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https://www.readbyqxmd.com/read/29135398/the-effect-of-obesity-on-dyspnea-exercise-capacity-walk-work-and-workload-in-patients-with-copd
#1
Hülya Şahin, İlknur Naz, Yelda Varol, Berna Kömürcüoğlu
Introduction: COPD and obesity are major public health problems that cause mortality and morbidity all over the world. The combined of COPD and obesity is predicted to increase further in the coming years. Obesity primarily affects the pulmonary system by altering respiratory functions, exercise capacity, pulmonary gas exchange, and endurance and power of respiratory muscles. In this study, we aimed to compare the dyspnea sensation, exercise capacity, walk work and workload in obese COPD patients compared to preobese and normal overweight COPD patients...
September 2017: Tüberküloz Ve Toraks
https://www.readbyqxmd.com/read/29051271/combined-measurement-of-carbon-monoxide-and-nitric-oxide-lung-transfer-does-not-improve-the-identification-of-pulmonary-hypertension-in-systemic-sclerosis
#2
Bruno Degano, Thibaud Soumagne, Thomas Delaye, Patrick Berger, Thierry Perez, Alicia Guillien, Jean-Luc Pellegrin, David Launay, Nadine Magy-Bertrand, Christian Agard, Kiet Phong Tiev, Thông Hua-Huy, Catherine Tardiff, Véronique Diaz, Arnaud Chambellan, Anh Tuan Dinh-Xuan
Screening is important to determine whether patients with systemic sclerosis (SSc) have pulmonary hypertension because earlier pulmonary hypertension treatment can improve survival in these patients. Although decreased transfer factor of the lung for carbon monoxide (TLCO) is currently considered the best pulmonary function test for screening for pulmonary hypertension in SSc, small series have suggested that partitioning TLCO into membrane conductance (diffusing capacity) for carbon monoxide (DMCO) and alveolar capillary blood volume (VC) through combined measurement of TLCO and transfer factor of the lung for nitric oxide (TLNO) is more effective to identify pulmonary hypertension in SSc patients compared with TLCO alone...
October 2017: European Respiratory Journal: Official Journal of the European Society for Clinical Respiratory Physiology
https://www.readbyqxmd.com/read/28893868/official-ers-technical-standards-global-lung-function-initiative-reference-values-for-the-carbon-monoxide-transfer-factor-for-caucasians
#3
Sanja Stanojevic, Brian L Graham, Brendan G Cooper, Bruce R Thompson, Kim W Carter, Richard W Francis, Graham L Hall
There are numerous reference equations available for the single-breath transfer factor of the lung for carbon monoxide (T LCO); however, it is not always clear which reference set should be used in clinical practice. The aim of the study was to develop the Global Lung Function Initiative (GLI) all-age reference values for T LCOData from 19 centres in 14 countries were collected to define T LCO reference values. Similar to the GLI spirometry project, reference values were derived using the LMS (lambda, mu, sigma) method and the GAMLSS (generalised additive models for location, scale and shape) programme in R...
September 2017: European Respiratory Journal: Official Journal of the European Society for Clinical Respiratory Physiology
https://www.readbyqxmd.com/read/28732839/exacerbations-and-duration-of-smoking-abstinence-are-associated-with-the-annual-loss-of-fev1-in-individuals-with-pizz-alpha-1-antitrypsin-deficiency
#4
Sebastian Fähndrich, Nikolas Bernhard, Philipp M Lepper, Claus Vogelmeier, Martina Seibert, Stefan Wagenpfeil, Robert Bals
BACKGROUND: Alpha-1-antitrypsin deficiency (AATD) is a genetic disorder that is associated with a higher risk of chronic obstructive pulmonary disease (COPD) and emphysema. The annual declines in lung function (FEV1) and transfer factor of the lung for carbon monoxide (TLCO) predict all-cause mortality. MATERIAL AND METHODS: We investigated the longitudinal follow-up data over 11 years (mean follow-up period of 4.89 years) from the German AATD registry and analyzed the relationship between annual loss of FEV1 and TLCO and sex, age, body mass index (BMI), nicotine consumption, occupational dust exposure, St...
