Search results for "Critical"

showing 10 items of 3024 documents

Respiratory support in patients with severe COVID-19 in the International Severe Acute Respiratory and Emerging Infection (ISARIC) COVID-19 study: a …

2022

Invasive mechanical ventilation; COVID-19; Critical care Ventilación mecánica invasiva; COVID-19; Cuidado crítico Ventilació mecànica invasiva; COVID-19; Atenció crítica Background Up to 30% of hospitalised patients with COVID-19 require advanced respiratory support, including high-flow nasal cannulas (HFNC), non-invasive mechanical ventilation (NIV), or invasive mechanical ventilation (IMV). We aimed to describe the clinical characteristics, outcomes and risk factors for failing non-invasive respiratory support in patients treated with severe COVID-19 during the first two years of the pandemic in high-income countries (HICs) and low middle-income countries (LMICs). Methods This is a multin…

:enfermedades respiratorias::trastornos respiratorios::insuficiencia respiratoria [ENFERMEDADES]COVID-19; Critical care; High flow nasal cannula; Invasive mechanical ventilationRespiració artificialCritical Care and Intensive Care Medicine[SDV.MHEP.PSR]Life Sciences [q-bio]/Human health and pathology/Pulmonology and respiratory tractCOVID-19 (Malaltia) - Tractament[SDV.MHEP.MI]Life Sciences [q-bio]/Human health and pathology/Infectious diseasesCOVID-19; Critical care; High flow nasal cannula; Invasive mechanical ventilation; Humans; Prospective Studies; SARS-CoV-2; Tachypnea; COVID-19; Respiratory Insufficiency:virosis::infecciones por virus ARN::infecciones por Nidovirales::infecciones por Coronaviridae::infecciones por Coronavirus [ENFERMEDADES]HumansProspective StudiesInvasive mechanical ventilation:Otros calificadores::/terapia [Otros calificadores]TachypneaInsuficiència respiratòria - TractamentSARS-CoV-2:Therapeutics::Therapeutics::Respiratory Therapy::Respiration Artificial::Noninvasive Ventilation [ANALYTICAL DIAGNOSTIC AND THERAPEUTIC TECHNIQUES AND EQUIPMENT]COVID-19:Virus Diseases::RNA Virus Infections::Nidovirales Infections::Coronaviridae Infections::Coronavirus Infections [DISEASES]:Other subheadings::/therapy [Other subheadings]:terapéutica::terapéutica::terapia respiratoria::respiración artificial::ventilación no invasiva [TÉCNICAS Y EQUIPOS ANALÍTICOS DIAGNÓSTICOS Y TERAPÉUTICOS]:Respiratory Tract Diseases::Respiration Disorders::Respiratory Insufficiency [DISEASES]High flow nasal cannulaProspective StudieCritical careRespiratory InsufficiencyHumanCritical Care
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Der gegenwärtige Stand der Blutfiltration - Grundlagen und klinische Bedeutung von Leukozytendepletions- und Mikroaggregatfiltern bei der Bluttransfu…

1993

In this review the role of the latest generation of leukodepletion blood filters and the adverse reaction of leukocytes i.e. alloimmunisation, immunosuppression, nonhaemolytic febrile transfusion reaction, platelet refractoriness, transmission of infectious agents are described and discussed. Leukocyte-poor blood component is indicated for patients with a history of nonhaemolytic febrile transfusion reaction, in avoiding alloimmunisation in patients waiting for transplantation or platelet refractoriness and in preventing CMV-infection. In the review the role of microaggregate filters in transfusion complications, namely, nonhaemolytic febrile transfusion reaction, thrombocytopenia, adult re…

ARDSBlood transfusionRespiratory distressbusiness.industrymedicine.medical_treatmentImmunosuppressionGeneral MedicineCritical Care and Intensive Care Medicinemedicine.diseaseBlood cellTransplantationAnesthesiology and Pain Medicinemedicine.anatomical_structureBlood productIntensive careImmunologyEmergency MedicinemedicinebusinessAINS - Anästhesiologie · Intensivmedizin · Notfallmedizin · Schmerztherapie
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Do ventilatory parameters influence outcome in patients with severe acute respiratory infection? Secondary analysis of an international, multicentre1…

