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Littérature scientifique sur le sujet « Ventilation – Mer »

Auteur : Grafiati
Publié le 14 décembre 2024

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Articles de revues sur le sujet "Ventilation – Mer"

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ORJIME, Emmanuel Verem, Benjamin G. AHULE, Godwin A. AKPEHE, Solomon GBAKA, Victor Ushahemba IJIRSHAR, and Kafayat O. ZAKA. "Indigenous Preservation Practices and Shelf Life of Stored Yams in Benue State, Nigeria: Implication for Post-Harvest Management and Food Security." MANAGEMENT AND ECONOMICS REVIEW 9, no. 1 (2024): 25–40. http://dx.doi.org/10.24818/mer/2024.01-02.

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Several empirical studies have been conducted on the relationship between indigenous practices and yam tuber preservation. However, there is a lack of empirical evidence regarding the extent of effectiveness of the existing indigenous preservation practices in reducing yam postharvest losses with regard to prolonging the shelf life, which underscores an existing gap in knowledge. The purpose of this study is to examine the extent of effectiveness of existing indigenous preservation practices in prolonging the shelf life of stored yam tubers in Benue State, Nigeria, using a cross-sectional surv
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Ricard, Jean-Damien, Fadia Dib, Marina Esposito-Farese, Jonathan Messika, and Christophe Girault. "Comparison of high flow nasal cannula oxygen and conventional oxygen therapy on ventilatory support duration during acute-on-chronic respiratory failure: study protocol of a multicentre, randomised, controlled trial. The ‘HIGH-FLOW ACRF’ study." BMJ Open 8, no. 9 (2018): e022983. http://dx.doi.org/10.1136/bmjopen-2018-022983.

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IntroductionThis study protocol describes a trial designed to investigate whether high-flow heated and humidified nasal oxygen (HFHO) therapy in patients with hypercapnic acute respiratory failure (ARF) reduces the need of non-invasive ventilation (NIV).Methods and analysisThis is an open-label, superiority, international, parallel-group, multicentre randomised controlled two-arm trial, with an internal feasibility pilot phase. 242 patients with hypercapnic ARF requiring NIV admitted to an intensive care unit, an intermediate care or a respiratory care unit will be randomised in a 1:1 ratio to
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Heglum, Margareth, Marita Flasnes, and Susan Saga. "Barrierer for å ta i bruk høy PEEP og lungerekruttering ved generell anestesi til pasienter med fedme." Inspira 15, no. 2 (2020): 16–24. http://dx.doi.org/10.23865/inspira.v15.2764.

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Merk: Følgende artikkel ble utgitt før tidsskriftet gikk over til åpen digital publisering. Vedlagte PDF er hentet fra trykt utgave, se egen informasjon om opphavsrett på artikkelen.
 Bakgrunn: Grunnet økende fedme i befolkningen, vil en større andel av pasienter i generell anestesi være pasienter med fedme. Generell anestesi og mekanisk ventilering fører til at omtrent 90 % utvikler atelektaser. Pasienter med fedme får atelektaser tidligere og i større grad enn den normalvektige, dette kan vise seg som redusert gassutveksling og hypoksi peroperativt. Dette øker risikoen for postoperative
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Nikolla, Dhimitri A., Brandon J. Kramer, and Jestin N. Carlson. "A Cross-Over Trial Comparing Conventional to Compression-Adjusted Ventilations with Metronome-Guided Compressions." Prehospital and Disaster Medicine 34, no. 02 (2019): 220–23. http://dx.doi.org/10.1017/s1049023x19000098.

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Introduction:Hyperventilation during cardiopulmonary resuscitation (CPR) negatively affects cardiopulmonary physiology. Compression-adjusted ventilations (CAVs) may allow providers to deliver ventilation rates more consistently than conventional ventilations (CVs). This study sought to compare ventilation rates between these two methods during simulated cardiac arrest.Null Hypothesis:That CAV will not result in different rates than CV in simulated CPR with metronome-guided compressions.Methods:Volunteer Basic Life Support (BLS)-trained providers delivered bag-valve-mask (BVM) ventilations duri
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Lacerda, Rodrigo Silva, Fernando Cesar Anastácio de Lima, Leonardo Pereira Bastos, et al. "Benefits of Manometer in Non-Invasive Ventilatory Support." Prehospital and Disaster Medicine 32, no. 6 (2017): 615–20. http://dx.doi.org/10.1017/s1049023x17006719.

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AbstractIntroductionEffective ventilation during cardiopulmonary resuscitation (CPR) is essential to reduce morbidity and mortality rates in cardiac arrest. Hyperventilation during CPR reduces the efficiency of compressions and coronary perfusion.ProblemHow could ventilation in CPR be optimized? The objective of this study was to evaluate non-invasive ventilator support using different devices.MethodsThe study compares the regularity and intensity of non-invasive ventilation during simulated, conventional CPR and ventilatory support using three distinct ventilation devices: a standard manual r
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Ge, Wu, Wu Wei, Pan Shuang, Zheng Yan-Xia, and Lv Ling. "Nasointestinal tube in mechanical ventilation patients is more advantageous." Open Medicine 14, no. 1 (2019): 426–30. http://dx.doi.org/10.1515/med-2019-0045.

