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Due to technical work, the interlibrary loan service wont be available from March 28th until presumably April 3rd.
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  • 1
    Electronic Resource
    Electronic Resource
    Springer
    Intensive care medicine 22 (1996), S. 724-727 
    ISSN: 1432-1238
    Keywords: Key words Intracellular magnesium ; Magnesium ; Magnesium deficiency ; Prognosis in intensive care unit
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Abstract Objectives: To evaluate the prevalence of serum and erythrocyte magnesium (Mg) abnormalities in patients on admission to the intensive care unit (ICU) and to test the hypothesis that low levels of Mg are associated with a higher mortality. Design: Prospective study. Setting: 14-bed ICU in a 1000-bed teaching hospital. Patients: 179 consecutive patients admitted over a 4-month period. Measurements: Total serum Mg (Mgs) and erythrocyte Mg (Mge) were determined on admission by atomic absorption spectrophotometry. Severity of illness was assessed by Acute Physiology and Chronic Health Evaluation (APACHE) II and the number of organ system failures (OSF) during the first 24 h. The patients were followed up until discharge from hospital. Main results: On admission, 79 patients (44%) were hypomagnesemic and 10 (6%) were hypermagnesemic. A low level of Mge was observed in 119 patients (66%). In patients with similar APACHE II scores and OSF numbers, more of those with hyperMgs died during their ICU stay. However, the Mge value on admission did not correlate with patient outcome. Conclusions: We confirm the high prevalence of Mgs abnormalities as well as Mg deficiency on admission to a medical ICU. Low levels of Mgs and Mge are not associated with higher fatality. HyperMgs was associated with patient death.
    Type of Medium: Electronic Resource
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  • 2
    Electronic Resource
    Electronic Resource
    Springer
    Intensive care medicine 22 (1996), S. 724-727 
    ISSN: 1432-1238
    Keywords: Intracellular magnesium ; Magnesium ; Magnesium deficiency ; Prognosis in intensive care unit
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Abstract Objectives To evaluate the prevalence of serum and erythrocyte magnesium (Mg) abnormalities in patients on admission to the intensive care unit (ICU) and to test the hypothesis that low levels of Mg are associated with a higher mortality. Design Prospective study. Setting 14-bed ICU in a 1000-bed teaching hospital. Patients 179 consecutive patients admitted over a 4-month period. Measurements Total serum Mg (Mgs) and erythrocyte Mg (Mge) were determined on admission by atomic absorption spectrophotometry. Severity of illness was assessed by Acute Physiology and Chronic Health Evaluation (APACHE) II and the number of organ system failures (OSF) during the first 24 h. The patients were followed up until discharge from hospital. Main results On admission, 79 patients (44%) were hypomagnesemic and 10 (6%) were hypermagnesemic. A low level of Mge was observed in 119 patients (66%). In patients with similar APACHE II scores and OSF numbers, more of those with hyperMgs died during their ICU stay. However, the Mge value on admission did not correlate with patient outcome. Conclusions We confirm the high prevalence of Mgs abnormalities as well as Mg deficiency on admission to a medical ICU. Low levels of Mgs and Mge are not associated with higher fatality. HyperMgs was associated with patient death.
    Type of Medium: Electronic Resource
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  • 3
    ISSN: 1432-1238
    Keywords: Key words Epidemiology in ICU ; Facial mask mechanical ventilation ; Logistic Regression Model ; Nosocomial pneumonia ; Ventilator-associated pneumonia
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Abstract Objective: To evaluate the impact of noninvasive positive pressure mechanical ventilation (NPPV) on ventilator-associated pneumonia (VAP). Design: Prospective observational study. Setting: Medical intensive care unit (ICU) of a university teaching hospital. Patients: Cohort of 320 consecutive patients staying in the ICU more than 2 days and mechanically ventilated for ≥ 1 day. Measurements and results: VAP was diagnosed when, satisfying classical clinical and radiological criteria, fiberoptic bronchoalveolar lavage and/or protected specimen brush grew ≥ 104 and ≥ 103 CFU/ml, respectively, of at least one microorganism. Patients were classified into four subgroups according to the way in which mechanical ventilation was delivered: NPPV then tracheal intubation (TI) (n = 38), TI then NPPV (n = 23), TI only (n = 199), and NPPV only (n = 60). Occurrence of VAP was estimated by incidence rate and density of incidence. Risk factors for VAP were assessed by logistic regression analysis. Twenty-seven patients had 28 episodes of VAP. The incidence rates for patients with VAP were 18 % in NPPV-TI, 22 % in TI-NPPV, 8 % in TI, and 0 % in NPPV (p 〈 0.0001). The density of incidence of VAP was 0.85 per 100 days of TI and 0.16 per 100 days of NPPV (p = 0.04). Logistic regression showed that length of ICU stay and ventilatory support were associated with VAP. Conclusions: There is a significantly lower incidence of VAP associated with NPPV compared to tracheal intubation. This is mainly explained by differences in patient severity and risk exposure.
