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Ventilation in COPD

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https://www.readbyqxmd.com/read/28066591/relationship-between-polycythemia-and-in-hospital-mortality-in-chronic-obstructive-pulmonary-disease-patients-with-low-risk-pulmonary-embolism
#1
Lu Guo, Aamer Rasheed Chughtai, Hongli Jiang, Lingyun Gao, Yan Yang, Yang Yang, Yuejian Liu, Zhenliang Xie, Weimin Li
BACKGROUNDS: Pulmonary embolism (PE) is frequent in subjects with chronic obstructive pulmonary disease (COPD) and associated with high mortality. This multi-center retrospective study was performed to investigate if secondary polycythemia is associated with in-hospital mortality in COPD patients with low-risk PE. METHODS: We identified COPD patients with proven PE between October, 2005 and October, 2015. Patients in risk classes III-V on the basis of the PESI score were excluded...
November 2016: Journal of Thoracic Disease
https://www.readbyqxmd.com/read/28057131/-interaction-between-smoking-and-indoor-air-pollution-on-chronic-obstructive-pulmonary-diseases
#2
D X Pan, Y J Qian, C M Wang, Y Guo, Z Bian, K X Xie, L L Chen, Y D Zhang, Q Y Li
Objective: To investigate the prevalence of chronic obstructive pulmonary diseases (COPD) in Tongxiang, Zhejiang province, and analyze the interaction between smoking and indoor air pollution on COPD. Methods: Townships of Chongfu, Zhouquan, Gaoqiao, Shimen, Wuzhen were randomly selected from Tongxiang. All the local people aged 30-79 years were asked to receive questionnaire survey, physical examination and pulmonary function testing. FEV1max/FVC max≤0.7 was the criterion of COPD diagnosis. Logistic regression model was used to analyze the relationship between smoking/indoor air pollution and COPD, multiplied interaction between smoking and indoor air pollution was evaluated, Excel table prepared by Andersson et al...
November 10, 2016: Zhonghua Liu Xing Bing Xue za Zhi, Zhonghua Liuxingbingxue Zazhi
https://www.readbyqxmd.com/read/28055066/association-between-antipsychotic-agents-and-risk-of-acute-respiratory-failure-in-patients-with-chronic-obstructive-pulmonary-disease
#3
Meng-Ting Wang, Chen-Liang Tsai, Chen Wei Lin, Chin-Bin Yeh, Yun-Han Wang, Hui-Lan Lin
Importance: Acute respiratory failure (ARF) is a life-threatening event that has been linked in case reports to antipsychotic use, but this association lacks population-based evidence. Particular attention should be focused on patients with chronic obstructive pulmonary disease (COPD) regarding this drug safety concern because these patients are prone to ARF and are commonly treated with antipsychotics. Objective: To determine whether the use of antipsychotics is associated with an increased risk of ARF in patients with COPD...
January 4, 2017: JAMA Psychiatry
https://www.readbyqxmd.com/read/28047750/we-fg-206-08-pulmonary-functional-imaging-biomarkers-of-nsclc-to-guide-and-optimize-functional-lung-avoidance-radiotherapy
#4
Khadija Sheikh, Dante Pi Capaldi, Douglas A Hoover, David A Palma, Brian P Yaremko, Grace Parraga
PURPOSE: Functional lung avoidance radiotherapy promises optimized therapy planning by minimizing dose to well-functioning lung and maximizing dose to the rest of the lung. Patients with NSCLC commonly present with co-morbid COPD and heterogeneously distributed ventilation abnormalities stemming from emphysema, airways disease, and tumour burden. We hypothesized that pulmonary functional imaging methods may be used to optimize radiotherapy plans to avoid regions of well-functioning lung and significantly improve outcomes like quality-of-life and survival...
June 2016: Medical Physics
https://www.readbyqxmd.com/read/28044184/-outcome-predictors-for-copd-patients-hospitalized-for-acute-exacerbation
#5
M Spielmanns, F Axer, C Nell, A R Koczulla, T Boeselt, F Magnet, J H Storre, W Windisch
BACKGROUND: Prognostic factors for clinical failure of acute exacerbation in patients with COPD (AECOPD) are of special importance in order to choose an adequate therapy and resources during inpatient treatment. Our database was analyzed to identify predictors for a negative outcome. MATERIALS AND METHODS: In a retrospective analysis medical records of 616 patients (299 women; 317 men) hospitalized for AECOPD between January 2011 and January 2016 were analyzed in order to evaluate demographic and clinical parameters leading to adverse events...