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AbstractObjectiveTo assess the effects of two different nutritional mode on the occurrence of ventilator-associated pneumonia (VAP) in patients on mechanical ventilation.Methods70 patients admitted to the ICU and under mechanical ventilation, were randomly divided into the nasointestinal tube group and nasogastric tube group. Patients from both groups received enteral nutrition, using the same nutritional agent, through intubation. The duration of stay in the ICU, duration of mechanical ventilation, incidence of VAP, nutritional state, and survival of the intestinal tract were compared between
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Be’eri, Eliezer, Simon Owen, Maurit Beeri, Scott R. Millis, and Arik Eisenkraft. "A Chemical-Biological-Radio-Nuclear (CBRN) Filter can be Added to the Air-Outflow Port of a Ventilator to Protect a Home Ventilated Patient From Inhalation of Toxic Industrial Compounds." Disaster Medicine and Public Health Preparedness 12, no. 6 (2018): 739–43. http://dx.doi.org/10.1017/dmp.2018.3.

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AbstractObjectivesChemical-biological-radio-nuclear (CBRN) gas masks are the standard means for protecting the general population from inhalation of toxic industrial compounds (TICs), for example after industrial accidents or terrorist attacks. However, such gas masks would not protect patients on home mechanical ventilation, as ventilator airflow would bypass the CBRN filter. We therefore evaluated in vivo the safety of adding a standard-issue CBRN filter to the air-outflow port of a home ventilator, as a method for providing TIC protection to such patients.MethodsEight adult patients were in
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Fancev, Tomislav, Davor Grgić, and Siniša Šadek. "Verification of GOTHIC Multivolume Containment Model during NPP Krško DBA LOCA." Journal of Energy - Energija 65, no. 3-4 (2022): 116–26. http://dx.doi.org/10.37798/2016653-4118.

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New containment multivolume model of NPP Krsko for GOTHIC code is developed. It is based on plant drawings and other available data. It is supported by developed SketchUp 3D containment model. The model is subdivided in volumes following physical boundaries and clearly defined flow paths. All important concrete heat structures are taken into account. Metal heat structures are based on plant’s SAR Chapter 6 licensing model. RCFC (Reactor Containment Fan Cooler) units are explicitly modelled as well as all main ventilation ducts. The model includes two trains of containment spray system. PARs (P
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R. Sujatha, Anil Singh Yadav, Dilshad Khan Dilshad Arif, and Astha Gupta. "Microbial Profile and Antibiogram of Ventilator Associated Pneumonia at Tertiary Care Hospital U.P." International Journal of Current Microbiology and Applied Sciences 10, no. 11 (2021): 10–18. http://dx.doi.org/10.20546/ijcmas.2021.1011.002.

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Ventilator associated pneumonia (VAP) is a common and serious healthcare associated infection (HAI). VAP is inflammation of lung parenchyma caused by infectious agents that develops in a patient who is on a ventilator occurring 48-72 hrs or more after tracheal intubation and mechanical ventilation (MV). The risk of VAP is highest early in the course of hospital stay, and is estimated to be 3%/day during the first 5 days of ventilation, 2%/day during days 5-10 of ventilation and 1%/day after this. Aim of this study was find out the Microbial profile and antibiogram of ventilator associated pneu
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Kristoffersen, Marte, and Anne-Marthe Rustad Indregard. "Intensivsykepleieres erfaringer med kollektiv mestring av arbeidsrelatert stress." Inspira 19, no. 2 (2024): 41–55. http://dx.doi.org/10.23865/inspira.v19.6366.

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Bakgrunn: Intensivsykepleieres arbeidshverdag preges av høye faglige og relasjonelle krav. Intensivmiljøet er høyteknologisk og avansert, og arbeidspresset er stort. Tidligere studier viser at intensivsykepleiere har økt risiko for omfattende arbeidsbelastning, høy forekomst av utbrenthet og økt sykefravær, og mange ytrer et ønske om å forlate yrket. Det er behov for mer kunnskap om kollektive mestringsstrategier som bidrar til at intensivsykepleiere håndterer arbeidskravene de står overfor, og som forebygger negative konsekvenser av arbeidsrelatert stress. Hensikt: Å utforske og beskrive inte
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Thèses sur le sujet "Ventilation – Mer"

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Paillet, Jérôme. "Eau modale et ventilation océanique en Atlantique nord-est." Brest, 1996. http://www.theses.fr/1996BRES2004.

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La formation d'eau modale subpolaire en atlantique nord-est, et la ventilation de ce bassin par cette masse d'eau, sont etudies sous differents aspects. Une analyse de donnees hydrologiques recentes nous permet tout d'abord de localiser l'eau modale et d'en caracteriser les proprietes. La circulation generale dans la region est estimee en appliquant la relation geostrophique a ces memes donnees. Puis deux etudes realisees avec des modeles physiques simplifies, un modele de thermocline ventilee et un modele uni-dimensionnel lagrangien, montrent que le parametre cle qui controle la formation et
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Bodell, Erik, and Simon Åhlander. "Energianalys av byggnad med installerat ångsystem för matlagningsprocesser : Kan ånga vara mer effektivt än el för matlagning?" Thesis, Högskolan i Gävle, Energisystem, 2017. http://urn.kb.se/resolve?urn=urn:nbn:se:hig:diva-24232.

