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Lung volume reduction

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https://www.readbyqxmd.com/read/28933358/substrate-deprivation-therapy-to-reduce-glycosaminoglycan-synthesis-improves-aspects-of-neurological-and-skeletal-pathology-in-mps-i-mice
#1
Ainslie L K Derrick-Roberts, Matilda R Jackson, Carmen E Pyragius, Sharon Byers
Mucopolysaccharidosis type I (MPS I) is the most common form of the MPS group of genetic diseases. MPS I results from a deficiency in the lysosomal enzyme α-l-iduronidase, leading to accumulation of undegraded heparan and dermatan sulphate glycosaminoglycan (GAG) chains in patient cells. MPS children suffer from multiple organ failure and die in their teens to early twenties. In particular, MPS I children also suffer from profound mental retardation and skeletal disease that restricts growth and movement. Neither brain nor skeletal disease is adequately treated by current therapy approaches...
February 23, 2017: Diseases (Basel)
https://www.readbyqxmd.com/read/28930639/50-years-of-research-in-ards-tidal-volume-selection-in-the-acute-respiratory-distress-syndrome
#2
Sarina K Sahetya, Jordi Mancebo, Roy G Brower
Mechanical ventilation (MV) is critical in the management of many patients with the acute respiratory distress syndrome (ARDS). However, MV can also cause ventilator-induced lung injury (VILI). The selection of an appropriate tidal volume is an essential part of a lung-protective MV strategy. Since the publication of a large randomized clinical trial demonstrating the benefit of lower tidal volumes, the use of tidal volumes of 6 mL/kg predicted body weight (PBW, based on sex and height) has been recommended in clinical practice guidelines...
September 20, 2017: American Journal of Respiratory and Critical Care Medicine
https://www.readbyqxmd.com/read/28922692/phosphodiesterase-4-inhibitors-for-chronic-obstructive-pulmonary-disease
#3
REVIEW
Jimmy Chong, Bonnie Leung, Phillippa Poole
BACKGROUND: Chronic obstructive pulmonary disease (COPD) is associated with cough, sputum production or dyspnoea and a reduction in lung function, quality of life and life expectancy. Apart from smoking cessation, there are no other treatments that slow lung function decline. Roflumilast and cilomilast are oral phosphodiesterase 4 (PDE4) inhibitors proposed to reduce the airway inflammation and bronchoconstriction seen in COPD. This is an update of a Cochrane review first published in 2011 and updated in 2013...
September 19, 2017: Cochrane Database of Systematic Reviews
https://www.readbyqxmd.com/read/28919730/a-new-functional-method-to-choose-the-target-lobe-for-lung-volume-reduction-in-emphysema-comparison-with-the-conventional-densitometric-method
#4
Juergen Hetzel, Michael Boeckeler, Marius Horger, Ahmed Ehab, Christopher Kloth, Robert Wagner, Lutz Freitag, Dirk-Jan Slebos, Richard Alexander Lewis, Maik Haentschel
BACKGROUND: Lung volume reduction (LVR) improves breathing mechanics by reducing hyperinflation. Lobar selection usually focuses on choosing the most destroyed emphysematous lobes as seen on an inspiratory CT scan. However, it has never been shown to what extent these densitometric CT parameters predict the least deflation of an individual lobe during expiration. The addition of expiratory CT analysis allows measurement of the extent of lobar air trapping and could therefore provide additional functional information for choice of potential treatment targets...
2017: International Journal of Chronic Obstructive Pulmonary Disease
https://www.readbyqxmd.com/read/28916844/left-sided-breast-cancer-and-risks-of-secondary-lung-cancer-and-ischemic-heart-disease-effects-of-modern-radiotherapy-techniques
#5
Stefanie Corradini, Hendrik Ballhausen, Helmut Weingandt, Philipp Freislederer, Stephan Schönecker, Maximilian Niyazi, Cristoforo Simonetto, Markus Eidemüller, Ute Ganswindt, Claus Belka
PURPOSE: Modern breast cancer radiotherapy techniques, such as respiratory-gated radiotherapy in deep-inspiration breath-hold (DIBH) or volumetric-modulated arc radiotherapy (VMAT) have been shown to reduce the high dose exposure of the heart in left-sided breast cancer. The aim of the present study was to comparatively estimate the excess relative and absolute risks of radiation-induced secondary lung cancer and ischemic heart disease for different modern radiotherapy techniques. METHODS: Four different treatment plans were generated for ten computed tomography data sets of patients with left-sided breast cancer, using either three-dimensional conformal radiotherapy (3D-CRT) or VMAT, in free-breathing (FB) or DIBH...