August 2017: Respiratory Medicine
https://www.readbyqxmd.com/read/28730253/fatal-hypersensitivity-pneumonitis-after-chemical-occupational-exposure
#5
Milena Adina Man, Sorin Claudiu Man, Nicoleta Ştefania Motoc, Carmen Monica Pop, Antigona Carmen Trofor
Hypersensitivity pneumonitis (HP; extrinsic allergic alveolitis) is a rare non-immunoglobulin E (IgE)-mediated inflammatory lung disease caused by inhalation exposure (occupational, recreational or ordinary home exposure). A 36-year-old female patient, without significant medical history, is referred to an outpatient pulmonology clinic for dry cough, shortness of breath, fever, fatigue and weight loss. Chest high-resolution computed tomography (HRCT) was performed, and significant lung fibrosis (especially centrilobular and interlobular in bilateral "thick lines"), traction bronchiectasis and alveolitis in both superior lobes are described...
2017: Romanian Journal of Morphology and Embryology, Revue Roumaine de Morphologie et Embryologie
https://www.readbyqxmd.com/read/28572121/individualised-risk-in-patients-undergoing-lung-volume-reduction-surgery-the-glenfield-bfg-score
#6
Neil J Greening, Paul Vaughan, Inger Oey, Michael C Steiner, Mike D Morgan, Sridhar Rathinam, David A Waller
Lung volume reduction surgery (LVRS) has been shown to be beneficial in patients with chronic obstructive pulmonary disease, but there is low uptake, partly due to perceived concerns of high operative mortality. We aimed to develop an individualised risk score following LVRS.This was a cohort study of patients undergoing LVRS. Factors independently predicting 90-day mortality and a risk prediction score were identified. Reliability of the score was tested using area under the receiver operating characteristic curve (AUROC)...
June 2017: European Respiratory Journal: Official Journal of the European Society for Clinical Respiratory Physiology
https://www.readbyqxmd.com/read/28054389/health-effects-of-laser-printer-emissions-a-controlled-exposure-study
#7
S Karrasch, M Simon, B Herbig, J Langner, S Seeger, A Kronseder, S Peters, G Dietrich-Gümperlein, R Schierl, D Nowak, R A Jörres
Ultrafine particles emitted from laser printers are suspected to elicit adverse health effects. We performed 75-minute exposures to emissions of laser printing devices (LPDs) in a standardized, randomized, cross-over manner in 23 healthy subjects, 14 mild, stable asthmatics, and 15 persons reporting symptoms associated with LPD emissions. Low-level exposures (LLE) ranged at the particle background (3000 cm(-3) ) and high-level exposures (HLE) at 100 000 cm(-3) . Examinations before and after exposures included spirometry, body plethysmography, transfer factors for CO and NO (TLCO, TLNO), bronchial and alveolar NO, cytokines in serum and nasal secretions (IL-1β, IL-5, IL-6, IL-8, GM-CSF, IFNγ, TNFα), serum ECP, and IgE...
July 2017: Indoor Air
https://www.readbyqxmd.com/read/28049168/2017-ers-ats-standards-for-single-breath-carbon-monoxide-uptake-in-the-lung
#8
Brian L Graham, Vito Brusasco, Felip Burgos, Brendan G Cooper, Robert Jensen, Adrian Kendrick, Neil R MacIntyre, Bruce R Thompson, Jack Wanger
This document provides an update to the European Respiratory Society (ERS)/American Thoracic Society (ATS) technical standards for single-breath carbon monoxide uptake in the lung that was last updated in 2005. Although both DLCO (diffusing capacity) and TLCO (transfer factor) are valid terms to describe the uptake of carbon monoxide in the lung, the term DLCO is used in this document. A joint taskforce appointed by the ERS and ATS reviewed the recent literature on the measurement of DLCO and surveyed the current technical capabilities of instrumentation being manufactured around the world...