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Det finns ett stort behov av att minska energianvändningen i världen. Igenom att minska energibehovet så minskar den negativa miljöpåverkan. I en ständigt växande värld där det byggs i allt snabbare takt så ökar också energibehovet. Igenom att effektivisera befintliga byggnader kan energibehovet stagnera eller till och med minska trots utbyggnaden. Igenom att energieffektivisera så kan mer av den energi som används nyttjas istället för att den ska stå för onödiga förluster. Fortifikationsverket har en restaurangbyggnad de anser använder för mycket energi. Denna byggnad innehåller en restaurang
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Millet, Bruno. "Tracer and model constraints on the ventilation of the deep Pacific Ocean." Electronic Thesis or Diss., université Paris-Saclay, 2024. http://www.theses.fr/2024UPASJ019.

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L'océan Pacifique représente environ 50% du volume global des océans, ce qui en fait un acteur essentiel des cycles biogéochimiques globaux et de leur réponse aux perturbations. En particulier, l'océan Pacifique profond abrite des réservoirs majeurs de carbone et de nutriments, dont la taille et les variations sont largement contrôlées par les transports physiques de traceurs. Dans cette thèse, nous visons à mieux comprendre et contraindre le transport de traceurs dans l'océan Pacifique profond à travers les états climatiques. Pour cela, nous générons de nouvelles et utilisons d'anciennes obse
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Couespel, Damien. "La désoxygénation de l'océan au cours du 21ème siècle : influence des processus de petite et moyenne échelle." Electronic Thesis or Diss., Sorbonne université, 2018. http://www.theses.fr/2018SORUS097.

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La quantité d'oxygène océanique diminue depuis 20ème siècle et, d'après les projections climatiques, cela se poursuivra sur le 21ème siècle avec des effets sur les cycles biogéochimiques, les organismes aquatiques et les écosystèmes. En subsurface, la désoxygénation est contrôlée par : 1) la solubilité déterminant la quantité d’oxygène pouvant être dissous, 2) la respiration utilisant l'oxygène pour reminéraliser la matière organique et 3) les échanges surface/subsurface. Ces mécanismes sont affectés par le changement climatique (CC) : 1) la solubilité diminue quand la température augmente, 2)
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Andrié, Chantal. "Utilisation des traceurs helium-3 et tritium en oceanographie." Paris 6, 1987. http://www.theses.fr/1987PA066241.

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Le traceur transitoire que constitue le tritium est devenu l'un des outils les plus prometteurs dens l'etude de la circulation oceanique generale et de la capacite de l'ocean a absorber le gaz carbonique anthropogene. L'utilisation simultanee du tritium et de son descendant par voie radioactive l'helium-3 ajoute une information supplementaire: la paire de traceurs tritium et helium-3 constitue une horloge dans l'etude des masses d'eau. En plus de son origine "tritiumgenique", l'helium-3 est emis au niveau des dorsales oceaniques et il constitue un traceur de choix dans l'etude de la circulatio
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Nöjd, Mathilda, and Emma Petersson. "Parallelltak med mekanisk ventilation : En jämförelse mellan mekanisk och naturlig ventilation." Thesis, Uppsala universitet, Institutionen för samhällsbyggnad och industriell teknik, 2020. http://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-415713.

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To build and conserve the moisture proof roof constructions is a central problem in the building industry. Outdoor ventilated roof constructions is considered to be a riskful construction that can be burdened with moist damages. It is problematic to build parallel roof with low energy consumption that are resistant to moist. New demands of energy efficient buildings has contributed to an increased amount of insulation in roof constructions. Well insulated roof constructions in combinations with moist and cold winters is the main cause to the current moisture problematic in Sweden. High relativ
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Elvingson, Fredrik. "Vindar med begränsad ventilation - Fukttekniska undersökningar." Thesis, Uppsala universitet, Byggteknik, 2016. http://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-298216.

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Tougher fire requirements and the desire to make simpler designs have enabled construction companies to go from the traditional well-ventilated attic to attic with limited ventilation. Theoretically limited ventilated winds should perform well. The problem you see if there is construction moisture or external moisture sources. Problems may occur when the small ventilation is not able to remove moisture to the extent necessary. Heavier constructions usually have a large amount of construction moisture in the attic floor, which can be transferred to the attic space. Heavier structures with limit
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Akhoudas, Camille. "Un nouveau regard sur la dynamique de l’océan Austral et ses interactions avec la cryosphère révélé par une approche isotopique." Electronic Thesis or Diss., Sorbonne université, 2020. http://www.theses.fr/2020SORUS464.

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L’océan Austral est un acteur central de la circulation océanique mondiale et du système climatique terrestre. Malgré l’essor des observations in situ dans cette région reculée du globe depuis les années 1990 (avec notamment le début de « l’ère satellitaire » et des grands programmes internationaux d’observations tel que WOCE, CLIVAR, GO-SHIP, ou ARGO), ce vaste océan reste encore aujourd’hui largement méconnu. Il est pourtant nécessaire de parvenir à mieux observer et comprendre les mécanismes de sa dynamique océanique ainsi que sa variabilité afin de prédire au mieux l’évolution future du sy
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Jonsson, Reine. "Energieffektivisering i flerbostadshus : Undersökning av lönsamheten med energieffektivare ventilation." Thesis, Mälardalen University, School of Sustainable Development of Society and Technology, 2009. http://urn.kb.se/resolve?urn=urn:nbn:se:mdh:diva-7441.