September 15, 2017: Strahlentherapie und Onkologie: Organ der Deutschen Röntgengesellschaft ... [et Al]
https://www.readbyqxmd.com/read/28913877/minimal-important-difference-of-target-lobar-volume-reduction-after-endobronchial-valve-treatment-for-emphysema
#6
Jorrit B A Welling, Jorine E Hartman, Eva M van Rikxoort, Nick H T Ten Hacken, Huib A M Kerstjens, Karin Klooster, Dirk-Jan Slebos
BACKGROUND AND OBJECTIVE: Target lobar volume reduction (TLVR) is an important efficacy outcome measure for bronchoscopic lung volume reduction (BLVR) treatment using one-way endobronchial valves (EBV) in patients with severe emphysema. The commonly used cut-off value for TLVR that expresses a perceivable clinical benefit is -350 mL. However, a scientifically determined minimal important difference (MID) for TLVR never has been published. The objective of the present study was to determine the MID for TLVR on HRCT in patients who were treated with EBV...
September 15, 2017: Respirology: Official Journal of the Asian Pacific Society of Respirology
https://www.readbyqxmd.com/read/28905341/use-of-a-powered-stapling-system-for-minimally-invasive-lung-volume-reduction-surgery-results-of-a-prospective-double-blind-single-center-randomized-trial
#7
Ali Akil, Michael Semik, Stefan Freermann, Jan Reichelt, Bassam Redwan, Dennis Görlich, Stefan Fischer
No abstract text is available yet for this article.
September 13, 2017: Thoracic and Cardiovascular Surgeon
https://www.readbyqxmd.com/read/28898423/iterative-volume-of-interest-based-4d-cone-beam-ct
#8
Rachael Martin, Moiz Ahmad, Geoffrey Hugo, Tinsu Pan
PURPOSE: 4D cone-beam CT (CBCT) has potential applications in soft tissue alignment and tumor motion verification at the time of radiation treatment. However, prominent streak artifacts with conventional image reconstructions have limited its clinical use and alternative reconstructions are generally too computationally expensive for the time available. We propose an iterative volume of interest based (I4D VOI) reconstruction technique, where 4D reconstruction is only performed within a VOI, to limit streak artifacts with limited added computation time...
September 12, 2017: Medical Physics
https://www.readbyqxmd.com/read/28898345/-endoscopic-lung-volume-reduction-in-advanced-pulmonary-emphysema-initial-experience-in-chile
#9
Sebastián Fernández-Bussy, Gonzalo Labarca, Iván Caviedes, Hiren J Mehta, Michael Jantz, Adnan Majid
Chronic obstructive pulmonary disease (COPD) has no curative treatment, and in moderate to advanced stages, functional parameters and quality of life are affected. Lung volume reduction improves respiratory parameters and quality of life of these patients. Endoscopic lung volume reduction is a minimally invasive procedure that uses endobronchial valves or coils. Valves are unidirectional, blocking the air from entering the target lobe during inspiration, allowing the exit of air and secretions during expiration...
May 2017: Revista Médica de Chile
https://www.readbyqxmd.com/read/28894914/effect-of-rituximab-on-pulmonary-function-in-bronchiolitis-obliterans-syndrome-due-to-graft-versus-host-disease
#10
Kyle R Brownback, Laura A Thomas, Joseph P McGuirk, Siddhartha Ganguly, Christopher Streiler, Sunil Abhyankar
PURPOSE: Rituximab is an anti-CD20 monoclonal antibody that is used to suppress B-cell function in graft-versus-host-disease (GVHD). We sought to determine the effects of rituximab treatment on lung function in those patients with bronchiolitis obliterans syndrome (BOS) as a manifestation of GVHD. METHODS: Thirteen patients were treated with rituximab with a diagnosis of BOS and a significant reduction in the forced expiratory volume in 1 s (FEV1) after hematopoietic stem cell transplantation (HSCT)...
September 11, 2017: Lung
https://www.readbyqxmd.com/read/28893857/changes-in-dynamic-lung-mechanics-after-lung-volume-reduction-coil-treatment-of-severe-emphysema
#11
Demosthenes Makris, Sylvie Leroy, Johana Pradelli, Jonathan Benzaquen, Hervé Guenard, Jeanne-Marie Perotin, Spyros Zakynthinos, Epaminondas Zakynthinos, Gaëtan Deslee, Charles Hugo Marquette
We assessed the relationships between changes in lung compliance, lung volumes and dynamic hyperinflation in patients with emphysema who underwent bronchoscopic treatment with nitinol coils (coil treatment) (n=11) or received usual care (UC) (n=11). Compared with UC, coil treatment resulted in decreased dynamic lung compliance (CLdyn) (p=0.03) and increased endurance time (p=0.010). The change in CLdyn was associated with significant improvement in FEV1 and FVC, with reduction in residual volume and intrinsic positive end-expiratory pressure, and with increased inspiratory capacity at rest/and at exercise...