January 2, 2017: Medizinische Klinik, Intensivmedizin und Notfallmedizin
https://www.readbyqxmd.com/read/28018674/early-phase-recovery-of-cardiorespiratory-measurements-after-maximal-cardiopulmonary-exercise-testing-in-patients-with-chronic-obstructive-pulmonary-disease
#6
Marie Bellefleur, David Debeaumont, Alain Boutry, Marie Netchitailo, Antoine Cuvelier, Jean-François Muir, Catherine Tardif, Jérémy Coquart
Background. This study investigated respiratory gas exchanges and heart rate (HR) kinetics during early-phase recovery after a maximal cardiopulmonary exercise test (CPET) in patients with chronic obstructive pulmonary disease (COPD) grouped according to airflow limitation. Methods. Thirty control individuals (control group: CG) and 81 COPD patients (45 with "mild" or "moderate" airflow limitation, COPDI-II, versus 36 with "severe" or "very severe" COPD, COPDIII-IV) performed a maximal CPET. The first 3 min of recovery kinetics was investigated for oxygen uptake ([Formula: see text]O2), minute ventilation ([Formula: see text]), respiratory equivalence, and HR...
2016: Pulmonary Medicine
https://www.readbyqxmd.com/read/28008651/determinants-of-pre-transplantation-pectoralis-muscle-area-and-post-transplantation-change-in-pectoralis-muscle-area-in-lung-transplant-recipients
#7
Van Hoang, Gloria W Li, Christina C Kao, Goutham Dronavalli, Amit D Parulekar
BACKGROUND: This study aimed to determine predictors of pectoralis muscle area (PMA) and assess change in PMA following lung transplantation and its relationship to outcomes. METHODS: A retrospective review of 88 lung transplant recipients at a single center was performed. PMA was determined on a single axial slice from chest computerized tomography. Pectoralis muscle index (PMI) was calculated from the PMA divided by the height squared. RESULTS: PMI decreased post transplantation (8...
December 23, 2016: Clinical Transplantation
https://www.readbyqxmd.com/read/28007621/instability-of-willingness-to-accept-life-sustaining-treatments-of-patients-with-advanced-chronic-organ-failure-during-one-year
#8
Carmen H M Houben, Martijn A Spruit, Jos M G A Schols, Emiel F M Wouters, Daisy J A Janssen
BACKGROUND: For optimal end-of-life decision-making, it is important to understand the stability of patients' treatment preferences. The aim of this article is to examine stability of willingness to accept life-sustaining treatments during one-year follow-up in Dutch patients with advanced chronic organ failure. In addition, we want to explore the association between willingness to accept high-burden treatment and preferences for cardiopulmonary resuscitation (CPR) and mechanical ventilation (MV)...
December 19, 2016: Chest
https://www.readbyqxmd.com/read/27997255/emphysema-on-thoracic-ct-and-exercise-ventilatory-inefficiency-in-mild-to-moderate-copd
#9
Joshua H Jones, Joel T Zelt, Daniel M Hirai, Camilla V Diniz, Aida Zaza, Denis E O'Donnell, J Alberto Neder
There is growing evidence that emphysema on thoracic computed tomography (CT) is associated with poor exercise tolerance in COPD patients with only mild-to-moderate airflow obstruction. We hypothesized that an excessive ventilatory response to exercise (ventilatory inefficiency) would underlie these abnormalities. In a prospective study, 19 patients (FEV1 = 82 ± 13%, 12 Global Initiative for Chronic Obstructive Lung Disease (GOLD) stage 1) and 26 controls underwent an incremental exercise test. Ventilatory inefficiency was assessed by the ventilation ([Formula: see text]E)/CO2 output ([Formula: see text]CO2) nadir...
December 20, 2016: COPD
https://www.readbyqxmd.com/read/27997251/changes-of-respiratory-mechanics-in-copd-patients-from-stable-state-to-acute-exacerbations-with-respiratory-failure
#10
Piero Ceriana, Michele Vitacca, Annalisa Carlucci, Mara Paneroni, Lara Pisani, Stefano Nava
Symptoms, clinical course, functional and biological data during an exacerbation of chronic obstructive pulmonary disease (EXCOPD) have been investigated, but data on physiological changes of respiratory mechanics during a severe exacerbation with respiratory acidosis requiring noninvasive mechanical ventilation (NIMV) are scant. The aim of this study was to evaluate changes of respiratory mechanics in COPD patients comparing data observed during EXCOPD with those observed during stable state in the recovery phase...