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<p>This thesis is based on a case study for the real estate manager Mimer in Västerås. Mimer provides a great deal of this city’s rental apartments. Many of their buildings have ventilation systems with a type of heat-recovery called “heatpipe”. This case study focuses on two buildings which have certain problems with these heatpipes. The recovery rates of the existing systems are low, and one building suffers from a warm indoor climate in the summertime. Problems with the indoor climate seem to stem from a faulty installation of the heatpipe. This building does also have considerably higher e
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Blomqvist, Sofia, and Dennis Sundby. "Energianalys av fastighet Brynäs 12:1 : Energikartläggning med effektiviseringsåtgärder inriktning mot ventilation." Thesis, Högskolan i Gävle, Avdelningen för bygg- energi- och miljöteknik, 2014. http://urn.kb.se/resolve?urn=urn:nbn:se:hig:diva-17140.

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Energianvändningen i Sverige och världen förväntas öka och bostads- och servicesektorn står för 40 % av världens totala energibehov. Det är viktigt att energieffektivisera redan befintliga byggnader och optimera dess system då en lägre energianvändning gynnar både miljön och ekonomin. En byggnads ventilationssystem står för en stor del av en fastighets energianvändning och det finns ofta stor potential för systemet att optimeras och effektiviseras. En fastighetsägare vill inte ha fastigheter som står outhyrda. Outhyrda lokaler betyder minskade intäkter i hyror och i vissa
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Livres sur le sujet "Ventilation – Mer"

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Aubin, Paul F. AutoCAD MEP 2011. Autodesk Press, 2011.

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Kreit, John W., and John A. Kellum. Mechanical Ventilation. Oxford University Press, 2017. http://dx.doi.org/10.1093/med/9780190670085.001.0001.

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Mechanical Ventilation—Physiology and Practice provides a comprehensive review of the physiological principles underlying mechanical ventilation, as well as practical approaches to the management of patients with respiratory failure. The book explains instrumentation and terminology, ventilator modes and breath types, ventilator alarms, how to write ventilator orders, and how to diagnose and correct patient–ventilator asynchrony. It also discusses the physiological assessment of the mechanically ventilated patient and the diagnosis and management of dynamic hyperinflation, and describes how to
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Lei, Yuan. Introduction. Oxford University Press, 2017. http://dx.doi.org/10.1093/med/9780198784975.003.0001.

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The ‘Introduction’ chapter presents the concept of the entire ventilator system, whose understanding is crucial for the clinician performing mechanical ventilation. Mechanical ventilation is a risky, expensive, and error-prone therapy, the author asserts, which is why it is so important to understand not just the clinical application of ventilation, but also the equipment used in ventilation therapy. Furthermore, the ventilator must be viewed within the context of the larger ventilation system. This chapter defines the book’s audiences and discusses its value to them.
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Oliver, Charles M., and S. Ramani Moonesinghe. Setting rate, volume, and time in ventilatory support. Oxford University Press, 2016. http://dx.doi.org/10.1093/med/9780199600830.003.0093.

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Ventilator rate, volume, and time parameters are interrelated directly, mechanically, and physiologically, and interactions between intrinsic pulmonary physio-mechanics, pathology and the effects of mechanical ventilation complex. The physiological consequences of mechanical ventilation and risks of ventilator-induced trauma may be exacerbated by lung pathology. Programming of ventilator parameters should be considered within the context of an individualized ventilatory strategy to achieve adequate gas exchange, while minimizing attendant risks of mechanical ventilation. Recommended strategies
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Fanelli, Vito, and V. Marco Ranieri. Failure to ventilate in critical illness. Oxford University Press, 2016. http://dx.doi.org/10.1093/med/9780199600830.003.0100.

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Mechanical ventilation is an efficacious therapy to respiratory failure because it improves gas exchange and rests respiratory muscles. During controlled mechanical ventilation, a patient’s inspiratory muscles are resting and the ventilator delivers a preset tidal volume through the generation of inspiratory flow, overcoming resistive and elastic thresholds of the respiratory system. During assisted ventilation, the same goal is reached through an interplay between the patient’s inspiratory muscles and ventilator. Every perturbation of this interaction causes patient ventilator asynchrony and
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Lei, Yuan. Medical Ventilator System Basics: A clinical guide. Oxford University Press, 2017. http://dx.doi.org/10.1093/med/9780198784975.001.0001.

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Medical Ventilator System Basics: A clinical guide—unlike books that focus on clinical applications, or that provide specifics about individual ventilator models, this is a practical guide about the equipment used for positive pressure mechanical ventilation. This book provides the information a clinician needs every day: how to assemble a ventilator system, how to determine appropriate ventilator settings, how to make sense of monitored data, how to respond to alarms, and how to troubleshoot ventilation problems. The book applies to all ventilators based on the intermittent positive pressure
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Waldmann, Carl, Neil Soni, and Andrew Rhodes. Respiratory therapy techniques. Oxford University Press, 2011. http://dx.doi.org/10.1093/med/9780199229581.003.0001.

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Oxygen therapy 2Ventilatory support: indications 6IPPV—description of ventilators 8IPPV—modes of ventilation 10IPPV—adjusting the ventilator 12IPPV—barotrauma 14IPPV—weaning techniques 16High-frequency ventilation 18Positive end-respiratory pressure 22Continuous positive airway pressure ventilation (CPAP) 24Recruitment manoeuvres 26Prone position ventilation 28...
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Kreit, John W. Ventilator Modes and Breath Types. Edited by John W. Kreit. Oxford University Press, 2017. http://dx.doi.org/10.1093/med/9780190670085.003.0005.