2021

Purpose: To investigate the possible association between ventilatory settings on the first day of invasive mechanical ventilation (IMV) and mortality in patients admitted to the intensive care unit (ICU) with severe acute respiratory infection (SARI). Materials and methods: In this pre-planned sub-study of a prospective, multicentre observational study, 441 patients with SARI who received controlled IMV during the ICU stay were included in the analysis. Results: ICU and hospital mortality rates were 23.1 and 28.1%, respectively. In multivariable analysis, tidal volume and respiratory rate on the first day of IMV were not associated with an increased risk of death; however, higher driving pr…

ARDSSoins intensifs réanimationmedicine.medical_treatmentAirway pressuresPEEP positive end-expiratory pressureCritical Care and Intensive Care Medicinelaw.inventionHypoxemiaCohort StudiesPositive-Pressure RespirationMechanical ventilationSARI severe acute respiratory infectionlawHospital MortalityProspective StudiesIQR interquartile rangesProspective cohort studyRCT randomized controlled trialTidal volumeSOFA Sequential Organ Failure AssessmentSAPS Simplified Acute Physiology ScoreIntensive care unitVCV volume-controlled ventilationHIV human immunodeficiency virusIntensive Care UnitsIC GLOSSARI Intensive Care Global Study on Severe Acute Respiratory Infectionmedicine.symptomCohort studyLOS length of staymedicine.medical_specialtyVt tidal volumeCOPD Chronic obstructive pulmonary diseaseNYHA New York Heart Association.PCV pressure-controlled ventilationArticleInternal medicineICU Intensive Care UnitSIMV Synchronized intermittent mandatory ventilationmedicineTidal VolumeHumansDP driving pressurePEEPARDS acute respiratory distress syndromeMechanical ventilationbusiness.industryOdds ratioPneumoniaPlateau pressuremedicine.diseaseRespiration ArtificialVILI ventilator induced lung injuryCI confidence intervalOR odds ratioIMV invasive mechanical ventilationCPAP continuous positive airway pressureARDSbusinessSD standard deviationECMO extracorporeal membrane oxygenationPBW predicted body weightPplat plateau pressure
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Random allogeneic blood transfusion in pigs: characterisation of a novel experimental model.

2019

BackgroundOrgan cross-talk describes interactions between a primary affected organ and a secondarily injured remote organ, particularly in lung-brain interactions. A common theory is the systemic distribution of inflammatory mediators that are released by the affected organ and transferred through the bloodstream. The present study characterises the baseline immunogenic effects of a novel experimental model of random allogeneic blood transfusion in pigs designed to analyse the role of the bloodstream in organ cross-talk.MethodsAfter approval of the State and Institutional Animal Care Committee, 20 anesthetized pig were randomized in a donor and an acceptor (eachn = 8): the acceptor animals …

ARDSmedicine.medical_specialtyBlood transfusionEmergency and Critical Caremedicine.medical_treatmentSurgery and Surgical Specialtieslcsh:MedicineInflammation030204 cardiovascular system & hematologyGeneral Biochemistry Genetics and Molecular BiologyPulmonary function testing03 medical and health sciences0302 clinical medicinemedicineExperimental modelAdverse effectRespiratory MedicineCrosstalkLungAnesthesiology and Pain ManagementWhole bloodInflammationLungbusiness.industryTransfusionGeneral Neurosciencelcsh:RBrain030208 emergency & critical care medicineHematologyGeneral Medicinemedicine.diseaseBloodPig modellmedicine.anatomical_structureAnesthesiaARDSHistopathologymedicine.symptomGeneral Agricultural and Biological SciencesbusinessPeerJ
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Mechanical ventilation parameters in critically ill COVID-19 patients: a scoping review

2021

Abstract Background The mortality of critically ill patients with COVID-19 is high, particularly among those receiving mechanical ventilation (MV). Despite the high number of patients treated worldwide, data on respiratory mechanics are currently scarce and the optimal setting of MV remains to be defined. This scoping review aims to provide an overview of available data about respiratory mechanics, gas exchange and MV settings in patients admitted to intensive care units (ICUs) for COVID-19-associated acute respiratory failure, and to identify knowledge gaps. Main text PubMed, EMBASE, and MEDLINE databases were searched from inception to October 30, 2020 for studies providing at least one v…