September 11, 2017: Thorax
https://www.readbyqxmd.com/read/28891208/serum-microrna-150-predicts-prognosis-for-early-stage-non-small-cell-lung-cancer-and-promotes-tumor-cell-proliferation-by-targeting-tumor-suppressor-gene-srcin1
#12
Liren Zhang, Jing Lin, Yuanqing Ye, Taro Oba, Emanuela Gentile, Jie Lian, Jing Wang, Yang Zhao, Jian Gu, Ignacio I Wistuba, Jack A Roth, Lin Ji, Xifeng Wu
This integrative multistage study was aimed to identify circulating miRNAs as prognostic biomarkers and investigate treatment target for early-stage non-small cell lung cancer (NSCLC) patients. In stage I-II NSCLC patients, we screened and validated miRNA ratio signatures predictive of prognosis in serum. In tumor, we found that the expression of miR-150 in identified miRNA signatures was also associated with survival. Increased miR-150 expression promoted NSCLC cell proliferation and migration and vice versa...
September 10, 2017: Clinical Pharmacology and Therapeutics
https://www.readbyqxmd.com/read/28890195/gk-1-peptide-reduces-tumor-growth-decreases-metastatic-burden-and-increases-survival-in-a-murine-breast-cancer-model
#13
D Torres-García, A Pérez-Torres, K Manoutcharian, U Orbe, R Servín-Blanco, G Fragoso, E Sciutto
GK-1 is a parasite-derived peptide adjuvant of 18 amino acid-length that enhances T-cell function and increases survival in B16-F10 melanoma tumor-bearing mice. This study was designed to evaluate in vivo the antitumor efficacy of GK-1 on 4T1 mouse mammary carcinoma. BALB/c mice with palpable primary tumors were weekly intravenously injected three times with saline solution or three different concentrations (10, 50, or 100μg per mouse) of GK-1. GK-1 significantly increased lifespan (p<0.0001) and reduced the primary tumor weight (p=0...
September 7, 2017: Vaccine
https://www.readbyqxmd.com/read/28889896/bronchiectasis-complicating-lung-volume-reduction-coil-treatment
#14
Marie Pierre Debray, Armelle Marceau, Marie Christine Dombret, Vincent Bunel, Sylvie Leroy, Gaëtan Deslée, Hervé Mal
Endoscopic lung volume reduction has emerged over the past several years as a promising technique to improve the respiratory functional status of patients with advanced emphysema. Nevertheless, the procedure may be associated with various complications; among them, the development of bronchiectasis related to the coils has not yet been described. We report the case of a patient with emphysema who developed localized bronchiectasis at the site of coil insertion several months after lung volume reduction coil treatment...
September 2017: Chest
https://www.readbyqxmd.com/read/28885080/survival-of-localized-nsclc-patients-without-active-treatment-or-treated-with-sbrt
#15
S S Jeppesen, N C G Hansen, T Schytte, O Hansen
BACKGROUND: Little information on the natural history of patients with localized NSCLC is available since many of the studies covering the subject lack information on pathological confirmation, staging procedures and comorbidity. No randomized studies have compared SBRT with no treatment for patients with localized NSCLC. The purpose of this study was to evaluate whether SBRT has influence on overall survival for patients with localized NSCLC and investigate the effect of baseline ventilatory lung function on overall survival...
September 8, 2017: Acta Oncologica
https://www.readbyqxmd.com/read/28885054/a-multicenter-rct-of-zephyr%C3%A2-endobronchial-valve-treatment-in-heterogeneous-emphysema-transform
#16
Samuel V Kemp, Dirk-Jan Slebos, Alan Kirk, Malgorzata Kornaszewska, Kris Carron, Lars Ek, Gustav Broman, Gunnar Hillerdal, Herve Mal, Christophe Pison, Amandine Briault, Nicola Downer, Kaid Darwiche, Jagan Rao, Ralf-Harto Hübner, Christof Ruwwe-Glosenkamp, Valéry Trosini-Desert, Ralf Eberhardt, Felix J Herth, Eric Derom, Thomas Malfait, Pallav L Shah, Justin L Garner, Nick H Ten Hacken, Hazem Fallouh, Sylvie Leroy, Charles H Marquette
RATIONALE: Single-center RCTs of Zephyr Endobronchial Valve (EBV) treatment have demonstrated benefit in severe heterogeneous emphysema. This is the first multicenter study evaluating this treatment approach. OBJECTIVES: To evaluate the efficacy and safety of Zephyr EBVs in patients with heterogeneous emphysema and absence of collateral ventilation. METHODS: Prospective, multicenter 2:1 RCT of EBVs plus standard of care or standard of care (SoC) alone...