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Ventilator Modes and Breath Types describes, compares, and contrasts the different modes and breath types that are available on intensive care unit ventilators. The chapter first covers the various ventilator modes: continuous mandatory ventilation, synchronized intermittent mandatory ventilation, spontaneous ventilation, and bi-level ventilation. Then it turns to a discussion of the various mechanical breath types: volume control, pressure control, adaptive pressure control, pressure support, and finally, adaptive pressure support. It also provides practical advice about how and when to use e
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Masip, Josep, Kenneth Planas, and Arantxa Mas. Non-invasive ventilation. Oxford University Press, 2015. http://dx.doi.org/10.1093/med/9780199687039.003.0025.

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During the last 25 years, the use of non-invasive ventilation has grown substantially. Non-invasive ventilation refers to the delivery of positive pressure to the lungs without endotracheal intubation and plays a significant role in the treatment of patients with acute respiratory failure and in the domiciliary management of some chronic respiratory and sleep disorders. In the intensive and acute care setting, the primary aim of non-invasive ventilation is to avoid intubation, and it is mainly used in patients with chronic obstructive pulmonary disease exacerbations, acute cardiogenic pulmonar
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Masip, Josep, Kenneth Planas, and Arantxa Mas. Non-invasive ventilation. Oxford University Press, 2016. http://dx.doi.org/10.1093/med/9780199687039.003.0025_update_001.

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During the last 25 years, the use of non-invasive ventilation has grown substantially. Non-invasive ventilation refers to the delivery of positive pressure to the lungs without endotracheal intubation and plays a significant role in the treatment of patients with acute respiratory failure and in the domiciliary management of some chronic respiratory and sleep disorders. In the intensive and acute care setting, the primary aim of non-invasive ventilation is to avoid intubation, and it is mainly used in patients with chronic obstructive pulmonary disease exacerbations, acute cardiogenic pulmonar
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Chapitres de livres sur le sujet "Ventilation – Mer"

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Samandouras, George. "The ventilated patient." In The Neurosurgeon's Handbook. Oxford University Press, 2010. http://dx.doi.org/10.1093/med/9780198570677.003.0108.

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Chapter 3.4, The Ventilated Patient, covers clinical respiratory physiology, oxygen therapy, abnormal respiratory patterns, mechanical ventilation, ventilators, ventilator settings, setting up a ventilator, complications of ventilation, and ventilator weaning.
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Mahboobi, Sohail K., and Mahad Sohail. "Complications and Side Effects of Mechanical Ventilation." In Advanced Anesthesia Review, edited by Alaa Abd-Elsayed. Oxford University PressNew York, 2023. http://dx.doi.org/10.1093/med/9780197584521.003.0108.

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Abstract Mechanical ventilation is routinely used not only in critical care units but also on regular floors. Caring for a patient on a ventilator requires knowledge and understanding of the ventilator, its functioning, indications for placing a patient on the ventilator, choice of optimum ventilator mode, and sedation. In spite of the life-saving nature of mechanical ventilation, it is not free of complications and side effects. In fact, prolonged mechanical ventilation affects almost every organ system of the body, including the cardiorespiratory, gastrointestinal, renal, brain, hematologic, and immune systems. Successful outcome depends on prevention of possible complications, and adequate knowledge and planning are required to achieve this goal. This chapter summarizes the complications related to mechanical ventilation systematically.
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Fozard, Jessica, and Krystle Shafer. "Intubated and boarded in the ED: Ventilator 101." In Critical Care Emergencies, edited by Lillian Liang Emlet. Oxford University PressNew York, 2023. http://dx.doi.org/10.1093/med/9780190082581.003.0008.

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Abstract Emergency physicians can be empowered by knowing the basics of how to safely ventilate patients with the mechanical ventilator. Learning how to initiate mechanical ventilation with appropriate settings is an important skill to learn, as inappropriate settings can increase length of stay, lengthen time on the ventilator, and negatively impact mortality. After choosing the mode of ventilator (the authors recommend volume-control mode), the four settings that must be set are respiratory rate, tidal volume, positive end-expiratory pressure, and fraction of inspired oxygen. A lung-protective ventilation strategy should be used for all patients. Additional parameters are titrated based on the patient’s comorbidities and indication for mechanical ventilation.
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Boesing, Christoph, Thomas Luecke, and Joerg Krebs. "Mechanical Ventilation: How to Set Up the Ventilator." In Oxford Textbook of Respiratory Critical Care. Oxford University PressOxford, 2023. http://dx.doi.org/10.1093/med/9780198766438.003.0011.

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Abstract Summary Mechanical ventilation is a key component in the management of critically ill patients. Therefore, the attending physician needs a comprehensive understanding of the indications, aims, and underlying physiology when treating mechanically ventilated patients to avoid potentially detrimental consequences like ventilator-induced lung injury. A structured approach includes an assessment of the respiratory system, the clinical situation of the patient, and choosing the correct ventilatory mode that avoids patient–ventilator asynchrony. This chapter outlines essential features of respiratory mechanics, their effect on different ventilator strategies, and key components of mechanical ventilation.
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Waldmann, Carl, Andrew Rhodes, Neil Soni, and Jonathan Handy. "Respiratory therapy techniques." In Oxford Desk Reference: Critical Care. Oxford University Press, 2019. http://dx.doi.org/10.1093/med/9780198723561.003.0001.

