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Bronchial obstruction

Sriranga R, Animesh Ray, Sanjeev Sinha
No abstract text is available yet for this article.
April 2018: Journal of Bronchology & Interventional Pulmonology
Jorge L Morales-Estrella, Michael Machuzak, Bohdan Pichurko, Hanine Inaty, Atul C Mehta
Negative pressure pulmonary edema is a well-described complication of upper airway obstruction. However, the simultaneous occurrence of blood-stained secretions and petechial tracheobronchial hemorrhage are rarely recognized and a potential complication of transient intentional occlusion of the airways. We described a case of "hemorrhagic bronchial mucosa syndrome" and asymptomatic blood-tinged pulmonary edema after balloon bronchoplasty for a concentric tracheal stenosis using a flexible bronchoscopy...
April 2018: Journal of Bronchology & Interventional Pulmonology
Emmanuel Marret, Raphael Cinotti, Laurence Berard, Vincent Piriou, Jacques Jobard, Benoit Barrucand, Dragos Radu, Samir Jaber, Francis Bonnet
BACKGROUND: Thoracic surgery for lung resection is associated with a high incidence of postoperative pulmonary complications. Controlled ventilation with a large tidal volume has been documented to be a risk factor for postoperative respiratory complications after major abdominal surgery, whereas the use of low tidal volumes and positive end-expiratory pressure (PEEP) has a protective effect. OBJECTIVE: To evaluate the effects of ventilation with low tidal volume and PEEP on major complications after thoracic surgery...
March 19, 2018: European Journal of Anaesthesiology
David Z Silberstein, Kalimuthu Karuppanan, Hnin Hnin Aung, Ching-Hsien Chen, Carroll E Cross, Karen A McDonald
Proteases and reactive oxygen species (ROS) have long been implicated in playing key roles in host tissue injury at sites of inflammatory processes dominated by macrophage activations and/or neutrophil infiltrations. Imbalances between proteases/antiproteases and ROS/antioxidants are recognized to contribute to amplification of inflammatory-based host tissue injury. This has been especially well-documented in such respiratory tract diseases as chronic obstructive pulmonary disease, cystic fibrosis, and acute respiratory distress syndrome...
March 15, 2018: Free Radical Biology & Medicine
Jung Won Yoon, Youn Ho Sheen, Eun Kyo Ha, Ji Hyun Baek, Hey Sung Baek, Sun Hee Choi, Man Yong Han
BACKGROUND: Small airway hyperresponsiveness is a critical aspect in preschool children with asthmatic symptoms interms of asthma control. The aim of this study was to elucidate the relationship of changes in reactance (Xrs) and resistance (Rrs) of IOS and FEV1 with those in clinical parameters and to determine which IOS parameter is correlated with bronchial hyperresponsiveness before positive clinical endpoints. METHODS: We performed the methacholine challenge test in ninety-four preschool children (4...
March 12, 2018: Asian Pacific Journal of Allergy and Immunology
Alexander D Jobrack, Suman Goel, Alvin M Cotlar
Introduction: Granular cell tumors (GCTs) are of neuroectodermal origin and account for 0.5% of soft tissue tumors. They are most prevalent in African-Americans in the fourth to sixth decades, with a predilection for the head and neck regions. GCTs usually resemble more common lesions and hence are difficult to diagnose preoperatively. The tumor is readily identified on needle biopsy. Although usually benign with a malignancy rate of only 2-3%, the malignant form has a reported 3-yr mortality of 60%...
March 14, 2018: Military Medicine
Zhengpeng Zeng, ShengYang He, JunJuan Lu, Chun Liu, Hua Lin, ChaoQun Xu, LiHua Xie, ShengHua Sun
MicroRNAs and autophagy play important roles in chronic obstructive pulmonary disease (COPD). This study was designed to explore the role of microRNA-21 (miR-21) induced autophagy in COPD. Using the C57BL/6, miR-21-/- mice and human bronchial epithelial (16HBE) cell line, we found that in the lung tissues of mice, the level of autophagy in the COPD model group was significantly higher than that in the control group. However, compared to the COPD model, the level of autophagy was significantly lower in the miR-21-/- CSE+CS group...
March 15, 2018: Experimental Lung Research
Caoye Wang, Zhengqiang Yang, Jinguo Xia, Weiping Wang, Wenhua Chen, Qi Wang
Bronchobiliary fistula (BBF) is a rare condition, defined as an abnormal communication between the bronchial system and the biliary tree. Patients with this condition usually present with massive biliptysis, and the mortality rate is high. BBF has been reported to occur in patients with congenital conditions, complications of trauma, hepatic abscesses and biliary tract obstruction (surgical as well as non-surgical). However, to the best of our knowledge, BBF as a complication of transcatheter arterial chemoembolization (TACE) for hepatocellular carcinoma (HCC) has not been reported to date...
