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Obstructive pulmonary disease

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https://www.readbyqxmd.com/read/28351016/nano-enabled-paper-humidity-sensor-for-mobile-based-point-of-care-lung-function-monitoring
#1
Mitradip Bhattacharjee, Harshal B Nemade, Dipankar Bandyopadhyay
The frequency of breathing and peak flow rate of exhaled air are necessary parameters to detect chronic obstructive pulmonary diseases (COPDs) such as asthma, bronchitis, or pneumonia. We developed a lung function monitoring point-of-care-testing device (LFM-POCT) consisting of mouthpiece, paper-based humidity sensor, micro-heater, and real-time monitoring unit. Fabrication of a mouthpiece of optimal length ensured that the exhaled air was focused on the humidity-sensor. The resistive relative humidity sensor was developed using a filter paper coated with nanoparticles, which could easily follow the frequency and peak flow rate of the human breathing...
March 22, 2017: Biosensors & Bioelectronics
https://www.readbyqxmd.com/read/28350721/a-rare-case-of-cor-triatriatum-leading-to-respiratory-failure-and-shock-in-an-8-month-old
#2
Catherine Burger
An 8-month-old boy presents with 1 week of gradually worsening respiratory distress. After chest radiograph shows bilateral airspace opacities, he is treated for pneumonia with antibiotics and intravenous fluids. Shortly after this, he decompensates requiring intubation, followed by cardiopulmonary support with pressors and eventually extracorporeal membrane oxygenation. Bedside ultrasound then shows an additional congenital membrane in the left atrium obstructing pulmonary venous return and thought to have caused his original presentation and subsequent decompensation...
March 27, 2017: Pediatric Emergency Care
https://www.readbyqxmd.com/read/28346975/hypothyroidism-is-associated-with-all-cause-mortality-in-a-national-cohort-of-chronic-hemodialysis-patients
#3
Hsuan-Jen Lin, Chung-Chih Lin, Hsuan Ming Lin, Hsuan-Ju Chen, Che-Chen Lin, Chiz-Tzung Chang, Che-Yi Chou, Chiu-Ching Huang
BACKGROUND: The prevalence of hypothyroidism is high in hemodialysis (HD) patients and hypothyroidism increases all-cause mortality in HD patients. Comorbidities are common in HD patients and are associated with both mortality and hypothyroidism. The aim of the study is to explore the effect of the interactions of comorbidities and hypothyroidism on all-cause mortality in HD patients. METHOD: Patients with hypothyroidism (ICD-9-CM 244.0, 244.1, and 244.9) and matched patients without hypothyroidism in the Registry for Catastrophic Illness Patient Database of Taiwan Health Insurance from 2000 to 2010 were analyzed...
March 27, 2017: Nephrology
https://www.readbyqxmd.com/read/28346430/il-17c-mediates-the-recruitment-of-tumor-associated-neutrophils-and-lung-tumor-growth
#4
C Jungnickel, L H Schmidt, L Bittigkoffer, L Wolf, A Wolf, F Ritzmann, A Kamyschnikow, C Herr, M D Menger, T Spieker, R Wiewrodt, R Bals, C Beisswenger
Chronic obstructive pulmonary disease (COPD) is associated with an increased risk for lung cancer and an aberrant microbiota of the lung. Microbial colonization contributes to chronic neutrophilic inflammation in COPD. Nontypeable Haemophilus influenzae (NTHi) is frequently found in lungs of stable COPD patients and is the major pathogen triggering exacerbations. The epithelial cytokine interleukin-17C (IL-17C) promotes the recruitment of neutrophils into inflamed tissues. The purpose of this study was to investigate the function of IL-17C in the pulmonary tumor microenvironment...
March 27, 2017: Oncogene
https://www.readbyqxmd.com/read/28345959/ventilatory-inefficiency-and-exertional-dyspnea-in-early-chronic-obstructive-pulmonary-disease
#5
J Alberto Neder, Danilo C Berton, Paulo de Tarso Müller, Amany F Elbehairy, Alcides Rocha, Paolo Palange, Denis E O'Donnell
Exertional dyspnea is present across the spectrum of chronic obstructive pulmonary disease (COPD) severity. However, without realizing it themselves, patients may decrease daily physical activity to avoid distressing respiratory sensations. Dyspnea also may be associated with deconditioning. Cardiopulmonary exercise testing can uncover exertional dyspnea and its physiological determinants in patients with preserved or only mildly-reduced FEV1. Dyspnea in mild COPD can largely be explained by increased "wasted" ventilation in the physiological dead space which heightens the drive to breathe and worsens the inspiratory mechanical constraints...