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This chapter discusses respiratory therapy techniques and includes discussion on oxygen therapy, discussion of intermittent positive pressure ventilation and description of ventilators, modes of ventilation, adjusting the ventilator, barotrauma, and weaning techniques. The chapter also discusses high-frequency ventilation, airway pressure release ventilation, as well as positive end-respiratory pressure, continuous positive airway pressure ventilation, recruitment manoeuvres, prone position ventilation, non-invasive positive pressure ventilation, extracorporeal membrane oxygenation, cricothyroidotomy, tracheostomy, aftercare of the patient with a tracheostomy, chest drain insertion, pleural aspiration, flexible bronchoscopy, chest physiotherapy, humidification, and heart–lung interactions.
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Formenti, Paolo, and John J. Marini. "Monitoring Lung-protective Ventilation." In Oxford Textbook of Respiratory Critical Care. Oxford University PressOxford, 2023. http://dx.doi.org/10.1093/med/9780198766438.003.0015.

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Abstract Summary Lung-protective ventilation strategies have been developed to reduce ventilator-associated lung tissue injury and simultaneously improve systemic oxygenation. We now know that mechanical ventilation per se can aggravate lung injury, a process referred to as ‘ventilator-induced lung injury’ (VILI), through several mechanisms, including volutrauma, barotrauma, and biotrauma. Lung-protective ventilation regulates positive end-expiratory pressure (PEEP), maintains a greater number of pulmonary alveoli in an open state, and avoids excessive end-expiratory lung volume and mechanical power while maintaining an adequate tidal volume and minute ventilation. Moreover, in preventing the collapse of open pulmonary alveoli, PEEP not only helps maintain production and function of pulmonary surfactants but also reduces the shear stress. Current research suggests that reduction of ventilator-associated lung injury or VILI is a main avenue for further reducing mortality in this syndrome. In this chapter, we offer a review of the current literature regarding the use of transpulmonary pressure (Ptp), driving pressure, mechanical power, and stress index in reducing the risk of VILI.
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Kritek, Patricia A. "Mechanical Ventilation." In The Brigham Intensive Review of Internal Medicine. Oxford University Press, 2014. http://dx.doi.org/10.1093/med/9780199358274.003.0038.

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Patients receive mechanical ventilation for a variety of reasons. The general practitioner should understand the broad categories for initiation of mechanical ventilation as well as be able to determine when a patient can be liberated from a ventilator. The majority of this chapter focuses on the common modes of ventilation, the difference between pressure- and volume-cycled breath delivery and how these different modes are monitored.
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Gregoretti, Cesare, Andrea Cortegiani, Vincenzo Russotto, and Lara Pisani. "Non-invasive Ventilation in Critical Care." In Oxford Textbook of Respiratory Critical Care. Oxford University PressOxford, 2023. http://dx.doi.org/10.1093/med/9780198766438.003.0008.

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Abstract Summary Acute respiratory failure (ARF) is characterized by impaired gas exchange and increased work of breathing, secondary to an acute lung and/or respiratory pump failure. Ventilatory assistance to respiratory function can be applied either invasively through an endotracheal tube or by means of external interfaces, such as masks, mouthpieces, prongs, and helmets, referred to as non-invasive ventilation (NIV). Acute NIV needs to be provided in an appropriately skilled and equipped environment, with ready access to advanced respiratory therapies, including invasive mechanical ventilation. Effective use of NIV requires understanding of the ventilator system and interfaces. Key ventilator features include the nature of gas delivery (high-pressure or turbine-driven), the variables used for setting gas delivery, and the timing of breaths and the circuits. Ventilators can deliver either non-invasive continuous positive airway pressure (CPAP) or vary the positive pressure, at different levels (nPPV) to facilitate ventilation. A wide variety of interfaces are available, although those commonly used for acute NIV include orofacial masks, total face masks, and helmets. The type of ventilator, the settings on that ventilator, and the interface all need to be individualized to the patient dependent on their underlying pathology, physiological features, and capacity to tolerate NIV, and a careful approach to patient optimization is critical to successful use of NIV.
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Murphy, Patrick B., Andrew Jones, and Luigi Camporota. "Liberation from Mechanical Ventilation." In Oxford Textbook of Respiratory Critical Care. Oxford University PressOxford, 2023. http://dx.doi.org/10.1093/med/9780198766438.003.0064.

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Abstract Summary Prolonged mechanical ventilation accounts for an important number of intensive care unit bed days. Weaning is the process of moving towards liberation from mechanical ventilation following resolution of the acute physiological insult that resulted in intensive care admission. Weaning is not simply the reduction of ventilator pressure support but is the global process of progressing a ventilator-dependent patient to return to spontaneous breathing and subsequent extubation or decannulation from tracheostomy. While readiness testing and simple weaning can be protocol driven, patients who progress from difficult weaning to prolonged mechanical ventilation will often require detailed physiological assessment in order to identify the reason for weaning failure. Complex weaning involves not just attention to the respiratory physiological impairment but a multi-disciplinary approach involving physical rehabilitation and psychological support to tackle the invariably present co-morbidities that will halt weaning. This appears to be most cost-effectively delivered in specialist centres.
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Eberhardt, Christiane S., and Peter C. Rimensberger. "Paediatric acute respiratory distress syndrome." In Challenging Concepts in Paediatric Critical Care. Oxford University Press, 2020. http://dx.doi.org/10.1093/med/9780198794592.003.0006.