ARDSmedicine.medical_specialtyCritical Illnessmedicine.medical_treatmentReviewRespiratory physiologyCritical Care and Intensive Care MedicineHypoxemia03 medical and health sciencesMechanical ventilation0302 clinical medicineIntensive careFraction of inspired oxygenmedicineHumansIntensive care unitMechanical ventilation.Positive end-expiratory pressureMechanical ventilationRespiratory Distress SyndromeIntensive care unitsCoronavirus disease 2019Acute respiratory distress syndromebusiness.industrylcsh:Medical emergencies. Critical care. Intensive care. First aidCOVID-19030208 emergency & critical care medicinelcsh:RC86-88.9medicine.diseaseRespiration Artificial030228 respiratory systemEmergency medicineRespiratory Mechanicsmedicine.symptombusinessCohort studyCritical Care
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Experimental lung injury induces cerebral cytokine mRNA production in pigs

2020

Background Acute respiratory distress syndrome (ARDS) is an important disease with a high incidence among patients admitted to intensive care units. Over the last decades, the survival of critically ill patients has improved; however, cognitive deficits are among the long-term sequelae. We hypothesize that acute lung injury leads to upregulation of cerebral cytokine synthesis. Methods After approval of the institutional and animal care committee, 20 male pigs were randomized to one of three groups: (1) Lung injury by oleic acid injection (OAI), (2) ventilation only (CTR) or (3) untreated. We compared neuronal numbers, proportion of neurons with markers for apoptosis, activation state of Ib…

ARDSmedicine.medical_specialtyEmergency and Critical Caremedicine.medical_treatmentLung injuryGeneral Biochemistry Genetics and Molecular Biology03 medical and health sciences0302 clinical medicineInternal medicineIntensive caremedicineCognitive declineCognitive DisordersRespiratory MedicineMicrogliaAcute respiratory distress syndromebusiness.industryGeneral Neuroscience030208 emergency & critical care medicineGeneral Medicinemedicine.diseaseLung injuryCritical careEndocrinologyCytokinemedicine.anatomical_structureCognitive impairmentNeurologyApoptosisCerebral inflammationCytokinesTumor necrosis factor alphaPigsGeneral Agricultural and Biological Sciencesbusiness030217 neurology & neurosurgeryPeerJ
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Hyperoxemia and excess oxygen use in early acute respiratory distress syndrome: Insights from the LUNG SAFE study

2020

Abstract Background Concerns exist regarding the prevalence and impact of unnecessary oxygen use in patients with acute respiratory distress syndrome (ARDS). We examined this issue in patients with ARDS enrolled in the Large observational study to UNderstand the Global impact of Severe Acute respiratory FailurE (LUNG SAFE) study. Methods In this secondary analysis of the LUNG SAFE study, we wished to determine the prevalence and the outcomes associated with hyperoxemia on day 1, sustained hyperoxemia, and excessive oxygen use in patients with early ARDS. Patients who fulfilled criteria of ARDS on day 1 and day 2 of acute hypoxemic respiratory failure were categorized based on the presence o…

ARDSmedicine.medical_treatment030204 cardiovascular system & hematologyCritical Care and Intensive Care MedicineHyperoxemiaHypoxemialaw.inventionHypoxemia0302 clinical medicinelawFraction of inspired oxygenOxygen therapyPrevalenceMedicineHypoxiaAcute respiratory distress syndrome; Hyperoxemia; Hyperoxia; Hypoxemia; Hypoxia; Invasive mechanical ventilation; Mortality; Oxygen therapy;Respiratory Distress SyndromeHyperbaric OxygenationAcute respiratory distress syndromeRespirationlcsh:Medical emergencies. Critical care. Intensive care. First aidHyperoxemiaIntensive care unitIntensive Care UnitsAnesthesiaArtificialmedicine.symptomHumanArtificial ventilationAcute respiratory distress syndrome; Hyperoxemia; Hyperoxia; Hypoxemia; Hypoxia; Invasive mechanical ventilation; Mortality; Oxygen therapyIntensive Care UnitHyperoxiaNO03 medical and health sciencesIntensive careSettore MED/41 - ANESTESIOLOGIAHumansInvasive mechanical ventilationMortalitybusiness.industryResearchRespiratory Distress Syndrome Adultlcsh:RC86-88.9medicine.diseaseOxygen therapyRespiration Artificialrespiratory tract diseasesOxygenlnfectious Diseases and Global Health Radboud Institute for Health Sciences [Radboudumc 4]030228 respiratory systembusiness
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Hypotensive Hemostasis in Patients Presenting with Ruptured Aortic Aneurysm