January 2017: European Respiratory Journal: Official Journal of the European Society for Clinical Respiratory Physiology
https://www.readbyqxmd.com/read/27833966/analysis-of-bronchoalveolar-lavage-fluid-in-a-first-romanian-pulmonary-alveolar-proteinosis-cohort
#9
Oana Claudia Deleanu, Ana Maria Zaharie, Aneta Şerbescu, Floarea Mimi NiŢu, Florin Dumitru MihălŢan, Oana Cristina Arghir
The features of bronchoalveolar lavage fluid (BALF) components and the severity of pulmonary alveolar proteinosis (PAP) were analyzed in the first Romanian cohort of patients admitted to "Marius Nasta" Institute of Pneumophtisiology, Bucharest, Romania. A six-year follow-up study based on bronchoalveolar lavage (BAL) data was performed between January 2007 to December 2012. Study cohort consisted in 20 inpatients diagnosed with PAP, based on BALF cytological findings and÷or on histopathological findings. Demographic, medical history, tobacco use, clinical and radiological features, disease progression with or without whole lung lavage (WLL) therapy were collected...
2016: Romanian Journal of Morphology and Embryology, Revue Roumaine de Morphologie et Embryologie
https://www.readbyqxmd.com/read/27798200/reduction-of-cortical-oxygenation-in-chronic-kidney-disease-evidence-obtained-with-a-new-analysis-method-of-blood-oxygenation-level-dependent-magnetic-resonance-imaging
#10
Bastien Milani, Annalisa Ansaloni, Sofia Sousa-Guimaraes, Nima Vakilzadeh, Maciej Piskunowicz, Bruno Vogt, Matthias Stuber, Michel Burnier, Menno Pruijm
BACKGROUND: Determinations of renal oxygenation by blood oxygenation level-dependent magnetic resonance imaging (BOLD-MRI) in chronic kidney disease (CKD) patients have given heterogeneous results, possibly due to the lack of a reproducible method to analyse BOLD-MRI. It therefore remains uncertain whether patients with CKD have a reduced renal tissue oxygenation. We developed a new method to analyse BOLD-MRI signals and applied it to CKD patients and controls. METHODS: MRI was performed under standardized conditions before and 15 min after IV furosemide in 104 CKD patients, 61 hypertensives and 42 controls...
October 17, 2016: Nephrology, Dialysis, Transplantation
https://www.readbyqxmd.com/read/27760602/-effects-of-vats-lobectomy-vats-anatomic-segmentectomy-and-open-thoracotomy-on-pulmonary-function-of-patients-with-non-small-cell-lung-cancer
#11
Yanjiao Zhang, Yushun Gao
BACKGROUND: Lung cancer is a malignancy with high morbidity and mortality rates worldwide. Surgery is the preferred treatment for non-small cell lung cancer. This study aims to investigate the effects of video-assisted thoracoscopic surgery (VATS) lobectomy, VATS segmentectomy, and open thoracotomy on pulmonary function in the early postoperative stage and compare the difference among three groups. METHODS: Pulmonary function data of patients were collected from September 2015 to February 2016 in Department of Thoracic Surgical Oncology, Cancer Hospital Chinese Academy of Medical Sciences...
October 20, 2016: Zhongguo Fei Ai za Zhi, Chinese Journal of Lung Cancer
https://www.readbyqxmd.com/read/27732160/chronic-obstructive-pulmonary-disease-lobar-analysis-with-hyperpolarized-129-xe-mr-imaging
#12
Tahreema N Matin, Najib Rahman, Annabel H Nickol, Mitchell Chen, Xiaojun Xu, Neil J Stewart, Tom Doel, Vicente Grau, James M Wild, Fergus V Gleeson
Purpose To compare lobar ventilation and apparent diffusion coefficient (ADC) values obtained with hyperpolarized xenon 129 ((129)Xe) magnetic resonance (MR) imaging to quantitative computed tomography (CT) metrics on a lobar basis and pulmonary function test (PFT) results on a whole-lung basis in patients with chronic obstructive pulmonary disease (COPD). Materials and Methods The study was approved by the National Research Ethics Service Committee; written informed consent was obtained from all patients. Twenty-two patients with COPD (Global Initiative for Chronic Obstructive Lung Disease stage II-IV) underwent hyperpolarized (129)Xe MR imaging at 1...
