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- Li, G, et al.
(författare)
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Towards understanding global patterns of antimicrobial use and resistance in neonatal sepsis: insights from the NeoAMR network
- 2020
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Ingår i: Archives of disease in childhood. - : BMJ. - 1468-2044 .- 0003-9888. ; 105:1, s. 26-31
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Tidskriftsartikel (refereegranskat)abstract
- To gain an understanding of the variation in available resources and clinical practices between neonatal units (NNUs) in the low-income and middle-income country (LMIC) setting to inform the design of an observational study on the burden of unit-level antimicrobial resistance (AMR).DesignA web-based survey using a REDCap database was circulated to NNUs participating in the Neonatal AMR research network. The survey included questions about NNU funding structure, size, admission rates, access to supportive therapies, empirical antimicrobial guidelines and period prevalence of neonatal blood culture isolates and their resistance patterns.Setting39 NNUs from 12 countries.PatientsAny neonate admitted to one of the participating NNUs.InterventionsThis was an observational cohort study.ResultsThe number of live births per unit ranged from 513 to 27 700 over the 12-month study period, with the number of neonatal cots ranging from 12 to 110. The proportion of preterm admissions <32 weeks ranged from 0% to 19%, and the majority of units (26/39, 66%) use Essential Medicines List ‘Access’ antimicrobials as their first-line treatment in neonatal sepsis. Cephalosporin resistance rates in Gram-negative isolates ranged from 26% to 84%, and carbapenem resistance rates ranged from 0% to 81%. Glycopeptide resistance rates among Gram-positive isolates ranged from 0% to 45%.ConclusionAMR is already a significant issue in NNUs worldwide. The apparent burden of AMR in a given NNU in the LMIC setting can be influenced by a range of factors which will vary substantially between NNUs. These variations must be considered when designing interventions to improve neonatal mortality globally.
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- Bolognesi, P., et al.
(författare)
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A study of the dynamical energy flow in uracil
- 2015
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Ingår i: Journal of Physics, Conference Series. - : IOP Publishing. - 1742-6588 .- 1742-6596. ; 635
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Tidskriftsartikel (refereegranskat)abstract
- The time resolved photoionization of C 1s in uracil following excitation of the neutral molecule by 260 nm pulses has been studied at LCLS.
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- Chew, Michelle, et al.
(författare)
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Extravascular lung water index: Diagnostic accuracy and relation to lung injury and mortality in patients with shock
- 2011
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Ingår i: Intensive Care Medicine. - : Springer Science and Business Media LLC. - 0342-4642 .- 1432-1238. ; 37:1 Suppl, s. 98-98
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Konferensbidrag (refereegranskat)abstract
- INTRODUCTION. The diagnosis of acute lung injury may be more robust if more accurate physiological markers can be identified. Extravascular lung water index (EVLWI) may be useful and has been shown to correlate with respiratory function and mortality in patients with sepsis and ARDS. Whether this applies to a wider population, and which index performs best, are unclear. OBJECTIVES. We hypothesized that EVLWI correlates with respiratory function and mortality in patients with documented systemic inflammation and shock. We investigated EVLW indexed to actual and predicted body weight, and pulmonary blood volume. We investigated the diagnostic accuracy of EVLWI for lung injury. METHODS. In 51 patients with shock and SIRS, EVLWI was measured within 6 h of ICU admission and indexed to actual weight (EVLWI/ABW), predicted body weight (EVLWI/ PBW) and pulmonary blood volume (EVLWI/PBV). Relationships to lung injury and ICUmortality were investigated. Positive and negative likelihood ratios, pre- and post-test odds and ROC curves were calculated. RESULTS. EVLWI was higher among patients with lung injury and was significantly correlated with respiratory parameters. EVLWI/ABW was higher among non-survivors and gave the best positive likelihood ratios for diagnosing ALI/ARDS. In contrast, EVLWI/PBV gave better diagnostic value for severe lung injury according to Murray's LIS criteria. The post-test odds for ALI and ARDS increased threefold when using EVLWI/ABW as a bedside test. The post-test odds of severe lung injury increased eightfold using EVLWI/PBV. EVLWI/ABW and EVLWI/PBV generated the best ROC curves for mortality prediction with a sensitivity of 68% and specificity of 63-72%. CONCLUSIONS. EVLWI was associated with degree of lung injury, regardless of the index used, supporting its usefulness as a bedside indicator for disease severity. EVLWI/PBV and EVLW/ABW gave the best diagnostic accuracies for the diagnosis of lung injury, and generated the bestROCcurves for mortality prediction.EVLWI/ABWwas significantly increased in non-survivors. Further studies are needed to confirm the additional value of EVLWI for the early identification of lung injury.
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