December 20, 2016: COPD
https://www.readbyqxmd.com/read/27988055/role-of-first-line-noninvasive-ventilation-in-non-copd-subjects-with-pneumonia
#11
Gemma Rialp, Catalina Forteza, Daniel Muñiz, Maria Romero
INTRODUCTION: The use of noninvasive ventilation (NIV) in non-COPD patients with pneumonia is controversial due to its high rate of failure and the potentially harmful effects when NIV fails. The purpose of the study was to evaluate outcomes of the first ventilatory treatment applied, NIV or invasive mechanical ventilation (MV), and to identify predictors of NIV failure. METHODS: Historical cohort study of 159 non-COPD patients with pneumonia admitted to the ICU with ventilatory support...
December 14, 2016: Archivos de Bronconeumología
https://www.readbyqxmd.com/read/27984243/chronic-obstructive-pulmonary-disease-and-sleep-related-disorders
#12
Sheila C Tsai
PURPOSE OF REVIEW: Sleep related disorders are common and under-recognized in the chronic obstructive pulmonary disease (COPD) population. COPD symptoms can disrupt sleep. Similarly, sleep disorders can affect COPD. This review highlights the common sleep disorders seen in COPD patients, their impact, and potential management. RECENT FINDINGS: Treatment of sleep disorders may improve quality of life in COPD patients. Optimizing inhaler therapy improves sleep quality...
December 15, 2016: Current Opinion in Pulmonary Medicine
https://www.readbyqxmd.com/read/27973930/comorbidities-and-subgroups-of-patients-surviving-severe-acute-hypercapnic-respiratory-failure-in-the-icu
#13
Dan Adler, Jean-Louis Pépin, Elise Dupuis-Lozeron, Katerina Espa-Cervena, Roselyne Merlet-Violet, Hajo Muller, Jean-Paul Janssens, Laurent Brochard
RATIONALE: No methodical assessment of the lung, cardiac and sleep function of patients surviving an acute hypercapnic respiratory failure episode requiring admission to the intensive care unit (ICU) has been reported in the literature. OBJECTIVES: To prospectively investigate the prevalence and impact of comorbidities in patients treated by mechanical ventilator support (invasive or non-invasive) for acute hypercapnic respiratory failure in the ICU. METHODS: Seventy-eight consecutive patients admitted for an episode of acute hypercapnic respiratory failure underwent an assessment of lung, cardiac and sleep function by pulmonary function tests, transthoracic echocardiography and polysomnography 3 months after ICU discharge...
December 14, 2016: American Journal of Respiratory and Critical Care Medicine
https://www.readbyqxmd.com/read/27931057/-quantification-of-ventilation-inflammation-perfusion-and-structure-vips
#14
J Renne, J Vogel-Claussen
Technical innovation in pulmonary imaging during the recent years has led to a shift from morphological description of pulmonary pathologies to regional quantification of pulmonary function. This article summarizes current clinical standards in pulmonary imaging and introduces the reader to new innovative techniques of functional lung imaging. In the context of actual clinical studies for COPD, asthma, pulmonary hypertension and cystic fibrosis the application of quantitative imaging methods using computed tomography and magnetic resonance imaging is demonstrated and possible future applications are discussed...
December 2016: Pneumologie
https://www.readbyqxmd.com/read/27903208/early-experience-of-a-new-extracorporeal-carbon-dioxide-removal-device-for-acute-hypercapnic-respiratory-failure
#15
Ravindranath Tiruvoipati, Hergen Buscher, James Winearls, Jeff Breeding, Debasish Ghosh, Shimonti Chaterjee, Gary Braun, Eldho Paul, John F Fraser, John Botha
BACKGROUND: Recent advances in the technology of extracorporeal respiratory assist systems have led to a renewed interest in extracorporeal carbon dioxide removal (ECCOR). The Hemolung is a new, low-flow, venovenous, minimally invasive, partial ECCOR device that has recently been introduced to clinical practice to aid in avoiding invasive ventilation or to facilitate lung-protective ventilation. OBJECTIVE: We report our early experience on use, efficacy and safety of the Hemolung in three Australian intensive care units...
