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  • 1
    ISSN: 1432-055X
    Keywords: Schlüsselwörter Lebertransplantation ; Aprotinin ; Transfusionsbedarf ; Gerinnungsparameter ; Key words Liver transplantation ; Aprotinin ; Transfusion requirements ; Coagulation parameters
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Description / Table of Contents: Abstract The effect of aprotinin (2000000 IU as a bolus +500000 JU/h until the end of the operation) on transfusion requirements and coagulation parameters in orthotopic liver transplantation (study group: n=9; placebo group: n=9) was investigated in a randomised, double-blind study. Coagulation parameters were monitored intraoperatively using a mobile laboratory. In contrast to the published results, no effect on transfusion requirements could be demonstrated. However, aprotinin showed a positive effect on some coagulation parameters in the reperfusion phase. The mechanism appeared to be inhibition of the contact activation of the intrinsic system with less thrombin generation in the study group.
    Notes: Zusammenfassung In einer randomisierten Doppelblindstudie wurde der Effekt von Aprotinin (2000000 KIE als Bolus+500000 KIE/h bis zum Ende der Operation, Verumgruppe n=9; Plazebogruppe n=9) auf Gerinnungsparameter und Transfusionsbedarf bei orthotoper Lebertransplantation untersucht. Alle Patienten wurden mit Hilfe eines fahrbaren Gerinnungslabors intraoperativ optimal überwacht. Im Gegensatz zu anderen Arbeitsgruppen fand sich unter diesen Bedingungen für den Transfusionsbedarf kein signifikanter Unterschied zwischen Verum- und Plazebogruppe. Dagegen beobachteten wir einen günstigen Effekt des Proteinaseninhibitors auf verschiedene Gerinnungsparameter, besonders in der Reperfusionsphase. Offensichtlich wird die Kontaktaktivierung des intrinsischen Gerinnungssystems, die durch geschädigte Gefäße des transplantierten Organs eingeleitet wird, durch Aprotinin gehemmt.
    Type of Medium: Electronic Resource
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  • 2
    ISSN: 1432-1238
    Keywords: Key words Aerosols ; Epoprostenol ; Toxicity ; Lung
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Abstract Objective: To study the potential side effects and toxicity of inhaling prostacyclin (PGI2) aerosol for 8 h. Design: In a prospective, randomized study 14 healthy lambs received either PGI2 (n=7) or 0.9% NaCl (n=7) as an aerosol for 8 h. Setting: Institute for Surgical Research of the Ludwig-Maximilians- University of Munich. Interventions: All animals were studied under general anesthesia in a prone position. They were first intubated endotracheally and later tracheotomized. PGI2 solution (median dose 28 ng/kg per min) or 0.9% NaCl was administered with a jet nebulizer (delivery rate 4–10 ml/h; mass median diameter of aerosol particles 3.1 μm). Bronchoalveolar lavage was performed before and after the inhalation period to collect epithelial lining fluid of alveoli. Measurements and results: Hemodynamic and respiratory parameters, systemic resorption (plasma levels of 6-keto-prostaglandin-F1α), in vitro bleeding time, collagen-induced platelet aggregation and global biochemical and cellular composition of the epithelial lining fluid were examined in order to assess the side effects and signs of acute pulmonary toxicity induced by inhaled PGI2. No statistically significant differences were found between the PGI2 and the control groups for any of the parameters examined. Conclusion: Inhalation of PGI2 (28 ng/kg per min) over a period of 8 h in healthy lambs does not produce major side effects or acute pulmonary toxicity.
    Type of Medium: Electronic Resource
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  • 3
    ISSN: 1432-1238
    Keywords: Aerosols ; Epoprostenol ; Toxicity ; Lung
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Abstract Objective To study the potential side effects and toxicity of inhaling prostacyclin (PGI2) aerosol for 8 h. Design In a prospective, randomized study 14 healthy lambs received either PGI2 (n=7) or 0.9% NaCl (n=7) as an aerosol for 8 h. Setting Institute for Surgical Research of the Ludwig-Maximilians-University of Munich. Interventions All animals were studied under general anesthesia in a prone position. They were first intubated endotracheally and later tracheotomized. PGI2 solution (median dose 28 ng/kg per min) or 0.9% NaCl was administered with a jet nebulizer (delivery rate 4–10 ml/h; mass median diameter of aerosol particles 3.1 μm). Bronchoalveolar lavage was performed before and after the inhalation period to collect epithelial lining fluid of alveoli. Measurements and results Hemodynamic and respiratory parameters, systemic resorption (plasma levels of 6-keto-prostaglandin-F1α), in vitro bleeding time, collagen-induced platelet aggregation and global biochemical and cellular composition of the epithelial lining fluid were examined in order to assess the sie effects and signs of acute pulmonary toxicity induced by inhaled PGI2. No statistically significant differences were found between the PGI2 and the control groups for any of the parameters examined. Conclusion Inhalation of PGI2 (28 ng/kg per min) over a period of 8 h in healthy lambs does not produce major side effects or acute pulmonary toxicity.
    Type of Medium: Electronic Resource
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