375 research outputs found

    A Study of Subjective Video Quality at Various Spatial Resolutions

    Get PDF

    Prevalence, associated factors and outcomes of pressure injuries in adult intensive care unit patients: the DecubICUs study

    Get PDF
    Funder: European Society of Intensive Care Medicine; doi: http://dx.doi.org/10.13039/501100013347Funder: Flemish Society for Critical Care NursesAbstract: Purpose: Intensive care unit (ICU) patients are particularly susceptible to developing pressure injuries. Epidemiologic data is however unavailable. We aimed to provide an international picture of the extent of pressure injuries and factors associated with ICU-acquired pressure injuries in adult ICU patients. Methods: International 1-day point-prevalence study; follow-up for outcome assessment until hospital discharge (maximum 12 weeks). Factors associated with ICU-acquired pressure injury and hospital mortality were assessed by generalised linear mixed-effects regression analysis. Results: Data from 13,254 patients in 1117 ICUs (90 countries) revealed 6747 pressure injuries; 3997 (59.2%) were ICU-acquired. Overall prevalence was 26.6% (95% confidence interval [CI] 25.9–27.3). ICU-acquired prevalence was 16.2% (95% CI 15.6–16.8). Sacrum (37%) and heels (19.5%) were most affected. Factors independently associated with ICU-acquired pressure injuries were older age, male sex, being underweight, emergency surgery, higher Simplified Acute Physiology Score II, Braden score 3 days, comorbidities (chronic obstructive pulmonary disease, immunodeficiency), organ support (renal replacement, mechanical ventilation on ICU admission), and being in a low or lower-middle income-economy. Gradually increasing associations with mortality were identified for increasing severity of pressure injury: stage I (odds ratio [OR] 1.5; 95% CI 1.2–1.8), stage II (OR 1.6; 95% CI 1.4–1.9), and stage III or worse (OR 2.8; 95% CI 2.3–3.3). Conclusion: Pressure injuries are common in adult ICU patients. ICU-acquired pressure injuries are associated with mainly intrinsic factors and mortality. Optimal care standards, increased awareness, appropriate resource allocation, and further research into optimal prevention are pivotal to tackle this important patient safety threat

    Multi-target novel neuroprotective compound ITH33/IQM9.21 inhibits calcium entry, calcium signals and exocytosis

    No full text
    Compound ITH33/IQM9.21 (ITH/IQM) belongs to a new family of L-glutamic acid derivatives with antioxidant and neuroprotective properties on in vitro and in vivo models of stroke. Because neuronal damage after brain ischemia is tightly linked to excess Ca2+ entry and neuronal Ca2+ overload, we have investigated whether compound ITH/IQM antagonises the elevations of the cytosolic Ca2+ concentrations ([Ca2+](c)) and the ensuing exocytotic responses triggered by depolarisation of bovine chromaffin cells. in fluo-4-loaded cell populations, ITH/IQM reduced the K+-evoked [Ca2+](c) transients with an IC50 of 5.31 mu M. At 10 mu M, the compound decreased the amplitude and area of the Ca2+ transient elicited by challenging single fura-2-loaded cells with high K+ by 40% and 80%, respectively. This concentration also caused a blockade of K+-induced catecholamine release at the single-cell level (78%) and cell populations (55%). These effects are likely due to blockade of the whole-cell inward Ca2+ currents (IC50 = 6.52 mu M). At 10 mu M, ITH/IQM also inhibited the Ca2+-dependent outward K+ current, leaving untouched the voltage-dependent component of I-K. the inward Na+ current was unaffected. Inhibition of depolarisation-elicited Ca2+ entry, [Ca2+](c) elevation and exocytosis could contribute to the neuroprotective effects of ITH/IQM in vulnerable neurons undergoing depolarisation during brain ischemia. (C) 2011 Elsevier B.V. All rights reserved.Consolider Program Ingenio-2010Ministerio de Ciencia e Innovacion, SpainInstituto de Salud Carlos III, Fundacion CIEN Ministerio de Ciencia e Innovacion, SpainComunidad Autonoma de Madrid, SpainAgencia Lain Entralgo, Madrid, SpainUAM-CEAL-Banco SantanderUniv Autonoma Madrid, Fac Med, Inst Teofilo Hernando, E-28029 Madrid, SpainUniv Autonoma Madrid, Fac Med, Dept Farmacol & Terapeut, E-28029 Madrid, SpainCSIC, Inst Quim Med, E-28006 Madrid, SpainUniversidade Federal de São Paulo, Dept Farmacol, Escola Paulista Med, São Paulo, BrazilUniv Santiago de Compostela, Fac Farm, Dept Farmacol, Santiago de Compostela, SpainUniversidade Federal de São Paulo, Dept Farmacol, Escola Paulista Med, São Paulo, BrazilConsolider Program Ingenio-2010: SAF 2006-03589Ministerio de Ciencia e Innovacion, Spain: SAF 2010-21795Ministerio de Ciencia e Innovacion, Spain: SAF 2006/01249Ministerio de Ciencia e Innovacion, Spain: SAF 2009-13015-C02-01Instituto de Salud Carlos III, Fundacion CIEN Ministerio de Ciencia e Innovacion, Spain: PIO 16/09Comunidad Autonoma de Madrid, Spain: SAL2006/02751Agencia Lain Entralgo, Madrid, Spain: NDE 07/09Web of Scienc

    Publisher Correction:Spatial heterogeneity of the T cell receptor repertoire reflects the mutational landscape in lung cancer

    No full text
    corecore