September 8, 2017: American Journal of Respiratory and Critical Care Medicine
https://www.readbyqxmd.com/read/28883926/clinical-use-of-nintedanib-in-patients-with-idiopathic-pulmonary-fibrosis
#17
REVIEW
Amy Hajari Case, Peace Johnson
Idiopathic pulmonary fibrosis (IPF) is a rare lung disease characterised by progressive loss of lung function, dyspnoea and cough. IPF has a variable clinical course but a poor prognosis. Nintedanib, a tyrosine kinase inhibitor, is one of two drugs approved for the treatment of IPF. In clinical trials, nintedanib slowed disease progression by reducing the rate of decline in forced vital capacity (FVC) in patients with IPF and mild or moderate lung function impairment. The effect of nintedanib was consistent across patient subgroups defined by baseline characteristics including FVC % predicted, diffusion capacity of the lung for carbon monoxide % predicted and the presence of emphysema...
2017: BMJ Open Respiratory Research
https://www.readbyqxmd.com/read/28876128/influence-of-inhaled-amiloride-on-lung-fluid-clearance-in-response-to-normobaric-hypoxia-in-healthy-individuals
#18
Courtney M Wheatley, Sarah E Baker, Bryan J Taylor, Manda L Keller-Ross, Steven C Chase, Alex R Carlson, Robert J Wentz, Eric M Snyder, Bruce D Johnson
Wheatley, Courtney M., Sarah E. Baker, Bryan J. Taylor, Manda L. Keller-Ross, Steven C. Chase, Alex R. Carlson, Robert J. Wentz, Eric M. Snyder, and Bruce D. Johnson. Influence of inhaled amiloride on lung fluid clearance in response to normobaric hypoxia in healthy individuals. High Alt Med Biol 00:000-000, 2017. AIM: To investigate the role of epithelial sodium channels (ENaC) on lung fluid clearance in response to normobaric hypoxia, 20 healthy subjects were exposed to 15 hours of hypoxia (fraction of inspired oxygen [FiO2] = 12...
September 6, 2017: High Altitude Medicine & Biology
https://www.readbyqxmd.com/read/28875330/liposomes-co-loaded-with-6-phosphofructo-2-kinase-fructose-2-6-biphosphatase-3-pfkfb3-shrna-plasmid-and-docetaxel-for-the-treatment-of-non-small-cell-lung-cancer
#19
Nusrat Chowdhury, Imran Vhora, Ketan Patel, Ravi Doddapaneni, Arindam Mondal, Mandip Singh
PURPOSE: Non-small cell lung cancer is the leading cause of cancer related deaths globally. Considering the side effects and diminishing chemosensitivity to chemotherapy, novel treatment approaches are sought. Hence, we aim to develop a liposomal co-delivery system of pDNA expressing shRNA against PFKFB3 (pshPFKFB3) and docetaxel (DTX). METHODS: Cationic DTX liposomes complexed with pshPFKFB3 (PSH-DL) were developed. In vitro cell line studies were performed to evaluate transfection, PFKFB3 mRNA silencing, cytotoxicity, pGP inhibition, and protein markers expression...
September 5, 2017: Pharmaceutical Research
https://www.readbyqxmd.com/read/28875324/-extreme-obesity-particular-aspect-of-invasive-and-noninvasive-ventilation
#20
REVIEW
M Deppe, P Lebiedz
The obesity rate is increasing worldwide and the percentage of obese patients in the intensive care unit (ICU) is rising concomitantly. Ventilatory support strategies in obese patients must take into account the altered pathophysiological conditions. Unfortunately, prospective randomized multicenter trials on this subject are lacking. Therefore, current strategies are based on the individual experiences of ICU physicians and single-center studies. Noninvasive ventilation (NIV) in critically ill patients with acute respiratory failure and obesity hypoventilation syndrome (OHS) is an efficient treatment option and should be provided as early as possible is an effort to avoid intubation...
September 5, 2017: Medizinische Klinik, Intensivmedizin und Notfallmedizin
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