation as well as extended tumor resections with an acceptable risk profile...
July 2017: Journal of Thoracic Disease
https://www.readbyqxmd.com/read/28826980/the-effect-of-vocal-fold-inferior-surface-hypertrophy-on-voice-function-in-excised-canine-larynges
#11
Ruiqing Wang, Huijing Bao, Xinlin Xu, David Piotrowski, Yu Zhang, Peiyun Zhuang
OBJECTIVE: This study aimed to explore the changes in vocal fold inferior surface hypertrophy (VFISH) on vocal fold vibration by aerodynamic and acoustic analysis. The present study allows us to gain new insights into the subglottal convergence angle (SCA), which will change with VFISH. STUDY DESIGN: The study is prospective, and designed for repeated measures with each excised canine larynx serving as own control. SUBJECTS AND METHODS: Three degrees of VFISH, initial, mild, and severe, were simulated by injecting different doses of fructose injections into the inferior surface of the vocal folds of 10 excised canine larynges...
August 18, 2017: Journal of Voice: Official Journal of the Voice Foundation
https://www.readbyqxmd.com/read/28819688/airway-reconstruction-using-decellularized-tracheal-allografts-in-a-porcine-model
#12
Michinobu Ohno, Yasushi Fuchimoto, Huai-Che Hsu, Masataka Higuchi, Makoto Komura, Tetsuji Yamaoka, Akihiro Umezawa, Shin Enosawa, Tatsuo Kuroda
PURPOSE: Tracheal cartilage reconstruction is an essential approach for the treatment of tracheal congenital abnormalities or injury. Here, we evaluated the use of allogeneic decellularized tracheas as novel support scaffolds. METHODS: Six weaned pigs (4-week-old domestic males) were transplanted with allogeneic tracheal graft patches (three decellularized and three fresh tracheal scaffolds) onto artificial defects (approximately 15 × 15 mm). After 11 weeks, the tracheas were evaluated by bronchoscopy and histological studies...
August 17, 2017: Pediatric Surgery International
https://www.readbyqxmd.com/read/28815257/-effect-of-functional-appliance-on-upper-airway-in-adolescent-patients-with-skeletal-class-ii-malocclusion
#13
Xuan Li, Hui-Ling Zhou, Xin-Tian Lou, Zheng Hu, Gang Shen
PURPOSE: To investigate the effect of functional appliance on upper airway in adolescent patients with skeletal Class II malocclusion based on cone-beam CT (CBCT). METHODS: Thirty adolescent patients (male:female=1:1) with skeletal Class II malocclusion and their 30 counterparts with skeletal Class I malocclusion were selected. Skeletal Class II malocclusion patients were treated with Activator for 12 months on average, meanwhile skeletal Class I malocclusion patients were treated with fixed appliance without extraction...
April 2017: Shanghai Kou Qiang Yi Xue, Shanghai Journal of Stomatology
https://www.readbyqxmd.com/read/28767732/influence-of-exposure-parameters-and-iterative-reconstruction-on-automatic-airway-segmentation-and-analysis-on-mdct-an-ex-vivo-phantom-study
#14
Patricia Leutz-Schmidt, Oliver Weinheimer, Bertram J Jobst, Julien Dinkel, Jürgen Biederer, Hans-Ulrich Kauczor, Michael U Puderbach, Mark O Wielpütz
OBJECTIVES: To evaluate the influence of exposure parameters and raw-data-based iterative reconstruction (IR) on computer-aided segmentation and quantitative analysis of the tracheobronchial tree on multidetector computed tomography (MDCT). MATERIAL AND METHODS: 10 porcine heart-lung-explants were mounted inside a dedicated chest phantom. MDCT was performed at 120kV and 80kV with 120, 60, 30 and 12 mAs each. All scans were reconstructed with filtered back projection (FBP) or IR, resulting in a total of 160 datasets...
2017: PloS One
https://www.readbyqxmd.com/read/28758937/a-different-microbiome-gene-repertoire-in-the-airways-of-cystic-fibrosis-patients-with-severe-lung-disease
#15
Giovanni Bacci, Alessio Mengoni, Ersilia Fiscarelli, Nicola Segata, Giovanni Taccetti, Daniela Dolce, Patrizia Paganin, Patrizia Morelli, Vanessa Tuccio, Alessandra De Alessandri, Vincenzina Lucidi, Annamaria Bevivino
In recent years, next-generation sequencing (NGS) was employed to decipher the structure and composition of the microbiota of the airways in cystic fibrosis (CF) patients. However, little is still known about the overall gene functions harbored by the resident microbial populations and which specific genes are associated with various stages of CF lung disease. In the present study, we aimed to identify the microbial gene repertoire of CF microbiota in twelve patients with severe and normal/mild lung disease by performing sputum shotgun metagenome sequencing...