December 2016: Critical Care and Resuscitation: Journal of the Australasian Academy of Critical Care Medicine
https://www.readbyqxmd.com/read/27903026/-severe-hypercapnic-respiratory-failure-in-acute-exacerbation-of-copd-significance-of-ventilation-and-extracorporal-co2-removal
#16
Michael Westhoff, Martin Bachmann, Stephan Braune, Christian Karagiannidis, Stefan Kluge, Philipp M Lepper, Thomas Müller, Bernd Schönhofer
In acute exacerbations of COPD with acute hypercapnic respiratory failure and a pH 7.25 - 7.35, the initiation of non-invasive ventilation is the gold standard. However, absolute and relative contraindications have to be taken into account. The implementation of non-invasive ventilation in case of a severe respiratory acidosis necessitates a skilled therapeutic team and a close monitoring in order to avoid or perceive a NIV failure in time. In this case, the intubation and invasive mechanical ventilation is recommended...
November 2016: Deutsche Medizinische Wochenschrift
https://www.readbyqxmd.com/read/27889330/use-of-biologics-to-treat-acute-exacerbations-and-manage-disease-in-asthma-copd-and-ipf
#17
REVIEW
Lynne A Murray, Chris Grainge, Peter A Wark, Darryl A Knight
A common feature of chronic respiratory disease is the progressive decline in lung function. The decline can be indolent, or it can be accelerated by acute exacerbations, whereby the patient experiences a pronounced worsening of disease symptoms. Moreover, acute exacerbations may also be a marker of insufficient disease management. The underlying cause of an acute exacerbation can be due to insults such as pathogens or environmental pollutants, or the cause can be unknown. For each acute exacerbation, the patient may require medical intervention such as rescue medication, or in more severe cases, hospitalization and ventilation and have an increased risk of death...
January 2017: Pharmacology & Therapeutics
https://www.readbyqxmd.com/read/27888995/efficacy-of-non-invasive-ventilation-as-a-rescue-therapy-for-relieving-dyspnea-in-patients-with-stable-severe-copd
#18
Yong-Er Ou, Zhi-Min Lin, Wei-Liang Wu, Qun Luo, Rong-Chang Chen
Exertional Dyspnea is a troublesome symptom in chronic obstructive pulmonary disease (COPD) even after optimal therapy, which is a physiological and perceptional burden to limit their activities. Non-invasive ventilation (NIV) might provide rescue therapy for this population to relieve exertional dyspnea. This was a randomized crossover study in 18 patients with stable severe COPD. Exertional dyspnea was induced with maximal symptom-limited incremental cycle exercise. Then the patients would randomly receive oxygen or NIV plus oxygen therapy...
December 2016: Respiratory Medicine
https://www.readbyqxmd.com/read/27882425/assessment-of-regional-emphysema-air-trapping-and-xenon-ventilation-using-dual-energy-computed-tomography-in-chronic-obstructive-pulmonary-disease-patients
#19
Sang Min Lee, Joon Beom Seo, Hye Jeon Hwang, Namkug Kim, Sang Young Oh, Jae Seung Lee, Sei Won Lee, Yeon-Mok Oh, Tae Hoon Kim
OBJECTIVES: To compare the parenchymal attenuation change between inspiration/expiration CTs with dynamic ventilation change between xenon wash-in (WI) inspiration and wash-out (WO) expiration CTs. METHODS: 52 prospectively enrolled COPD patients underwent xenon ventilation dual-energy CT during WI and WO periods and pulmonary function tests (PFTs). The parenchymal attenuation parameters (emphysema index (EI), gas-trapping index (GTI) and air-trapping index (ATI)) and xenon ventilation parameters (xenon in WI (Xe-WI), xenon in WO (Xe-WO) and xenon dynamic (Xe-Dyna)) of whole lung and three divided areas (emphysema, hyperinflation and normal) were calculated on virtual non-contrast images and ventilation images...
November 23, 2016: European Radiology
https://www.readbyqxmd.com/read/27872166/consistency-of-medical-record-reporting-of-a-set-of-indicators-for-proactive-palliative-care-in-patients-with-chronic-obstructive-pulmonary-disease-a-pilot-study
#20
Ria G Duenk, Stans C Verhagen, Mireille Ae Janssen, Richard Pnr Dekhuijzen, Kris Cp Vissers, Yvonne Engels, Yvonne Heijdra
To identify patients hospitalized for an acute exacerbation of chronic obstructive pulmonary disease (COPD) who have a poor prognosis and might benefit from proactive palliative care, a set of indicators had been developed from the literature. A patient is considered eligible for proactive palliative care when meeting ≥2 criteria of the proposed set of 11 indicators. In order to develop a doctor-friendly and patient-convenient tool, our primary objective was to examine whether these indicators are documented consistently in the medical records...
November 21, 2016: Chronic Respiratory Disease
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