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Lung-protective ventilation

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https://www.readbyqxmd.com/read/27925446/the-declined-levels-of-inflammatory-cytokines-related-with-weaning-rate-during-period-of-septic-patients-using-ventilators
#1
Jung-Lung Hsiao, Chao-Huei Yang, Mei-Hua Lu, Hui-Ming Chang, Wang-Sheng Ko, Ya-Ling Chiou
INTRODUCTION: Approximately 50% of patients with sepsis-induced acute lung injury (ALI) and acute respiratory distress syndrome (ARDS) require mechanical ventilation. Patients with extended mechanical ventilator use routinely develop re-infections, which increases hospital stay, mortality, and health care cost. Some studies have pointed out inflammatory factors concentrations can affect ventilator weaning, but do not indicate changed inflammatory factors related to ventilator weaning during using ventilators...
December 7, 2016: Clinical Respiratory Journal
https://www.readbyqxmd.com/read/27925055/lung-protection-an-intervention-for-tidal-volume-reduction-in-a-teaching-intensive-care-unit
#2
Arturo Briva, Cristina Gaiero
Objective: To determine the effect of feedback and education regarding the use of predicted body weight to adjust tidal volume in a lung-protective mechanical ventilation strategy. Methods: The study was performed from October 2014 to November 2015 (12 months) in a single university polyvalent intensive care unit. We developed a combined intervention (education and feedback), placing particular attention on the importance of adjusting tidal volumes to predicted body weight bedside...
December 1, 2016: Revista Brasileira de Terapia Intensiva
https://www.readbyqxmd.com/read/27922742/the-diaphragm-acts-as-a-brake-during-expiration-to-prevent-lung-collapse
#3
Mariangela Pellegrini, Göran Hedenstierna, Agneta Roneus, Monica Segelsjö, Anders Larsson, Gaetano Perchiazzi
RATIONALE: The diaphragm is the major inspiratory muscle and is assumed to relax during expiration. However, electrical post-inspiratory activity has been observed. Whether or not there is an expiratory diaphragmatic contraction that preserves lung patency has yet to be explored. OBJECTIVE: We hypothesized the occurrence of an expiratory diaphragmatic contraction directed at stabilizing peripheral airways and preventing or reducing cyclic expiratory lung collapse...
December 6, 2016: American Journal of Respiratory and Critical Care Medicine
https://www.readbyqxmd.com/read/27911872/p120-regulates-beta-catenin-nuclear-translocation-through-e-cadherin-endocytosis-in-ventilator-induced-lung-injury
#4
Changping Gu, Chenyang Dai, Yongtao Sun, Mengjie Liu, Yuelan Wang, Xinyi Wu
Mechanical stretch induces epithelial barrier dysfunction by altering the location and degradation of cellular junction proteins. p120-catenin (p120) is a cell-cell junction protein known to protect against ventilator-induced lung injury (VILI) that results from improper ventilation of patients. In this study, we sought to determine the role of p120 in VILI and its relationship with the cellular response to mechanical stretch. Mouse lung epithelial cells (MLE-12) transfected with p120 siRNA, p120 cDNA, or E-cadherin siRNA were subjected to 20% cyclic stretch for 2 or 4 hours...
November 30, 2016: Oncotarget
https://www.readbyqxmd.com/read/27903339/-effect-of-goal-directed-haemodynamic-management-on-the-postoperative-outcome-in-elderly-patients-with-fragile-cardiac-function-undergoing-abdominal-surgery
#5
L S Zheng, E W Gu, X H Peng, L Zhang, Y Y Cao
Objective: To investigate the effect of goal-directed haemodynamic management based on stroke volume variation (SVV), cardiac index (CI) and mean arterial blood pressure (MAP) on the postoperative outcome in elderly patients with fragile cardiac function undergoing gastrointestinal surgery. Methods: Ninety patients with fragile cardiac function, aged 65-90 years old, ASAⅡ or Ⅲ, NYHA Ⅱor Ⅲ, scheduled for abdominal surgery were enrolled in this study.The patients were randomly assigned to two groups: Experience anesthesia group (group E, n=45) and goal-directed hemodynamic management group (G group, n=45)...
November 22, 2016: Zhonghua Yi Xue za Zhi [Chinese medical journal]
https://www.readbyqxmd.com/read/27903208/early-experience-of-a-new-extracorporeal-carbon-dioxide-removal-device-for-acute-hypercapnic-respiratory-failure
#6
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/27902842/vagal-denervation-inhibits-the-increase-in-pulmonary-blood-flow-during-partial-lung-aeration-at-birth
#7
Justin A R Lang, James T Pearson, Corinna Binder-Heschl, Megan J Wallace, Melissa L Siew, Marcus J Kitchen, Arjan B Te Pas, Robert A Lewis, Graeme R Polglase, Mikiyasu Shirai, Stuart B Hooper
Air entry into the lungs at birth triggers major cardiovascular changes, including a large increase in pulmonary blood flow (PBF) that is not spatially related to regional lung aeration. To investigate the possible underlying role of a vagally-mediated stimulus, we used simultaneous phase-contrast X-ray imaging and angiography in near-term (30 days of gestation) vagotomised (n = 15) or sham-operated (n = 15) rabbit kittens. Rabbits were imaged before ventilation, when one lung was ventilated (unilateral) with 100% nitrogen (N2 ), air or 100% oxygen (O2 ), before all kittens were switched to unilateral ventilation in air, then ventilation of both lungs using air...
