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Ventilation in COPD

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https://www.readbyqxmd.com/read/28927525/alpha-1-antitrypsin-deficiency-genetic-variations-clinical-manifestations-and-therapeutic-interventions
#1
REVIEW
Younis Mohammad Hazari, Arif Bashir, Mudasir Habib, Samirul Bashir, Huma Habib, M Abul Qasim, Naveed Nazir Shah, Ehtishamul Haq, Jeffrey Teckman, Khalid Majid Fazili
Alpha-1-antitrypsin (AAT) is an acute phase secretory glycoprotein that inhibits neutrophil proteases like elastase and is considered as the archetype of a family of structurally related serine-protease inhibitors termed serpins. Serum AAT predominantly originates from liver and increases three to five fold during host response to tissue injury and inflammation. The AAT deficiency is unique among the protein-misfolding diseases in that it causes target organ injury by both loss-of-function and gain-of-toxic function mechanisms...
July 2017: Mutation Research
https://www.readbyqxmd.com/read/28926214/diagnosis-and-management-of-acute-exacerbations-of-chronic-obstructive-pulmonary-disease
#2
Van Holden, Donald Slack III, Michael T. McCurdy, Nirav G. Shah
Acute exacerbation of chronic obstructive pulmonary disease (COPD) is a clinical diagnosis that is based on changes in dyspnea, cough, and/or sputum production in a COPD patient; however, patients presenting with an acute exacerbation may be undiagnosed or have a variety of comorbid conditions that can complicate diagnosis. This issue presents strategies and algorithms for the early use of evidence-based interventions, including appropriate use of antibiotics, bronchodilators, and corticosteroids, along with noninvasive ventilation with capnography, to minimize morbidity and mortality associated with this disease...
October 2017: Emergency Medicine Practice
https://www.readbyqxmd.com/read/28915393/the-comparative-effectiveness-of-noninvasive-and-invasive-ventilation-in-patients-with-pneumonia
#3
Mihaela S Stefan, Aruna Priya, Penelope S Pekow, Tara Lagu, Jay S Steingrub, Nicholas S Hill, Brian H Nathanson, Peter K Lindenauer
PURPOSE: To compare the outcomes of patients hospitalized with pneumonia treated with noninvasive ventilation (NIV) and invasive mechanical ventilation (IMV). MATERIALS AND METHODS: Using the HealthFacts multihospital electronic medical record database, we included patients hospitalized with a diagnosis of pneumonia and treated with NIV or IMV. We developed a propensity model for receipt of initial NIV and assessed the outcomes in a propensity-matched cohort, and in a covariate adjusted and propensity score weighted models...
May 23, 2017: Journal of Critical Care
https://www.readbyqxmd.com/read/28898345/-endoscopic-lung-volume-reduction-in-advanced-pulmonary-emphysema-initial-experience-in-chile
#4
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/28892951/outcomes-of-mechanically-ventilated-critically-ill-geriatric-patients-in-intensive-care-unit
#5
Vivek Aggarwal, Rajeshwar Singh, Jung Bahadur Singh, Jps Bawa, Nimish Gaur, Sandeep Kumar, I V Nagesh
INTRODUCTION: Increase in life expectancy across the globe has led to rise in geriatric population. Geriatric population is now living longer and healthier. This rise in geriatric population has also led to increase in the geriatric ailments leading to increased number of geriatric patients requiring intensive care including mechanical ventilation. Data on outcomes of geriatric patients requiring mechanical ventilation from India is scarce. AIM: To study the profile and outcome of geriatric patients more than equal to 60 years requiring mechanical ventilation in Intensive Care Unit (ICU)...
July 2017: Journal of Clinical and Diagnostic Research: JCDR
https://www.readbyqxmd.com/read/28890079/the-effect-of-chronic-pulmonary-disease-and-mechanical-ventilation-on-corneal-donor-endothelial-cell-density-and-transplant-suitability
#6
Jordan A Margo, Martha F Whiting, Clayton H Brown, Caroline K Hoover, Wuqaas M Munir
PURPOSE: To determine how chronic obstructive pulmonary disease (COPD) and mechanical ventilation time affect corneal donor endothelial cell density (ECD) and transplant suitability. DESIGN: Retrospective cohort study METHODS: Setting: institutional Study Population: 39,679 cornea donor eyes from SightLife Eye Bank between 2012-2016. Demographics, death to preservation time, ECD, lens status, medical history, time on mechanical ventilation, and suitability for transplantation were included...