March 2017: Radiology
https://www.readbyqxmd.com/read/27722793/outcome-and-prognostic-factors-in-a-french-cohort-of-patients-with-myositis-associated-interstitial-lung-disease
#13
Julie Obert, Olivia Freynet, Hilario Nunes, Pierre-Yves Brillet, Makoto Miyara, Robin Dhote, Dominique Valeyre, Jean-Marc Naccache
Interstitial lung disease (ILD) is a common form of extramuscular involvement in patients with polymyositis/dermatomyositis and is associated with poor prognosis. This study was designed to describe the long-term outcome of myositis-associated ILD. This retrospective observational study was conducted in 48 consecutive patients. Two groups defined according to outcome were compared to determine prognostic factors: a "severe" group (vital capacity [VC] < 50 % or carbon monoxide transfer factor [TLCO] < 35 % or death or lung transplantation) and a "nonsevere" group (other patients)...
December 2016: Rheumatology International
https://www.readbyqxmd.com/read/27618114/plasma-vascular-endothelial-growth-factor-concentration-and-alveolar-nitric-oxide-as-potential-predictors-of-disease-progression-and-mortality-in-idiopathic-pulmonary-fibrosis
#14
Jalpa Kotecha, Ludmila Shulgina, Darren W Sexton, Christopher P Atkins, Andrew M Wilson
BACKGROUND: Declining lung function signifies disease progression in idiopathic pulmonary fibrosis (IPF). Vascular endothelial growth factor (VEGF) concentration is associated with declining lung function in 6 and 12-month studies. Alveolar nitric oxide concentration (CANO) is increased in patients with IPF, however its significance is unclear. This study investigated whether baseline plasma VEGF concentration and CANO are associated with disease progression or mortality in IPF. METHODS: 27 IPF patients were studied (maximum follow-up 65 months)...
September 7, 2016: Journal of Clinical Medicine
https://www.readbyqxmd.com/read/27508725/-op-4d-06-reduction-of-cortical-oxygenation-in-chronic-kidney-disease-evidence-obtained-with-bold-mri-and-a-new-analytic-technique
#15
B Milani, A Ansaloni, S Sousa-Guimaraes, M Piskunowicz, B Vogt, M Stuber, M Burnier, M Pruijm
OBJECTIVE: The determination of renal tissue oxygenation by BOLD-MRI in chronic kidney disease (CKD) patients has given heterogeneous results, possibly due to the lack of a widely accepted procedure to analyze the R2* maps. We present a new technique for the analysis of renal BOLD-MRI called the twelve-layer concentric objects method (TLCO). We measured its reproducibility and assessed whether differences in the intra-renal distribution of R2* as a measure of oxygenation were detected between CKD patients and controls...
September 2016: Journal of Hypertension
https://www.readbyqxmd.com/read/27134123/copd-patients-with-severe-diffusion-defect-in-carbon-monoxide-diffusing-capacity-predict-a-better-outcome-for-pulmonary-rehabilitation
#16
H Sahin, I Naz, Y Varol, N Aksel, F Tuksavul, A Ozsoz
PURPOSE: The aim of this study was to compare the effects of pulmonary rehabilitation (PR) on six-minute walk test (6mWT) between chronic obstructive pulmonary disease (COPD) patients with moderate or severe carbon monoxide diffusion defects. We also evaluated dyspnea sensation, pulmonary functions, blood gases analysis, quality of life parameters and psychological symptoms in both groups before and after pulmonary rehabilitation. METHODS: Patients with COPD underwent a comprehensive 8-week out-patient PR program participated in this study...