July 29, 2017: International Journal of Molecular Sciences
https://www.readbyqxmd.com/read/28746285/a-comparative-analysis-of-recombinant-human-bone-morphogenetic-protein-2-with-a-demineralized-bone-matrix-versus-iliac-crest-bone-graft-for-secondary-alveolar-bone-grafts-in-patients-with-cleft-lip-and-palate-review-of-501-cases
#16
COMPARATIVE STUDY
Jeffrey A Hammoudeh, Artur Fahradyan, Daniel J Gould, Fan Liang, Thomas Imahiyerobo, Leo Urbinelli, JoAnna T Nguyen, William Magee, Stephen Yen, Mark M Urata
BACKGROUND: Alveolar cleft reconstruction using iliac crest bone graft is considered standard of care for children with complete cleft lip and palate at the time of mixed dentition. Harvesting bone may result in donor-site morbidity and additional operating time and length of hospitalization. Recombinant human bone morphogenetic protein (rhBMP)-2 with a demineralized bone matrix is an alternative bone source for alveolar cleft reconstruction. The authors investigated the outcomes of rhBMP-2/demineralized bone matrix versus iliac crest bone graft for alveolar cleft reconstruction by reviewing postoperative surgical complications and cleft closure...
August 2017: Plastic and Reconstructive Surgery
https://www.readbyqxmd.com/read/28738365/advances-in-box-surgery-for-obstructive-sleep-apnea-genioglossus-advancement-hyoid-suspension-and-maxillomandibular-advancement
#17
Yau Hong Goh, Winston Tan, Victor James Abdullah, Sung Wan Kim
Box surgery for obstructive sleep apnea (OSA) patients consists of mandibular surgery, including genioglossus advancement, hyoid suspension, and maxillomandibular advancement, as an airway reconstruction. This surgery was developed in the early 1980s. Thereafter, techniques were modified in each surgery for the enhancement of outcome and prevention of complications. However, the indication for surgery remains poorly defined due to the dynamicity of the upper airway, variability of the phenotype in OSA patients, and absence of a representative method for the obstruction site in the upper airway...
2017: Advances in Oto-rhino-laryngology
https://www.readbyqxmd.com/read/28732224/three-dimensional-changes-in-the-upper-airway-of-skeletal-class-iii-patients-after-different-orthognathic-surgical-procedures
#18
Yuxue Yang, Kai Yang, Ying Zhao
PURPOSE: We hypothesized that 3-dimensional changes in the upper airway of patients with skeletal Class III malocclusion are different after mandibular setback and maxillary advancement (MSMA) compared with mandibular setback (MS) and that upper airway changes and the amount of jaw movement are correlated. PATIENTS AND METHODS: Skeletal Class III patients who underwent MS surgery or MSMA surgery were included in this retrospective cohort study. Cone beam computed tomography scans were acquired before and 3 months after surgery...
June 24, 2017: Journal of Oral and Maxillofacial Surgery
https://www.readbyqxmd.com/read/28688869/ankylosis-of-temporomandibular-joints-after-mandibular-distraction-osteogenesis-in-patients-with-nager-syndrome-report-of-two-cases-and-literature-review
#19
REVIEW
Cheng Chun Wu, Daisuke Sakahara, Keisuke Imai
Nager syndrome, also known as Nager acrofacial dysostosis, was first described by Nager and de Reynier in 1948. The patients commonly present with micrognathia, and a preventive tracheostomy is necessary when there are symptoms of upper airway obstruction. Mandibular distraction osteogenesis is considered as an effective procedure, which not only improves micrognathia but also minimizes the chances of tracheostomy. However, mandibular distraction osteogenesis has some complications such as relapse, teeth injury, infection, and injury of the temporomandibular joints (TMJs)...
October 2017: Journal of Plastic, Reconstructive & Aesthetic Surgery: JPRAS
https://www.readbyqxmd.com/read/28686091/correlation-between-the-position-of-hyoid-bone-and-subregions-of-the-pharyngeal-airway-space-in-lateral-cephalometry-and-cone-beam-computed-tomography
#20
Eliana Dantas da Costa, Gina Delia Roque-Torres, Danieli Moura Brasil, Frab Noberto Bóscolo, Solange Maria de Almeida, Glaucia Maria Bovi Ambrosano
OBJECTIVE: To correlate the pharyngeal airway subregions with the positioning of the hyoid bone. MATERIAL AND METHODS: The study examined 107 lateral cephalometric (LC) and cone beam computed tomography (CBCT) images. Linear and volumetric measurements of the pharyngeal subregions were made and correlated to linear measurements using hyoid triangle analysis on images of LC and multiplanar (MPR) and three-dimensional (3D) reconstructions of CBCT. RESULTS: There was significant correlation between linear measurements of the pharyngeal subregions and hyoid bone position in LC images and in MPR and 3D reconstructions of the CBCT...
September 2017: Angle Orthodontist
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