2017

Hypotensive hemostasis in aortic rupture has been showed to be feasible and advantageous, especially in trauma patients. To date, there are no randomized studies on hypotensive hemostasis in patients with ruptured abdominal aortic aneurysm (rAAA), but observational studies indicate similar advantages when hypotensive hemostasis is used for endovascular aneurysm repair (EVAR) as in trauma patients. Actually, in EVAR for rAAA, a target systolic blood pressure of 90 mmHg or even lower is considered safe in conscious patients. Fluids should be administrated judiciously with the sole aim of maintaining adequate cardiac output and tissue oxygenation, whereas vasoactive pressors or dilatators may …

Abdominal compartment syndromebusiness.industrymedicine.medical_treatmentHypotensive; Hemostasis; Ruptured; Aortic AneurysmHemodynamics030208 emergency & critical care medicineRuptured Aortic Aneurysm030204 cardiovascular system & hematologyHypotensiveHemostasimedicine.diseaseEndovascular aneurysm repairSettore MED/22 - Chirurgia VascolareAbdominal aortic aneurysmRupturedAortic Aneurysm03 medical and health sciences0302 clinical medicineBlood pressureAnesthesiaHemostasiscardiovascular systemmedicinebusinessAortic rupture
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Modelling temperature-dependent dynamics of single and mixed infections in a plant virus

2022

Multiple viral infection is an important issue in health and agriculture with strong impacts on society and the economy. Several investigations have dealt with the population dynamics of viruses with different dynamic properties, focusing on strain competition during multiple infections and the effects on viruses’ hosts. Recent interest has been on how multiple infections respond to abiotic factors such as temperature (T). This is especially important in the case of plant pathogens, whose dynamics could be affected significantly by global warming. However, few mathematical models incorporate the effect of T on parasite fitness, especially in mixed infections. Here, we investigate simple mat…

Abiotic componenteducation.field_of_studybiologyMathematical modelCo-infection dynamicsApplied Mathematicsmedia_common.quotation_subjectPopulationTranscritical bifurcationsRNA virusAbiotic stressbiology.organism_classificationCompetition (biology)BifurcationsCompetition modelTranscritical bifurcationThermal reaction normsEvolutionary biologyNonlinear dynamicsModeling and SimulationPlant virusDynamical systemseducationmedia_commonApplied Mathematical Modelling
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Utilization of impedance spectroscopy to investigate the self-assembly behavior of amphiphiles soluble in supercritical carbon dioxide: Preliminary r…

2007

Abstract A mixture of CO 2 , water, methyl orange (MO) and Dynol 604 surfactant was analyzed at 309 K and 20 MPa simultaneously by impedance and UV–vis spectroscopy. A plot of the static dielectric constant as a function of the surfactant concentration was obtained using a suitable equivalent circuit to elaborate impedance data. Experimental points can be fitted by two different straight lines whose intersection occurs at about 0.13% (w/w) concentration of Dynol. When the surfactant concentration crossed the aforementioned value, a peak was detectable in the UV–vis spectrum at a wavelength range corresponding to the absorption of MO; absorbance of the peak increased with the surfactant conc…

AbsorbanceSupercritical carbon dioxidePulmonary surfactantChemistryGeneral Chemical EngineeringCritical micelle concentrationAnalytical chemistryMicroemulsionPhysical and Theoretical ChemistryCondensed Matter PhysicsSpectroscopySupercritical fluidDielectric spectroscopyThe Journal of Supercritical Fluids
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