March 27, 2017: Annals of the American Thoracic Society
https://www.readbyqxmd.com/read/28345955/smoking-dependent-distal-to-proximal-repatterning-of-the-adult-human-small-airway-epithelium
#6
Jing Yang, Wu-Lin Zuo, Tomoya Fukui, IonWa Chao, Kazunori Gomi, Busub Lee, Michelle R Staudt, Robert J Kaner, Yael Strulovici-Barel, Jacqueline Salit, Ronald G Crystal, Renat Shaykhiev
RATIONALE: Small airways are the primary site of pathologic changes in chronic obstructive pulmonary disease (COPD), the major smoking-induced lung disorder. OBJECTIVES: Based on the concept of proximal-distal patterning that determines regional specialization of the airway epithelium during lung development, we hypothesized that a similar program operates in the adult human lung being altered by smoking leading to decreased regional identity of the small airway epithelium (SAE)...
March 27, 2017: American Journal of Respiratory and Critical Care Medicine
https://www.readbyqxmd.com/read/28344981/the-effects-of-exogenous-lipid-on-thp-1-cells-an-in-vitro-model-of-airway-aspiration
#7
Yvette A Hayman, Laura R Sadofsky, James D Williamson, Simon P Hart, Alyn H Morice
Chronic inflammatory diseases of the airways are associated with gastro-oesophageal reflux (GOR) and aspiration events. The observation of lipid-laden macrophages (LLMs) within the airway may indicate aspiration secondary to GOR. The proposed mechanism, that lipid droplets from undigested or partially digested food are aspirated leading to accumulation in scavenging macrophages, led us to hypothesise that an activated population of LLMs could interact with other immune cells to induce bronchial inflammation...
January 2017: ERJ Open Research
https://www.readbyqxmd.com/read/28344980/discordance-in-investigator-reported-and-adjudicated-sudden-death-in-tiospir
#8
Robert A Wise, Peter R Kowey, George Austen, Achim Mueller, Norbert Metzdorf, Andy Fowler, Lorcan P McGarvey
Accurate and consistent determination of cause of death is challenging in chronic obstructive pulmonary disease (COPD) patients. TIOSPIR (N=17 135) compared the safety and efficacy of tiotropium Respimat 5/2.5 µg with HandiHaler 18 µg in COPD patients. All-cause mortality was a primary end-point. A mortality adjudication committee (MAC) assessed all deaths. We aimed to investigate causes of discordance in investigator-reported and MAC-adjudicated causes of death and their impact on results, especially cardiac and sudden death...
January 2017: ERJ Open Research
https://www.readbyqxmd.com/read/28344354/hdac1-3-inhibitor-ms-275-enhances-il10-expression-in-raw264-7-macrophages-and-reduces-cigarette-smoke-induced-airway-inflammation-in-mice
#9
Niek G J Leus, Thea van den Bosch, Petra E van der Wouden, Kim Krist, Maria E Ourailidou, Nikolaos Eleftheriadis, Loes E M Kistemaker, Sophie Bos, Rutger A F Gjaltema, Solomon A Mekonnen, Rainer Bischoff, Reinoud Gosens, Hidde J Haisma, Frank J Dekker
Chronic obstructive pulmonary disease (COPD) constitutes a major health burden. Studying underlying molecular mechanisms could lead to new therapeutic targets. Macrophages are orchestrators of COPD, by releasing pro-inflammatory cytokines. This process relies on transcription factors such as NF-κB, among others. NF-κB is regulated by lysine acetylation; a post-translational modification installed by histone acetyltransferases and removed by histone deacetylases (HDACs). We hypothesized that small molecule HDAC inhibitors (HDACi) targeting class I HDACs members that can regulate NF-κB could attenuate inflammatory responses in COPD via modulation of the NF-κB signaling output...
March 27, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28343186/-profile-of-adults-suffering-from-copd-in-poland
#10
Marcin Nowak, Mateusz Jankowski, Grzegorz M Brożek, Szymon Skoczyński, Patrycja Rzepka-Wrona, Ewa Pierzchała, Jan E Zejda, Władysław Pierzchała
INTRODUCTION: Chronic obstructive pulmonary disease (COPD) is one of the most common chronic diseases in adults. It is estimated, that in Poland around two million people suffer from COPD. THE AIM: The aim of this study, was to characterize population of patients with COPD in Poland. MATERIAL AND METHODS: The study, established and coordinated by the Polish Respiratory Society, included a representative sample of 500 GPs where were asked to fill questionnaires on diagnosis and treatment of their COPD patients...