November 30, 2016: Journal of Physiology
https://www.readbyqxmd.com/read/27900922/-extracorporeal-life-support-for-legionella-pneumonia
#8
W A C Koekkoek, C Savelkoul, P R Wijnandts, M Platenkamp, D W Donker, D H T Tjan
BACKGROUND: Legionella species cause 5% of all community acquired pneumonias. However, Legionella pneumonia results relatively often in admission to the intensive care unit (ICU). A significant complication is the development of acute respiratory distress syndrome (ARDS). The ICU mortality rate for Legionella pneumonia is > 30% with conventional treatments. CASE DESCRIPTION: A 64-year-old male was admitted to the ICU with respiratory failure due to Legionella pneumonia complicated by ARDS...
2016: Nederlands Tijdschrift Voor Geneeskunde
https://www.readbyqxmd.com/read/27898744/pre-exercise-hyperpnea-attenuates-exercise-induced-bronchoconstriction-without-affecting-performance
#9
Philipp A Eichenberger, Thomas A Scherer, Christina M Spengler
Whole-body warm-up exercises were shown to attenuate exercise-induced bronchoconstriction (EIB). Whether intense pre-exercise hyperpnea offers similar protection and whether this might negatively affect exercise performance is unknown. Nine subjects with EIB (25±5 yrs; forced expiratory volume in 1s [FEV1], 104±15% predicted) performed an exercise challenge (ECh) followed-after 30min-by a constant-load cycling test to exhaustion. The ECh was preceded by one of four conditions: by i) control warm-up (CON) or by 10min of normocapnic hyperpnea with partial rebreathing at either ii) 50% (WU50) or iii) variable intensity (8x 30s-80%/45s-30%; WU80/30), or at iv) 70% (WU70) of maximal voluntary ventilation...
2016: PloS One
https://www.readbyqxmd.com/read/27898437/how-best-to-set-the-ventilator-on-extracorporeal-membrane-lung-oxygenation
#10
Luciano Gattinoni, Tommaso Tonetti, Michael Quintel
PURPOSE OF REVIEW: Extracorporeal respiratory support in patients with acute respiratory distress syndrome is applied either as rescue maneuver for life-threatening hypoxemia or as a tool to reduce the harm of mechanical ventilation. Depending on the blood and gas flow, extracorporeal support may completely substitute the natural lung as a gas exchanger (high-flow venovenous bypass) or reduce the need for mechanical ventilation, enabling the removal of a fraction of the metabolically produced CO2...
November 24, 2016: Current Opinion in Critical Care
https://www.readbyqxmd.com/read/27894328/effect-of-driving-pressure-on-mortality-in-ards-patients-during-lung-protective-mechanical-ventilation%C3%A2-in-two-randomized-controlled-trials
#11
Claude Guérin, Laurent Papazian, Jean Reignier, Louis Ayzac, Anderson Loundou, Jean-Marie Forel
BACKGROUND: Driving pressure (ΔPrs) across the respiratory system is suggested as the strongest predictor of hospital mortality in patients with acute respiratory distress syndrome (ARDS). We wonder whether this result is related to the range of tidal volume (VT). Therefore, we investigated ΔPrs in two trials in which strict lung-protective mechanical ventilation was applied in ARDS. Our working hypothesis was that ΔPrs is a risk factor for mortality just like compliance (Crs) or plateau pressure (Pplat,rs) of the respiratory system...
November 29, 2016: Critical Care: the Official Journal of the Critical Care Forum
https://www.readbyqxmd.com/read/27876355/lung-protective-ventilatory-strategies-in-intubated-preterm-neonates-with-rds
#12
REVIEW
F Reiterer, B Schwaberger, T Freidl, G Schmölzer, G Pichler, B Urlesberger
This article provides a narrative review of lung-protective ventilatory strategies (LPVS) in intubated preterm infants with RDS. A description of strategies is followed by results on short-and long-term respiratory and neurodevelopmental outcomes. Strategies will include patient-triggered or synchronized ventilation, volume targeted ventilation, the technique of intubation, surfactant administration and rapid extubation to NCPAP (INSURE), the open lung concept, strategies of high-frequency ventilation, and permissive hypercapnia...