April 2018: Molecular and Clinical Oncology
Zhilin Zeng, Miao Li, Jinkun Chen, Qinghai Li, Qin Ning, Jianping Zhao, Yongjian Xu, Jungang Xie, Jun Yu
Background: Chronic obstructive pulmonary disease (COPD) is a common inflammatory lung disease characterized by inflammatory cells activation and production of inflammatory mediators. Methyl-CpG-binding domain protein 2 (MBD2) plays an important role in diverse immunological disorders by regulating immune cell functions, such as differentiation and mediator secretion. However, the role of MBD2 in COPD remains unknown. Methods: MBD2 protein expression in lung tissues of patients with COPD and cigarette smoke (CS)-exposed mice were evaluated by Western blot and immunohistochemistry...
2018: International Journal of Chronic Obstructive Pulmonary Disease
M H Zou, L Ma, Y S Xia, S C Yang, W D Chen, F Cao, X X Chen
Objective: To review the early and mid-term results of end-to-side anastomosis technique for interrupted aortic arch in neonates and infants. Methods: Clinic data of 46 patients were diagnosed as interrupted aortic arch in Department of Cardiac Surgery, Guangzhou Women and Children's Medical Center between January 2010 and December 2016 were analyzed retrospectively. Twenty-six cases were neonates. The median age underwent surgery was 23 days (range: 2 days to 8 years). Anatomical subtypes included 36 cases of type A and 10 cases of type B...
March 1, 2018: Zhonghua Wai Ke za Zhi [Chinese Journal of Surgery]
Claudio Pedone, Renato Giua, Nicola Scichilone, Vincenzo Bellia, Raffaele Antonelli-Incalzi
INTRODUCTION: In the new GOLD classification the reduction of FEV1, expressed as percentage of predicted value (FEV1PP), is considered an important prognostic factor. However, the use of FEV1PP may introduce bias, especially if based on equations derived from populations different from the one under study. We evaluated how well the GOLD classification stratifies the mortality risk when FEV1PP is based on an equation developed in the same population that gave rise to cases, externally developed equations, or as FEV1 divided by cubed height (FEV1/Ht3 )...
March 9, 2018: Archivos de Bronconeumología
Bircan Erbas, Toril Mørkve Knudsen, Christer Janson, Roy M Nilsen, Simone Accordini, Bryndis Benediktdottir, Julia Dratva, Joachim Heinrich, Debbie Jarvis, Benedcite Leynaert, Melanie C Matheson, Dan Norbäck, Francisco G Real, Chantal Raherison-Semjen, Simona Villani, S C Dharmage, C Svanes
BACKGROUND: Despite extensive knowledge of smoking effects on respiratory disease, there is no study including all age windows of exposure among ever smokers. The objective of this study was to assess the effects from smoking exposure in utero, early childhood, adolescence and adulthood on respiratory health outcomes in adult male and female ever smokers. METHODS: Respiratory health outcomes were assessed in 10,610 participants of the European Community Respiratory Health Survey (ECRHS) I who reported a history of ever smoking by questionnaire...
March 6, 2018: Environmental Research
Satoru Yanagisawa, Jonathan R Baker, Chaitanya Vuppusetty, Takeshi Koga, Thomas Colley, Peter Fenwick, Louise E Donnelly, Peter J Barnes, Kazuhiro Ito
SIRT1 (silent information regulator 2 homolog 1) is a crucial cellular survival protein especially in oxidative stress environments, and has been thought to locate within the nuclei, but also known to shuttle between cytoplasm and nuclei in some cell types. Here, we show for the first time the dynamics of SIRT1 in the presence of single or concurrent cigarette smoke extract (CSE) exposure in human bronchial epithelial cells (HBEC). In BEAS-2B HBEC or primary HBEC, SIRT1 was localized predominantly in cytoplasm, and the CSE (3%) induced nuclear translocation of SIRT1 from cytoplasm in the presence of L-buthionine sulfoximine (an irreversible inhibitor of γ-glutamylcystein synthetase), mainly through the activation of phosphatidylinositol 3-kinase (PI3K) α subunit...
2018: PloS One
Yong Wang, Juan Liu, Jie-Sen Zhou, Hua-Qiong Huang, Zhou-Yang Li, Xu-Chen Xu, Tian-Wen Lai, Yue Hu, Hong-Bin Zhou, Hai-Pin Chen, Song-Min Ying, Wen Li, Hua-Hao Shen, Zhi-Hua Chen
Airway epithelial cell death and inflammation are pathological features of chronic obstructive pulmonary disease (COPD). Mechanistic target of rapamycin (MTOR) is involved in inflammation and multiple cellular processes, e.g., autophagy and apoptosis, but little is known about its function in COPD pathogenesis. In this article, we illustrate how MTOR regulates cigarette smoke (CS)-induced cell death, airway inflammation, and emphysema. Expression of MTOR was significantly decreased and its suppressive signaling protein, tuberous sclerosis 2 (TSC2), was increased in the airway epithelium of human COPD and in mouse lungs with chronic CS exposure...