2017: Wiadomości Lekarskie: Organ Polskiego Towarzystwa Lekarskiego
https://www.readbyqxmd.com/read/28342349/evaluation-of-individual-and-area-level-factors-as-modifiers-of-the-association-between-warm-season-temperature-and-pediatric-asthma-morbidity-in-atlanta-ga
#11
Cassandra R O'Lenick, Andrea Winquist, Howard H Chang, Michael R Kramer, James A Mulholland, Andrew Grundstein, Stefanie Ebelt Sarnat
INTRODUCTION: Previous studies have found associations between respiratory morbidity and high temperatures; however, few studies have explored associations in potentially sensitive sub-populations. METHODS: We evaluated individual and area-level factors as modifiers of the association between warm-season (May-Sept.) temperature and pediatric respiratory morbidity in Atlanta. Emergency department (ED) visit data were obtained for children, 5-18 years old, with primary diagnoses of asthma or respiratory disease (diagnoses of upper respiratory infections, bronchiolitis, pneumonia, chronic obstructive pulmonary disease, asthma, or wheeze) in 20-county Atlanta during 1993-2012...
March 22, 2017: Environmental Research
https://www.readbyqxmd.com/read/28342257/transcatheter-aortic-valve-replacement-by-a-minimalist-approach-a-breath-of-fresh-air-for-patients-with-chronic-obstructive-pulmonary-disease
#12
EDITORIAL
Adriano Caixeta, Pedro A Lemos
No abstract text is available yet for this article.
March 1, 2017: Catheterization and Cardiovascular Interventions
https://www.readbyqxmd.com/read/28341473/pneumonia-after-cardiac-surgery-experience-of-the-national-institutes-of-health-canadian-institutes-of-health-research-cardiothoracic-surgical-trials-network
#13
Gorav Ailawadi, Helena L Chang, Patrick T O'Gara, Karen O'Sullivan, Y Joseph Woo, Joseph J DeRose, Michael K Parides, Vinod H Thourani, Sophie Robichaud, A Marc Gillinov, Wendy C Taddei-Peters, Marissa A Miller, Louis P Perrault, Robert L Smith, Lyn Goldsmith, Keith A Horvath, Kristen Doud, Kim Baio, Annetine C Gelijns, Alan J Moskowitz, Emilia Bagiella, John H Alexander, Alexander Iribarne
RATIONALE: Pneumonia remains the most common major infection after cardiac surgery despite numerous preventive measures. OBJECTIVES: To prospectively examine the timing, pathogens, and risk factors, including modifiable management practices, for postoperative pneumonia and estimate its impact on clinical outcomes. METHODS: A total of 5158 adult cardiac surgery patients were enrolled prospectively in a cohort study across 10 centers. All infections were adjudicated by an independent committee...
February 9, 2017: Journal of Thoracic and Cardiovascular Surgery
https://www.readbyqxmd.com/read/28341409/glottis-closure-influences-tracheal-size-changes-in-inspiratory-and-expiratory-ct-in-patients-with-copd
#14
Nicholas Landini, Stefano Diciotti, Monica Lanzetta, Francesca Bigazzi, Gianna Camiciottoli, Mario Mascalchi
RATIONALE AND OBJECTIVES: The opened or closed status of the glottis might influence tracheal size changes in inspiratory and expiratory computed tomography (CT) scans. We investigated if the glottis status makes the tracheal collapse differently correlate with lung volume difference between inspiratory and expiratory CT scans. MATERIALS AND METHODS: Forty patients with chronic obstructive pulmonary disease whose glottis was included in the acquired scanned volume for lung CT were divided into two groups: 16 patients with the glottis closed in both inspiratory and expiratory CT, and 24 patients with the glottis open in at least one CT acquisition...
March 21, 2017: Academic Radiology
https://www.readbyqxmd.com/read/28341128/-a-bronchial-mucous-gland-adenoma-resected-by-endoscopic-procedure
#15
C Vergnenègre, J Hureaux, B Morvant, T Urban, T Jeanfaivre
INTRODUCTION: Surgical resection is usually performed for the treatment of endobronchial tumors. This case describes the use of endoscopic resection as an initial treatment, allowing to spare lung parenchyma. CASE REPORT: A patient was admitted to the emergency unit with right lower lobe pneumonia. A thoracic CT-scan and subsequent bronchoscopy revealed an intrabronchial tumor between the right main and intermediate bronchus. Biopsies were non-diagnostic and a PET-scanner did not find any abnormalities...