November 2016: Revista Portuguesa de Pneumologia
https://www.readbyqxmd.com/read/27080864/role-of-cd248-as-a-potential-severity-marker-in-idiopathic-pulmonary-fibrosis
#17
Domokos Bartis, Louise E Crowley, Vijay K D'Souza, Lee Borthwick, Andrew J Fisher, Adam P Croft, Judit E Pongrácz, Richard Thompson, Gerald Langman, Christopher D Buckley, David R Thickett
BACKGROUND: CD248 or Endosialin is a transmembrane molecule expressed in stromal cells binding to extracellular matrix (ECM) components. It has been previously implicated in kidney fibrosis, rheumatoid arthritis as well as in tumour-stromal interactions. This study investigates the role of CD248 in the pathogenesis of fibrotic diseases in Idiopathic Pulmonary Fibrosis (IPF). METHODS: CD248 quantitative immunohistochemistry (IHC) was performed on lung samples from 22 IPF patients and its expression was assayed in cultured pulmonary fibroblasts and epithelial cells...
April 14, 2016: BMC Pulmonary Medicine
https://www.readbyqxmd.com/read/26585426/transfer-factor-lung-volumes-resistance-and-ventilation-distribution-in-healthy-adults
#18
Sylvia Verbanck, Alain Van Muylem, Daniel Schuermans, Ivan Bautmans, Bruce Thompson, Walter Vincken
Monitoring of chronic lung disease requires reference values of lung function indices, including putative markers of small airway function, spanning a wide age range.We measured spirometry, transfer factor of the lung for carbon monoxide (TLCO), static lung volume, resistance and ventilation distribution in a healthy population, studying at least 20 subjects per sex and per decade between the ages of 20 and 80 years.With respect to the Global Lung Function Initiative reference data, our subjects had average z-scores for forced expiratory volume in 1 s (FEV1), forced vital capacity (FVC) and FEV1/FVC of -0...
January 2016: European Respiratory Journal: Official Journal of the European Society for Clinical Respiratory Physiology
https://www.readbyqxmd.com/read/26578044/-women-smoking-in-the-tunisian-center-socio-demographic-characteristics-and-effects-on-functional-respiratory-parameters
#19
Sonia Rouatbi, Sonia Mezghenni, Malek Ayachi, Mohamed Benzarti
UNLABELLED: Objectives of this study were to describe sociodemographic characteristics of Tunisian woman smoker and to study her respiratory functional profile. METHODS: all women answered for a questionnaire and benefited of a total physical plethysmography and of a carbon monoxide lung transfer measure (TLCO). RESULTS: 101 smoking women were selected. These women consumed cigarettes (74 %), the snuff "neffa "(10 %) and the water pipe (15 %)...
May 2015: La Tunisie Médicale
https://www.readbyqxmd.com/read/26510211/structural-and-electronic-control-of-the-metal-to-insulator-transition-and-local-orderings-in-the-%C3%AE-bedt-ttf-2x-organic-conductors
#20
Pere Alemany, Jean-Paul Pouget, Enric Canadell
A first-principles density functional theory (DFT) study of [Formula: see text]-(BEDT-TTF)2X molecular conductors with X  =  I3, CsCo(SCN)4 (ambient pressure, 7.5 kbar and 10 kbar), CsZn(SCN)4, TlCo(SCN)4, RbCo(SCN)4 and RbZn(SCN)4 (220 K and 90 K) is reported. It is shown that these salts exhibit three different types of band structure each of them associated with a different physical behavior. In contrast with previous proposals it is found that the key electronic parameter behind the differences in the band structures is the intrastack transfer integral, t c ...
November 25, 2015: Journal of Physics. Condensed Matter: An Institute of Physics Journal
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