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  • 1990-1994  (3)
  • 1993  (3)
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  • 1990-1994  (3)
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  • 1
    Electronic Resource
    Electronic Resource
    Springer
    Infection 21 (1993), S. 229-234 
    ISSN: 1439-0973
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Description / Table of Contents: Zusammenfassung Der Einsatz von Antibiotika bei schwerer akuter Pankreatitis (Stadium II und III) ist indiziert, da bakterielle Komplikationen häufigste Todesursache sind. Ceftazidim wurde hinsichtlich seiner Permeation in das Pankreassekret, in gesundes und chronisch entzündetes Pankreasgewebe sowie in nekrotische Areale bei schwerer Pankreatitis des Menschen untersucht. Im Pankreassekret fand sich 60 Minuten nach intravenöser Gabe von 35 mg/kg eine Spitzenkonzentration von 12,9±5,9 mg/l. Das sind 32% des korrespondierenden Serumspiegels. Die Gewebespiegel variierten, in Abhängigkeit vom Enzündungsstadium, zwischen 9 und 79% der jeweiligen Serumkonzentration. Auch in Pankreasnekrosen ließen sich nach fünftägiger Behandlung (3 × 2 g) Ceftazidimspiegel zwischen 1,8 und 6,9 mg/kg nachweisen. Somit sind in allen untersuchten Kompartimenten ausreichend hohe, antibakterielle Wirkspiegel nach Gabe von Ceftazidim in therapeutischer Dosierung nachweisbar, so daß sich aus pharmakokinetischer Sicht Ceftazidim als ein potentiell geeignetes Präparat bei Pankreatitis anbietet.
    Notes: Summary The use of antibiotics in patients with severe acute pancreatitis (stage II and III) is indicated since bacterial complications are the most common cause of death in these patients. In the present study the penetration of ceftazidime into pancreatic juice, into healthy and chronically inflamed pancreatic tissue as well as into necrotic regions in cases of severe acute pancreatitis was investigated. A peak concentration of 12.9±5.9 mg/l was found 60 min after intravenous administration of 35 mg/kg of the drug, which is 32% of the corresponding serum levels. Pancreatic tissue concentrations varied between 9 and 79% of the corresponding serum levels, depending on the stage of inflammation. After five days of antibiotic treatment with doses of 2 g t.i.d., concentrations between 1.8 and 6.9 mg/kg were detected even in pancreatic necroses. This suggests that sufficient antibacterial levels of ceftazidime were present in all pancreatic compartments analyzed following administration of common therapeutic dosages. Therefore, from a pharmacokinetic point of view, ceftazidime could be a potentially effective drug for the treatment of pancreatitis.
    Type of Medium: Electronic Resource
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  • 2
    Electronic Resource
    Electronic Resource
    Springer
    Archives of gynecology and obstetrics 254 (1993), S. 1438-1439 
    ISSN: 1432-0711
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Type of Medium: Electronic Resource
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  • 3
    Electronic Resource
    Electronic Resource
    Springer
    Fresenius' Zeitschrift für analytische Chemie 346 (1993), S. 147-150 
    ISSN: 1618-2650
    Source: Springer Online Journal Archives 1860-2000
    Topics: Chemistry and Pharmacology
    Notes: Summary For the assessment of the correctness of depth profile analyses with non-ideal technical metal surfaces using secondary neutral particle mass spectrometry (SNMS), the roughness of the sample surface was examined for the transition width of the signal. It is shown that with elements with low sputter rates (Al Mn), similar to that of the substrate element (Fe), there is no significant influence of the roughness. However, clear dependencies are observed for tin and zinc, elements with high sputter rates. Whereas tin gave acceptable results when the roughness was significant, cone formation was observed with zinc which caused abnormal sputter behaviour. The use of high-frequency sputter processes eliminates this cone formation and leads to constant signals, even with thick zinc layers. This method is therefore not only suitable for use with non-conductors, as originally planned, but also offers considerable advantages in the analysis of metal coatings.
    Type of Medium: Electronic Resource
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