September 7, 2017: American Journal of Ophthalmology
https://www.readbyqxmd.com/read/28886850/transcatheter-aortic-valve-implantation-versus-surgical-aortic-valve-replacement-in-lower-surgical-risk-patients-with-chronic-obstructive-pulmonary-disease
#7
Vincent Auffret, Victor Becerra Munoz, Aurélie Loirat, Eric Dumont, Hervé Le Breton, Jean-Michel Paradis, Daniel Doyle, Robert De Larochellière, Siamak Mohammadi, Jean-Philippe Verhoye, François Dagenais, Marc Bedossa, Dominique Boulmier, Guillaume Leurent, Lluis Asmarats, Ander Regueiro, Chekrallah Chamandi, Tania Rodriguez-Gabella, Emile Voisine, Anne-Sophie Moisan, Martin Thoenes, Mélanie Côté, Rishi Puri, Pierre Voisine, Josep Rodés-Cabau
Respiratory complications are a major factor contributing to postoperative morbidity and mortality, especially in patients with chronic obstructive pulmonary disease (COPD). Our objective was to compare the rate of respiratory complications in patients with COPD with severe aortic stenosis who underwent transcatheter aortic valve implantation (TAVI) versus surgical aortic valve replacement (SAVR). Low-to-intermediate surgical-risk patients with moderate or severe COPD who underwent TAVI or SAVR at 2 tertiary centers were included in this study...
August 7, 2017: American Journal of Cardiology
https://www.readbyqxmd.com/read/28870157/ten-important-articles-on-noninvasive-ventilation-in-critically-ill-patients-and-insights-for-the-future-a-report-of-expert-opinions
#8
A Cortegiani, V Russotto, M Antonelli, E Azoulay, A Carlucci, G Conti, A Demoule, M Ferrer, N S Hill, S Jaber, P Navalesi, P Pelosi, R Scala, C Gregoretti
BACKGROUND: Noninvasive ventilation is used worldwide in many settings. Its effectiveness has been proven for common clinical conditions in critical care such as cardiogenic pulmonary edema and chronic obstructive pulmonary disease exacerbations. Since the first pioneering studies of noninvasive ventilation in critical care in the late 1980s, thousands of studies and articles have been published on this topic. Interestingly, some aspects remain controversial (e.g. its use in de-novo hypoxemic respiratory failure, role of sedation, self-induced lung injury)...
September 4, 2017: BMC Anesthesiology
https://www.readbyqxmd.com/read/28860742/severe-exacerbation-and-pneumonia-in-copd-patients-treated-with-fixed-combinations-of-inhaled-corticosteroid-and-long-acting-beta2-agonist
#9
Hsi-Hsing Yang, Chih-Cheng Lai, Ya-Hui Wang, Wei-Chih Yang, Cheng-Yi Wang, Hao-Chien Wang, Likwang Chen, Chong-Jen Yu
BACKGROUND: It remains unclear whether severe exacerbation and pneumonia of COPD differs between patients treated with budesonide/formoterol and those treated with fluticasone/salmeterol. Therefore, we conducted a comparative study of those who used budesonide/formoterol and those treated with fluticasone/salmeterol for COPD. METHODS: Subjects in this population-based cohort study comprised patients with COPD who were treated with a fixed combination of budesonide/formoterol or fluticasone/salmeterol...
2017: International Journal of Chronic Obstructive Pulmonary Disease
https://www.readbyqxmd.com/read/28858033/cardiorespiratory-responses-to-short-bouts-of-resistance-training-exercises-in-individuals-with-chronic-obstructive-pulmonary-disease-a-comparison-of-exercise-intensities
#10
Priscila Robles, Tamara Araujo, Dina Brooks, Karl Zabjek, Tania Janaudis-Ferreira, Susan Marzolini, Roger Goldstein, Sunita Mathur
PURPOSE: Resistance training is recommended in pulmonary rehabilitation for people with chronic obstructive pulmonary disease (COPD); however, the acute cardiorespiratory responses to different intensities of resistance training are not known. We compared acute cardiorespiratory responses with high-intensity versus low-intensity resistance exercises in persons with COPD and healthy, matched controls. This research may assist in developing training parameters in COPD. METHODS: Participants (n = 10 per group) performed 1 set of 10 repetitions of leg extension and arm elevation at 2 intensities: 40% (low) and 80% (high) of 1-repetition maximum...