March 5, 2018: Journal of Immunology: Official Journal of the American Association of Immunologists
Xiuqin Ye, Wei Hong, Binwei Hao, Gongyong Peng, Lingmei Huang, Zhuxiang Zhao, Yumin Zhou, Mengning Zheng, Chenglong Li, Chunxiao Liang, Erkang Yi, Jinding Pu, Bing Li, Pixin Ran
BACKGROUND: The contribution of airway remodeling in chronic obstructive pulmonary disease (COPD) has been well documented, with airway smooth muscle cell proliferation and migration playing a role in the remodeling process. Here, we aimed to verify the effects of fine particulate matter (PM2.5) on human bronchial smooth muscle cell (HBSMC) migration and to explore the underlying signaling pathways. METHODS: HBSMC apoptosis, proliferation and migration were measured using flow cytometry, cell counting and transwell migration assays, respectively...
March 2, 2018: Respiratory Research
Antonello Nicolini, Bruna Grecchi, Maura Ferrari-Bravo, Cornelius Barlascini
Purpose: Chest physiotherapy is an important tool in the treatment of COPD. Intrapulmonary percussive ventilation (IPV) and high-frequency chest wall oscillation (HFCWO) are techniques designed to create a global percussion of the lung which removes secretions and probably clears the peripheral bronchial tree. We tested the hypothesis that adding IPV or HFCWO to the best pharmacological therapy (PT) may provide additional clinical benefit over chest physiotherapy in patients with severe COPD...
2018: International Journal of Chronic Obstructive Pulmonary Disease
Paul D Robinson, Philipp Latzin, Kathryn A Ramsey, Sanja Stanojevic, Paul Aurora, Stephanie D Davis, Monika Gappa, Graham L Hall, Alex Horsley, Renee Jensen, Sooky Lum, Carlos Milla, Kim G Nielsen, Jessica E Pittman, Margaret Rosenfeld, Florian Singer, Padmaja Subbarao, Per M Gustafsson, Felix Ratjen
BACKGROUND: Obstructive airway disease is nonuniformly distributed throughout the bronchial tree, although the extent to which this occurs can vary among conditions. The multiple-breath washout (MBW) test offers important insights into pediatric lung disease, not available through spirometry or resistance measurements. The European Respiratory Society/American Thoracic Society inert gas washout consensus statement led to the emergence of validated commercial equipment for the age group 6 years and above; specific recommendations for preschool children were beyond the scope of the document...
March 1, 2018: American Journal of Respiratory and Critical Care Medicine
Yuttiwat Vorakunthada, Weerapong Lilitwat
Tracheobronchomalacia (TBM) is characterized by weakness of cartilaginous supporting structures of tracheal and bronchial walls, resulting in central airway obstruction. It is a rare condition that can occur after prolonged intubation. Here, we report a 26-year-old, alcoholic male who had TBM, mild subglottic, and severe tracheal stenosis following 2 weeks of intubation. Subglottic and tracheal stenosis can occur after extubation but TBM is uncommon. The exact mechanism is still unknown but post-intubation TBM is a life-threatening condition with high morbidity and mortality if left untreated...
2018: Respiratory Medicine Case Reports
Almira Ćosićkić, Fahrija Skokić, Amela Selimović, Maida Mulić, Sanimir Suljendić, Nermina Dedić, Damir Sabitović, Fejzo Džafić
Children with atopic dermatitis (AD) usually develop symptoms when they reach the age of 6-7 years, but the risk of developing respiratory allergies, asthma and allergic rhinitis (AR) remains high. In most children with AD, the development of asthma and AR is associated with sensitization to food allergens and/or aeroallergens, while only a small percentage missed atopic diathesis. In about 35% of children with AD, food allergy is the provoking cause, and 60% of infants who had AD in the first 3 months of life were sensitized against aeroallergens by the age of 5...
June 2017: Acta Clinica Croatica
Ulf Hedström, Oskar Hallgren, Lisa Öberg, Amy DeMicco, Outi Vaarala, Gunilla Westergren-Thorsson, Xiaohong Zhou
Chronic obstructive pulmonary disease (COPD) is a serious global health problem characterized by chronic airway inflammation, progressive airflow limitation and destruction of lung parenchyma. Remodeling of the bronchial airways in COPD includes changes in both the bronchial epithelium and the subepithelial extracellular matrix (ECM). To explore the impact of an aberrant ECM on epithelial cell phenotype in COPD we developed a new ex vivo model, in which normal human bronchial epithelial (NHBE) cells repopulate and differentiate on decellularized human bronchial scaffolds derived from COPD patients and healthy individuals...
February 22, 2018: Scientific Reports
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