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Acute respiratory distress syndrome (ARDS) is an important condition associated with significant morbidity and mortality in both adults and children. Chapter 6 begins by explaining the definition of paediatric ARDS (PARDS), its severity stratification, risk factors for its development, and its pathophysiology. The evidence base for lung-protective ventilation strategies is covered, with recommended goals given permissive hypoxaemia and hypercapnia. Different modes of ventilation for ARDS are examined: non-invasive ventilation, conventional mechanical ventilation, high-frequency oscillatory ventilation, and neutrally-adjusted ventilator assist, and the relative merits of pressure and volume limitation for lung protection in adults and children. Adjuvant therapies for PARDS are explored: fluid restriction; neuromuscular blocking agents; prone positioning; steroids; inhaled nitric oxide; and surfactant therapy. The chapter concludes by addressing the challenges that remain in defining and managing ARDS, and suggests how patients should be followed up following discharge.
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Actes de conférences sur le sujet "Ventilation – Mer"

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Walter, Marian, and Steffen Leonhardt. "Control applications in artificial ventilation." In 2007 Mediterranean Conference on Control & Automation. IEEE, 2007. http://dx.doi.org/10.1109/med.2007.4433762.

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Chynkiamis, Nikolaos, Matthew Armstrong, James Manifield, et al. "Hemodynamic effects of portable non-invasive ventilation in healthy men." In ERS International Congress 2019 abstracts. European Respiratory Society, 2019. http://dx.doi.org/10.1183/13993003.congress-2019.pa757.

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Pomprapa, Anake, Philipp A. Pickerodt, Wolfgang Braun, et al. "Automatic artificial ventilation therapy using the ARDSNet protocol enforcing dynamical constraints." In 2017 25th Mediterranean Conference on Control and Automation (MED). IEEE, 2017. http://dx.doi.org/10.1109/med.2017.7984124.

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Jime´nez, M. J., J. D. Guzma´n, M. R. Heras, J. Arce, J. P. Xama´n, and G. Alvarez. "Thermal Performance of a Natural Ventilation System." In ASME 2010 4th International Conference on Energy Sustainability. ASMEDC, 2010. http://dx.doi.org/10.1115/es2010-90264.

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Natural ventilation in buildings using solar passive systems, such as solar chimneys, has emerged in the last years. Several theoretical and experimental studies in the literature show that their design parameters strongly depend on the ambient conditions, in which they are installed. In order to increase the knowledge of this kind of systems, this work presents the thermal behavior of a stand alone experimental solar chimney during one year. The dimensions of the solar chimney are 5.60 m high, 1.0 m width, and 0.52 m depth. The absorber plate is made of a common reinforced concrete wall of 4.
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Na, Xue, Lin Hongtao, Liu Xinjian, Mao Yawei, and Qiu Lin. "Impact of Switching Time Interval for Dual Intakes on Workers in Main Control Room During Accidents." In 2017 25th International Conference on Nuclear Engineering. American Society of Mechanical Engineers, 2017. http://dx.doi.org/10.1115/icone25-67742.

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The main control room (MCR) ventilation system has been designed to maintain habitability of the control room envelope both under normal condition and accident condition. The system adopting dual air intakes adds one more air intake for accidents at suitable position. During accidents, the air intake with lower contamination will be selected and the other with higher contamination will be isolated, to reduce the amount of radioactive substances entering MCR extremely and enhance the habitability of MCR envelop. This paper is devoted to research on the impact of switching time interval (STI) fo
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Sobotka, Lukas, Roman Pechanek, Martin Skalicky, and Lukas Veg. "Thermal and Ventilation Analysis of PMSG with a Radial External Fan." In 2022 20th International Conference on Mechatronics - Mechatronika (ME). IEEE, 2022. http://dx.doi.org/10.1109/me54704.2022.9983184.

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Yu, Xin, Yuqing Lin, and Yan Zhang. "Performance Analysis of Eductor Used for Main Control Room Ventilating in Nuclear Power Plant." In 2017 25th International Conference on Nuclear Engineering. American Society of Mechanical Engineers, 2017. http://dx.doi.org/10.1115/icone25-66220.

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This paper proposes the experimental research for the performance of the air eductor used in main control room (MCR). The air eductor is used for emergency ventilating in advanced passive pressurized water reactor in accident. The compress air is supplied to the eductor as a power source and the indoor air is suctioned to the eductor. The performance of the eductor is related to the habitability of MCR. The entrainment ratio and the air pressure of discharge side are the main concerned performance. The entrainment ratio is a value that resulted from the compress air flow rate divided by the su
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Jin, Sike, Jiali Jin, and Yanfeng Gong. "Natural ventilation without air breathing in the top openings of highway tunnels." In MATERIALS SCIENCE, ENERGY TECHNOLOGY, AND POWER ENGINEERING I: 1st International Conference on Materials Science, Energy Technology, Power Engineering (MEP 2017). Author(s), 2017. http://dx.doi.org/10.1063/1.4982486.

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Stefanov, Lachezar, Svilen Neykov, and Lubomir Mladenov. "CORRELATION BETWEEN CONTROL TEST TIMES RELATED TO THE ANAEROBIC THRESHOLD DETERMINED BY THE X-METHOD IN ROWERS." In INTERNATIONAL SCIENTIFIC CONGRESS “APPLIED SPORTS SCIENCES”. Scientific Publishing House NSA Press, 2022. http://dx.doi.org/10.37393/icass2022/47.