September 2017: Journal of Cardiopulmonary Rehabilitation and Prevention
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
#11
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/28851800/the-chinese-version-of-the-severe-respiratory-insufficiency-questionnaire-for-patients-with-chronic-hypercapnic-chronic-obstructive-pulmonary-disease-receiving-non-invasive-positive-pressure-ventilation
#12
Rongchang Chen, Lili Guan, Weiliang Wu, Zhicong Yang, Xiaoying Li, Qun Luo, Zhenyu Liang, Fengyan Wang, Bingpeng Guo, Yating Huo, Yuqiong Yang, Luqian Zhou
OBJECTIVES: The Severe Respiratory Insufficiency (SRI) questionnaire is the best assessment tool for health-related quality of life in patients with chronic obstructive pulmonary disease (COPD) receiving non-invasive positive pressure ventilation (NIPPV). This study aimed to translate the SRI Questionnaire into Chinese and to validate it. DESIGN: Prospective validation study. SETTING AND PARTICIPANTS: A total of 149 participants with chronic hypercapnic COPD receiving NIPPV completed the study...
August 28, 2017: BMJ Open
https://www.readbyqxmd.com/read/28843663/risk-factors-and-outcomes-of-critically-ill-patients-with-acute-brain-failure-a-novel-end-point
#13
Tarun D Singh, John C O'Horo, Ognjen Gajic, Amra Sakusic, Courtney N Day, Jay Mandrekar, Rahul Kashyap, Dereddi Raja Shekar Reddy, Alejandro A Rabinstein
OBJECTIVE: To determine the incidence, risk factors and outcomes of acute brain failure (ABF) in a mixed medical and surgical cohort of critically ill patients and its effect on ICU & hospital mortality. DESIGN: Observational electronic medical record (EMR) based retrospective cohort study of critically ill patients admitted to the ICU between 2006 and 2013. SETTING: Tertiary academic medical center. PATIENTS: Consecutive adult (>18years) critically ill patients admitted to medical and surgical ICUs...
August 18, 2017: Journal of Critical Care
https://www.readbyqxmd.com/read/28839495/survival-of-hypercapnic-patients-with-copd-and-obesity-hypoventilation-syndrome-treated-with-high-intensity-non-invasive-ventilation-in-the-daily-routine-care
#14
Thomas Blankenburg, Christin Benthin, Stefanie Pohl, Anett Bramer, Frank Kalbitz, Christine Lautenschläger, Wolfgang Schütte
BACKGROUND: Home ventilation is an effective treatment option for obesity hypoventilation syndrome (OHS). This therapy is still controversial for stable chronic obstructive pulmonary disease (COPD). A recent study showed reduced mortality for COPD patients receiving home ventilation with high inflation pressures and back-up respiratory rates [so called High Intensity non-invasive ventilation (NIV)]. OBJECTIVE: The purpose of this study is whether High Intensity NIV applied in the routine care of COPD and OHS patients can lead to CO2 reduction and survival data comparable to data from controlled studies...
2017: Open Respiratory Medicine Journal
https://www.readbyqxmd.com/read/28814848/pathophysiological-mechanism-of-long-term-noninvasive-ventilation-in-stable-hypercapnic-patients-with-copd-using-functional-respiratory-imaging
#15
Bita Hajian, Jan De Backer, Claire Sneyers, Francisca Ferreira, Katherine C Barboza, Glenn Leemans, Wim Vos, Wilfried De Backer
INTRODUCTION: Patients with severe COPD often develop chronic hypercapnic respiratory failure. Their prognosis worsens and they are more likely to develop exacerbations. This has major influence on the health-related quality of life. Currently, there is no information about the success of long-term noninvasive ventilation (NIV) among patients who receive NIV in acute settings. Also, little is known about the pathophysiological mechanism of NIV. METHODS: Ten Global Initiative for Obstructive Lung Disease stage III and IV COPD patients with respiratory failure who were hospitalized following acute exacerbation were treated with NIV using a Synchrony BiPAP device for 6 months...