October 26, 2016: Paediatric Respiratory Reviews
https://www.readbyqxmd.com/read/27875409/extracorporeal-membrane-oxygenation-beyond-rescue-therapy-for-acute-respiratory-distress-syndrome
#13
Alain Combes, Nicolas Bréchot, Charles-Edouard Luyt, Matthieu Schmidt
PURPOSE OF REVIEW: This article summarizes the results of past and more recent series on venovenous extracorporeal membrane oxygenation (VV-ECMO) and discusses its potential indications beyond the rescue of patients with lung failure refractory to conventional mechanical ventilation. RECENT FINDINGS: Successful VV-ECMO treatment in patients with extremely severe influenza A(H1N1)-associated acute respiratory distress syndrome (ARDS) and positive results of the CESAR trial have led to an exponential use of the technology in recent years...
November 19, 2016: Current Opinion in Critical Care
https://www.readbyqxmd.com/read/27865481/the-influence-of-tethering-and-gravity-on-the-stability-of-compliant-liquid-lined-airways
#14
Jeremy Whang, Chandler Faulman, Thomas A Itin, Donald P Gaver
This study revolves around two simple questions: 1) how does pulmonary airway recruitment/de-recruitment (RecDer) depend on the tethering support provided by surrounding airways and alveoli, and 2) does airway angle of inclination (θ) influence airway stability? These two questions are critical to understanding the existence and prevention of atelectrauma, which may contribute to ventilator-induced lung injury (VILI). To address these questions, we develop PDMS 2mm ID compliant tubes that mimic pulmonary airways...
November 11, 2016: Journal of Biomechanics
https://www.readbyqxmd.com/read/27861175/transient-receptor-potential-vanilloid-4-and-serum-glucocorticoid-regulated-kinase-1-are-critical-mediators-of-lung-injury-in-overventilated-mice-in-vivo
#15
Laura Michalick, Lasti Erfinanda, Ulrike Weichelt, Markus van der Giet, Wolfgang Liedtke, Wolfgang M Kuebler
BACKGROUND: Mechanical ventilation can cause lung endothelial barrier failure and inflammation cumulating in ventilator-induced lung injury. Yet, underlying mechanotransduction mechanisms remain unclear. Here, the authors tested the hypothesis that activation of the mechanosensitive Ca channel transient receptor potential vanilloid (TRPV4) by serum glucocorticoid-regulated kinase (SGK) 1 may drive the development of ventilator-induced lung injury. METHODS: Mice (total n = 54) were ventilated for 2 h with low (7 ml/kg) or high (20 ml/kg) tidal volumes and assessed for signs of ventilator-induced lung injury...
November 18, 2016: Anesthesiology
https://www.readbyqxmd.com/read/27856731/airway-delivery-of-interferon-%C3%AE-overexpressing-macrophages-confers-resistance-to-mycobacterium-avium-infection-in-scid-mice
#16
Rajamouli Pasula, Bradley E Britigan, Banurekha Kesavalu, Maher Y Abdalla, William J Martin
Mycobacterium avium (M. avium) causes significant pulmonary infection, especially in immunocompromised hosts. Alveolar macrophages (AMs) represent the first line of host defense against infection in the lung. Interferon gamma (IFN-γ) activation of AMs enhances in vitro killing of pathogens such as M. avium We hypothesized that airway delivery of AMs into the lungs of immunodeficient mice infected with M. avium will inhibit M. avium growth in the lung and that this macrophage function is in part IFN-γ dependent...
November 2016: Physiological Reports
https://www.readbyqxmd.com/read/27850651/1013-an-ed-ventilator-protocol-increases-lung-protection-for-patients-at-risk-of-complications
#17
Brian Fuller, Ian Ferguson, Christopher Palmer, Anne Drewry, Brian Wessman, Enyo Ablordeppey, Nicholas Mohr, Marin Kollef
No abstract text is available yet for this article.
December 2016: Critical Care Medicine
https://www.readbyqxmd.com/read/27850625/987-lung-protective-ventilation-in-the-emergency-department-reduces-mortality-in-patients-with-ards
#18
Brian Fuller, Ian Ferguson, Christopher Palmer, Anne Drewry, Brian Wessman, Enyo Ablordeppey, Nicholas Mohr, Marin Kollef
No abstract text is available yet for this article.
December 2016: Critical Care Medicine
https://www.readbyqxmd.com/read/27850578/940-the-impact-of-an-ed-ventilator-protocol-on-adherence-to-lung-protective-ventilation-in-ards
#19
Brian Fuller, Ian Ferguson, Christopher Palmer, Anne Drewry, Brian Wessman, Enyo Ablordeppey, Nicholas Mohr, Marin Kollef
No abstract text is available yet for this article.
December 2016: Critical Care Medicine
https://www.readbyqxmd.com/read/27849731/51-emergency-department-lung-protective-ventilation-reduces-pulmonary-complications-the-lov-ed-trial
#20
Brian Fuller, Ian Ferguson, Christopher Palmer, Anne Drewry, Brian Wessman, Enyo Ablordeppey, Nicholas Mohr, Marin Kollef
No abstract text is available yet for this article.
December 2016: Critical Care Medicine
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