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ABSTRACT Aim: The aim of the study is to investigate the correlation between the times for overcoming the distance of 2000 m achieved in control tests on the water and the anaerobic threshold determined by the X-method in laboratory conditions. Material and Methods: Includes collection and analysis of the times achieved in overcoming the distance of 2000 m and the anaerobic threshold determined by the X-method, related to the individual ergometric power and heart rate for each participant. Five elite rowers from the National Team of Bulgaria, men, for the period from 2018 to 2021 were examined
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Garza, Gladys, Peiwen Li, and Douglas Loy. "Micro-Fluidic Assisted Passive Direct Methanol Fuel Cells." In ASME 2012 International Mechanical Engineering Congress and Exposition. American Society of Mechanical Engineers, 2012. http://dx.doi.org/10.1115/imece2012-88540.

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A novel design of micro-fluidic structure has been proposed to facilitate passive methanol supply and ventilation of carbon dioxide in direct methanol fuel cells (DMFC). Experimental study was conducted for three in-house fabricated cells which have different membrane-electrode-assemblies (MEA) and cathode-side air-breathing current collectors. Low rate of passive methanol supply and control was accomplished through capillary-force-driven mass transfer in the in-plane of carbon paper wicks. The low methanol supply rate using this passive method only meets the need of fuel of the electrochemica
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Rapports d'organisations sur le sujet "Ventilation – Mer"

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R.J. Garrett. CLASSIFICATION OF THE MGR SUBSURFACE VENTILATION SYSTEM. Office of Scientific and Technical Information (OSTI), 1999. http://dx.doi.org/10.2172/860245.

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S.E. Salzman. CLASSIFICATION OF THE MGR WASTE TREATMENT BUILDING VENTILATION SYSTEM. Office of Scientific and Technical Information (OSTI), 1999. http://dx.doi.org/10.2172/860260.

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J.A. Ziegler. CLASSIFICATION OF THE MGR WASTE HANDLING BUILDING VENTILATION SYSTEM. Office of Scientific and Technical Information (OSTI), 2000. http://dx.doi.org/10.2172/861101.

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Vanthoor, B. H. E., and I. Tsafaras. Vergelijking tomatenteelten met een Ventilation Jet systeem : als onderdeel van het monitoringsproject. Wageningen University & Research, BU Glastuinbouw, 2018. http://dx.doi.org/10.18174/440767.

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D. A. Padula. RADIATION ACCESS ZONE AND VENTILATION CONFINEMENT ZONE CRITERIA FOR THE MGR SURFACE FACILITIES. Office of Scientific and Technical Information (OSTI), 2000. http://dx.doi.org/10.2172/889301.

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Vanthoor, B. H. E., and I. Tsafaras. Ervaringen met het Ventilation Jet systeem bij Dekker Chrysanten : als onderdeel van het monitoringsproject. Wageningen University & Research, BU Glastuinbouw, 2018. http://dx.doi.org/10.18174/440766.

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Ellen, Hilko, Yvo Goselink, Jos Huis in ’t Veld, and Albert Winkel. Pilots naar de vermindering van fijnstofemissie uit pluimveestallen : Octafil met recirculatie van VEKO Ventilatie. Wageningen Livestock Research, 2020. http://dx.doi.org/10.18174/527162.

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J, Ramos, Novillo F, Nava D, et al. In patients with acute COVID-19, should remdesivir be used compared to placebo? Epistemonikos Interactive Evidence Synthesis, 2023. http://dx.doi.org/10.30846/ies.83ffa48119.

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Objective The aim of this living systematic review is to provide a summary of the effects of remdesivir in the of people with acute covid-19. Methods Eligible studies were randomised trials evaluating the effect of remdesivir versus placebo or no treatment. We conducted searches in COVID-19 L·OVE (Living OVerview of Evidence) platform, a system that performs regular searches in databases, trial registries, preprint servers and websites relevant to COVID-19. All the searches covered the period until 06/23/2023. No date or language restrictions were applied. Two reviewers independently evaluated
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J, Ramos, Novillo F, Nava D, et al. In patients with acute COVID-19, should remdesivir be used compared to placebo? Epistemonikos Interactive Evidence Synthesis, 2023. http://dx.doi.org/10.30846/ies.83ffa48119.v1.

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Objective The aim of this living systematic review is to provide a summary of the effects of remdesivir in the of people with acute covid-19. Methods Eligible studies were randomised trials evaluating the effect of remdesivir versus placebo or no treatment. We conducted searches in COVID-19 L·OVE (Living OVerview of Evidence) platform, a system that performs regular searches in databases, trial registries, preprint servers and websites relevant to COVID-19. All the searches covered the period until 06/23/2023. No date or language restrictions were applied. Two reviewers independently evaluated
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Ramos-Rojas, José, Francisco Novillo, Daniel Nava, et al. In patients with acute COVID-19, should remdesivir be used compared to placebo? Epistemonikos Interactive Evidence Synthesis, 2023. http://dx.doi.org/10.30846/ies.sr1000.

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The aim was to assess the efficacy of remdesivir in people with acute covid-19 compared with placebo. Eligible studies were randomised trials evaluating the effect of remdesivir versus placebo. We conducted searches in COVID-19 L·OVE (Living OVerview of Evidence) platform, a system that performs regular searches in databases, trial registries, preprint servers and websites relevant to COVID-19. All the searches covered the period until 06/23/2023. No date or language restrictions were applied. Two reviewers independently evaluated potentially eligible studies according to predefined selection
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