    Type of Medium: Electronic Resource
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  • 4
    ISSN: 1432-1238
    Keywords: Key words Acute respiratory failure ; Alveolar recruitment ; Mechanical ventilation ; Prone position ; Respiratory mechanics
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Abstract Objective: To investigate the effects of prone position (PP) on alveolar recruitment and oxygenation in acute respiratory failure.¶Design: Prospective physiologic study.¶Setting: Medical ICU two in a university hospital.¶Patients: Twelve adult patients intubated and mechanically ventilated with medical primary acute lung injury/adult respiratory distress syndrome (ALI/ARDS) in whom PP was indicated.¶Measurements and results: We constructed the static inflation volume-pressure curves (V-P) of the respiratory system in the 12 patients and differentiated between lung and chest wall in ten of them. We determined the difference between end-expiratory lung volume on positive end-expiratory pressure (PEEP) and relaxation volume of the respiratory system on zero PEEP (ΔFRC). The recruited alveolar volume was computed as the ΔFRC times the ratio of static elastance of the respiratory system to the lung. These measurements together with arterial blood gases determination were made in supine position (SP1), after 1 h of PP and after 1 h of supine repositioning (SP2) at the same level of PEEP. The PaO2/FIO2 ratio improved from SP1 to PP (136 ± 17 vs 204 ± 24 mm Hg; p 〈 0.01). An PP-induced alveolar recruitment was found in five patients. The change in oxygenation correlated to the recruited volume. The static elastance of the chest wall decreased from 4.62 ± 0.99 cmH2O/l in SP1 to 6.26 ± 0.54 cmH2O/l in PP (p 〈 0.05) without any correlation to the change in oxygenation.¶Conclusions: Alveolar recruitment may be a mechanism of oxygenation improvement in some patients with acute hypoxemic respiratory failure. No correlation was found between change in oxygenation and chest wall elastic properties.
    Type of Medium: Electronic Resource
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  • 5
    Electronic Resource
    Electronic Resource
    College Park, Md. : American Institute of Physics (AIP)
    The Journal of Chemical Physics 91 (1989), S. 1548-1555 
    ISSN: 1089-7690
    Source: AIP Digital Archive
    Topics: Physics , Chemistry and Pharmacology
    Notes: We have studied the various rates of formation and decay of ZnHg using a frequency doubled dye laser at 307.6 nm as a pump source for the zinc 3 P1 state. More specifically we have measured the rate of decay of the atomic 3 P1 state, the rate of three-body formation of excited ZnHg, the spontaneous emission coefficient of excited ZnHg, the rate of quenching of ZnHg by Hg atoms and the rate of biexcimer quenching. We have also carried out new measurements of the spectrum of excited ZnHg and of the intrinsic stimulated emission cross section.
    Type of Medium: Electronic Resource
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  • 6
    Electronic Resource
    Electronic Resource
    Oxford, UK : Blackwell Publishing Ltd
    FEMS microbiology letters 67 (1990), S. 0 
    ISSN: 1574-6968
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Biology
    Notes: Two novel β-lactamases conferring multiresistance to antibiotics including oxyimino β-lactams have been identified in two nosocomial K. pneumoniae strains isolated in Tunis in 1986 and 1988. Both enzymes were encoded by ca. 150-kilobase plasmids. Donor and transconjugant strains producing these enzymes exhibited highly similar pattern of resistance (CTX phenotype) to β-lactams including penicillins and oxyimino β-lactams e.g. cefotaxime, ceftriaxone, ceftazidime, and aztreonam. High and variable synergy (16 to 1066-fold) was obtained when combined to 0.1 μg/ml of clavulance (β-lactamase inhibitor). The isoelectric points of these two enzymes were 5.4 and 6.4. These β-lactamases differed from TEM types by hydrolysis for cefotaxime or ceftriaxone but were inhibited by clavulanate and cloxacillin. DNA hybridization studies suggested that the genes of these enzymes may be derived from genes encoding TEM-type enzymes.
    Type of Medium: Electronic Resource
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  • 7
    Electronic Resource
    Electronic Resource
    Oxford, UK : Blackwell Publishing Ltd
    FEMS microbiology letters 8 (1980), S. 0 
    ISSN: 1574-6968
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Biology
    Type of Medium: Electronic Resource
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  • 8
    Electronic Resource
    Electronic Resource
    Amsterdam : Elsevier
    Biochemical and Biophysical Research Communications 205 (1994), S. 269-274 
    ISSN: 0006-291X
    Source: Elsevier Journal Backfiles on ScienceDirect 1907 - 2002
    Topics: Biology , Chemistry and Pharmacology , Physics
    Type of Medium: Electronic Resource
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  • 9
    ISSN: 0375-9474
    Keywords: Nuclear reactions
    Source: Elsevier Journal Backfiles on ScienceDirect 1907 - 2002
    Topics: Physics
    Type of Medium: Electronic Resource
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  • 10
    ISSN: 0375-9474
    Keywords: Nuclear reaction
    Source: Elsevier Journal Backfiles on ScienceDirect 1907 - 2002
    Topics: Physics
    Type of Medium: Electronic Resource
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