March 21, 2017: Revue des Maladies Respiratoires
https://www.readbyqxmd.com/read/28340867/comparative-prevalence-of-co-morbidities-in-smoking-and-non-smoking-asthma-patients-with-incomplete-reversibility-of-airway-obstruction-non-smoking-asthma-patients-with-complete-reversibility-of-airway-obstruction-and-copd-patients
#16
Myriam Nadeau, Marie-Ève Boulay, Joanne Milot, Johane Lepage, Lara Bilodeau, François Maltais, Louis-Philippe Boulet
BACKGROUND: Asthma with incomplete reversibility of airway obstruction (IRAO) may often be associated to smoking-induced changes. Nevertheless, a high proportion of patients showing IRAO have never smoked. These patients with IRAO often share features of patients with chronic obstructive pulmonary disease (COPD). Although IRAO is still a poorly defined condition, it has been associated with a higher morbidity and mortality than asthma with complete reversibility of airway obstruction (CRAO) or even COPD alone...
April 2017: Respiratory Medicine
https://www.readbyqxmd.com/read/28340862/symptom-variability-and-control-in-copd-advantages-of-dual-bronchodilation-therapy
#17
REVIEW
Fabiano Di Marco, Pierachille Santus, Nicola Scichilone, Paolo Solidoro, Marco Contoli, Fulvio Braido, Angelo Guido Corsico
BACKGROUND: Chronic obstructive pulmonary disease (COPD) is a heterogeneous disorder characterized by usually progressive development of airflow obstruction that is not fully reversible. While most patients will experience symptoms throughout the day or in the morning upon awakening, many patients do not experience their symptoms as constant but report variability in symptoms during the course of the day or over time. Symptom variability adversely affects patients' health status and increases the risk of COPD exacerbations...
April 2017: Respiratory Medicine
https://www.readbyqxmd.com/read/28340861/a-randomised-double-blind-placebo-controlled-long-term-extension-study-of-the-efficacy-safety-and-tolerability-of-fixed-dose-combinations-of-aclidinium-formoterol-or-monotherapy-in-the-treatment-of-chronic-obstructive-pulmonary-disease
#18
Anthony D'Urzo, Stephen Rennard, Edward Kerwin, James F Donohue, Alejhandra Lei, Eduard Molins, Anne Leselbaum
INTRODUCTION: Aclidinium bromide/formoterol fumarate (AB/FF) 400/12 μg efficacy and safety was demonstrated in two 6-month Phase III studies (AUGMENT and ACLIFORM) and a 12-month study in patients with moderate to severe chronic obstructive pulmonary disease (COPD). This Phase III, double-blind, placebo-controlled, 6-month AUGMENT extension investigated the long-term safety and tolerability of AB/FF 400/12 μg (NCT01572792). METHODS: Patients were randomised in AUGMENT (1:1:1:1:1) to twice-daily AB/FF 400/12 μg, AB/FF 400/6 μg, AB 400 μg, FF 12 μg or placebo...
April 2017: Respiratory Medicine
https://www.readbyqxmd.com/read/28340860/association-of-pre-hospital-theophylline-use-and-mortality-in-chronic-obstructive-pulmonary-disease-patients-with-sepsis
#19
Yu-Ning Shih, Yung-Tai Chen, Hsi Chu, Chia-Jen Shih, Shuo-Ming Ou, Yen-Tao Hsu, Ran-Chou Chen, Sadeq A Quraishi, Imoigele P Aisiku, Raghu R Seethala, Gyorgy Frendl, Peter C Hou
BACKGROUND: Although theophylline has been shown to have anti-inflammatory effects, the therapeutic use of theophylline before sepsis is unknown. The aim of our study was to determine the effect of theophylline on COPD patients presenting with sepsis. METHODS: This nationwide, population-based, propensity score-matched analysis used data from the linked administrative databases of Taiwan's National Health Insurance program. Patients with COPD who were hospitalized for sepsis between 2000 and 2011 were divided into theophylline users and non-users...
April 2017: Respiratory Medicine
https://www.readbyqxmd.com/read/28340856/changes-in-the-prevalence-of-copd-in-korea-between-2001-and-2011-in-the-knhanes-data
#20
Ji Young Hong, Ji Ye Jung, Myung Goo Lee, Se Kyu Kim, Joon Chang, Chang Youl Lee, Young Sam Kim
BACKGROUND: Chronic obstructive pulmonary disease (COPD) is a serious public health problem. Understanding the longitudinal trend in prevalence is important for characterizing the burden of COPD and planning health services. METHODS: We analyzed the prevalence of airflow obstruction between 2001 and 2011 using data from Korean National Health and Nutritional Examination Surveys (2001, n = 2217; 2011, n = 3101). Participants >40 years of age with an FEV1/FVC <0...
April 2017: Respiratory Medicine
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