2017: International Journal of Chronic Obstructive Pulmonary Disease
https://www.readbyqxmd.com/read/28812150/respiratory-complications-after-colonic-procedures-in-chronic-obstructive-pulmonary-disease-does-laparoscopy-offer-a-benefit
#16
Sarath Sujatha-Bhaskar, Reza Fazl Alizadeh, Colette S Inaba, Christina Y Koh, Mehraneh D Jafari, Steven D Mills, Joseph C Carmichael, Michael J Stamos, Alessio Pigazzi
BACKGROUND: Patients with severe chronic obstructive pulmonary disease (COPD) are at a higher risk for postoperative respiratory complications. Despite the benefits of a minimally invasive approach, laparoscopic pneumoperitoneum can substantially reduce functional residual capacity and raise alveolar dead space, potentially increasing the risk of respiratory failure which may be poorly tolerated by COPD patients. This raises controversy as to whether open techniques should be preferentially employed in this population...
August 15, 2017: Surgical Endoscopy
https://www.readbyqxmd.com/read/28810276/-home-mechanical-ventilation-concepts-and-therapy-recommendations
#17
Sarah Bettina Schwarz, Friederike Sophie Magnet, Bernd Schönhofer, Wolfram Windisch
The prognosis of patients receiving home mechanical ventilation is very heterogeneous and depends on the underlying disease, the degree of respiratory dependency and the comorbidities. Due to the severe chronic diseases, the initiation of a long-term NIV must be done during an inpatient treatment. Two recently published randomized controlled trials using more aggressive forms of NPPV targeted at normalizing hypercapnic PaCO2 values, showed improved long term survival also in patients with an underlying diagnosis of COPD...
August 2017: Deutsche Medizinische Wochenschrift
https://www.readbyqxmd.com/read/28795334/mathematical-modeling-of-extracorporeal-co2-removal-therapy-a-validation-carried-out-on-ten-pigs
#18
Simon Habran, Thomas Desaive, Philippe Morimont, Bernard Lambermont, Pierre Dauby
The extracorporeal CO2 removal device (ECCO2RD) is used in clinics to treat patients suffering from respiratory failures like acute respiratory distress syndrome (ARDS) or chronic obstructive pulmonary disease (COPD). The aim of this device is to decarboxylate blood externally with low blood flow. A mathematical model is proposed to describe protective ventilation, ARDS, and an extracorporeal CO2 removal therapy (ECCO2RT). The simulations are compared with experimental data carried out on ten pigs. The results show a good agreement between the mathematical simulations and the experimental data, which provides a nice validation of the model...
August 9, 2017: Medical & Biological Engineering & Computing
https://www.readbyqxmd.com/read/28790813/asynchrony-in-respiratory-movements-between-the-pulmonary-lobes-in-patients-with-copd-continuous-measurement-of-lung-density-by-4-dimensional-dynamic-ventilation-ct
#19
Tsuneo Yamashiro, Hiroshi Moriya, Shin Matsuoka, Yukihiro Nagatani, Maho Tsubakimoto, Nanae Tsuchiya, Sadayuki Murayama
PURPOSE: Four-dimensional dynamic-ventilation CT imaging demonstrates continuous movement of the lung. The aim of this study was to assess the correlation between interlobar synchrony in lung density and spirometric values in COPD patients and smokers, by measuring the continuous changes in lung density during respiration on the dynamic-ventilation CT. MATERIALS AND METHODS: Thirty-two smokers, including ten with COPD, underwent dynamic-ventilation CT during free breathing...
2017: International Journal of Chronic Obstructive Pulmonary Disease
https://www.readbyqxmd.com/read/28790180/pseudomonas-aeruginosa-lasb-protease-impairs-innate-immunity-in-mice-and-humans-by-targeting-a-lung-epithelial-cystic-fibrosis-transmembrane-regulator-il-6-antimicrobial-repair-pathway
#20
Vinciane Saint-Criq, Bérengère Villeret, Fabien Bastaert, Saadé Kheir, Aurélie Hatton, Aurélie Cazes, Zhou Xing, Isabelle Sermet-Gaudelus, Ignacio Garcia-Verdugo, Aleksander Edelman, Jean-Michel Sallenave
BACKGROUND: Pseudomonas aeruginosa lung infections are a huge problem in ventilator-associated pneumonia, cystic fibrosis (CF) and in chronic obstructive pulmonary disease (COPD) exacerbations. This bacterium secretes virulence factors that may subvert host innate immunity. OBJECTIVE: We evaluated the effect of P. aeruginosa elastase LasB, an important virulence factor secreted by the type II secretion system, on ion transport, innate immune responses and epithelial repair, both in vitro and in vivo...
August 8, 2017: Thorax
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