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  • 1
    Electronic Resource
    Electronic Resource
    Behandlungsergebnisse von Brandverletzungen im Alter und ihre Beeinflussung durch intensivtherapeutische Maßnahmen (1999)
    Springer
    Der Chirurg 70 (1999), S. 915-922 
    Details
    ISSN: 1433-0385
    Keywords: Key words: Burn therapy ; Nursing ; Survival rate ; Intensive care ; Aged patients. ; Schlüsselwörter: Verbrennung ; Prognose ; Patientenalter ; Intensivmedizin ; Pflege.
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Description / Table of Contents: Zusammenfassung. Die vorliegende Untersuchung beschäftigt sich mit den Therapieergebnissen von 51 Patienten, die zwischen 1993 und 1997 mit kurativem Ziel an einer Intensivbehandlungsstation für Brandverletzte mit Beatmungs-, Hämofiltrations- und Dialysemöglichkeit aufgenommen waren. Die Letalität betrug 45 %. Im Vergleich mit einer historischen Kontrollgruppe aus den 80 er Jahren, die auf einer Normalstation behandelt worden waren, zeigte sich, daß eine Erhöhung des Personalstands im Sinne verbesserter Pflege, eine Verbesserung der enteralen Ernährung und des Flüssigkeits- und Wundmonitorings einen stärkeren positiven Einfluß auf die Prognose dieses speziellen Krankenguts hatten als der Einsatz intensivmedizinischer Hochtechnologie, wie künstlicher Beatmung und Hämofiltration. Im Gegensatz zu den Erfahrungen bei jungen Brandverletzten konnte der Einsatz dieser Methoden nur in Einzelfällen als lebensrettend angesehen werden. Die Gruppe der auf der Intensivstation verstorbenen Patienten zeigte eine relativ lange mediane Überlebenszeit von 24 Tagen, wobei das septische Multiorganversagen als dominante Todesursache anzutreffen war.
    Notes: Summary. The present study analyzes the outcome of 51 patients aged more than 65 years, who were admitted between 1993 and 1997 to a specific burns unit with the possibility of intensive care medicine including respirator therapy and hemofiltration. The results were compared to an historical control group treated between 1980 and 1990. The overall survival rate was 54 %. Analyzing the patients' mortality, an increase in the number of nurses, improvement of enteral nutrition and wound monitoring had more influence on the survival rates than respirator therapy, hemofiltration and catecholamines. This is in contrast to our experience with younger individuals. The positive influence of intensive care on survival was restricted only to a small number of cases. The group of patients who died on the intensive care unit showed a relatively long median survival time of 24 days. Septic multiorgan failure was the main cause of death.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/s001040050742
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  • 2
    Electronic Resource
    Electronic Resource
    Characterization of bimodal bigraft ABS (1993)
    Springer
    Colloid & polymer science 271 (1993), S. 133-142 
    Details
    ISSN: 1435-1536
    Keywords: Graft copolymer ; separation ; ultracentrifugation ; fractional demixing with demixing solvents
    Source: Springer Online Journal Archives 1860-2000
    Topics: Chemistry and Pharmacology , Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
    Notes: Abstract In the final product of a bimodal bigraft ABS, consisting of crosslinked polybutadiene particles (diameter 100 nm) with grafted and ungrafted poly (styrene-co-acrylonitrile) (=SAN) with an acrylonitrile (=AN) content of 28 weight %, crosslinked polybutadiene particles (diameter 300 nm) with grafted and ungrafted SAN with an AN content of 12 weight % and an added SAN with an AN content of 28 weight % the following parameters can be determined: degree of grafting of the small polybutadiene particles, degree of grafting of the large polybutadiene particles, acrylonitrile content of the grafted chains of the small polybutadiene particles, acrylonitrile content of the grafted chains of the large polybutadiene particles, grafting efficiency of the large particles, average particle diameter and particle diameter distribution of the small particles, average particle diameter and particle diameter distribution of the big particles, molar mass distribution of the ungrafted chains of the large particles, chemical distribution of the ungraftd chains of the large particles, molar mass distribution of the SAN resin added, chemical distribution of the SAN resin added. Preparative differential ultracentrifugation in acetone/γ-butyrolacrone (volume ratio 0.55∶0.45), FTIR spectrometry and electron microscopy of the floating and sedimentating fraction yield the degree of grafting and AN content of the graft chains of the large particles and the degree of grafting and AN content of the graft chains of the small particles. Preparative differential centrifugation, FTIR spectrometry and electron microscopy of the fractions give nearly equivalent results. Fractional demixing with the demixing solvents ethylene carbonate/tetraline of the acetone-soluble part yields the SAN with 12 weight % AN in the upper-phase and the SAN with 28 weight % AN in the lower phase. Size exclusion chromatography (SEC) and high-performance precipitation liquid chromatography (HPPLC) of the fractions yield the molecular distribution and chemical distribution of the different SAN resins. SEC, coupled with turbidimetric titration of the acetone-soluble fractions withn-hexane as precipirant, indicates SAN resin with lower AN content in addition to the SAN resin with 28 weight % AN.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00651815
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    Paper (German National Licenses)
    Fulltext
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