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  • 1980-1984  (3)
  • 1984  (3)
  • benzodiazepine antagonist  (2)
  • End to side anastomosis  (1)
Datenquelle
Materialart
Erscheinungszeitraum
  • 1980-1984  (3)
Jahr
  • 1984  (3)
Schlagwörter
  • 1
    Digitale Medien
    Digitale Medien
    Flow patterns at the site of extracranial to intracranial end to side anastomosis (1984)
    Springer
    Acta neurochirurgica 73 (1984), S. 45-57 
    Details
    ISSN: 0942-0940
    Schlagwort(e): End to side anastomosis ; flow patterns ; rheological study
    Quelle: Springer Online Journal Archives 1860-2000
    Thema: Medizin
    Notizen: Summary Flow property measurements were performed in a plexiglass model of six various types of end-to-side anastomosis (as clinically shown in extracranial to intracranial arterial bypass surgery). Three anastomoses were made without, another three anastomoses with a ringshaped stenosis restricting the lumen to between 25 and 46% of the cross-section as it occurs clinically by formation of thrombi out of the stitching canals. A rectangular type and two 45 degree oblique types—one directed centrally and one directed peripherally—were tested. Pressure head losses at the site of anastomosis were measured under various circumstances of different anastomoses and different flow speeds along the proximal portion of the middle cerebral artery and the superficial temporal artery. Flow resistance values originated by the different types of anastomoses were expressed in terms of additional recipient vessel length. Differences between different types of anastomoses with and without stenosis were very small and under no circumstances exceeded the equivalent of lengthening the recipient vessel by 2 cm. Theoretically, the optimal type of anastomosis is the oblique and centrally directed version; the worst type is the rectangular form. Practically, however, such differences are not relevant. The explanation for such unexpectedly small differences can rheologically be given by considering the dominating role of blood viscosity under the given circumstances, other variables such as short stenosis and angling of flow playing a secondary role.
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1007/BF01401783
    Bibliothek Standort Signatur Band/Heft/Jahr Verfügbarkeit
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  • 2
    Digitale Medien
    Digitale Medien
    Pharmacokinetics of the selective benzodiazepine antagonist Ro 15-1788 in man (1984)
    Springer
    European journal of clinical pharmacology 27 (1984), S. 115-117 
    Details
    ISSN: 1432-1041
    Schlagwort(e): benzodiazepine antagonist ; Ro 15-1788 ; healthy volunteers ; pharmacokinetics
    Quelle: Springer Online Journal Archives 1860-2000
    Thema: Chemie und Pharmazie , Medizin
    Notizen: Summary The pharmacokinetics of the selective benzodiazepine antagonist Ro 15-1788 has been studied in 6 healthy male volunteers following a single intravenous dose of 2.5 mg. The drug was only slightly bound to plasma proteins (40±8%, mean±SD). A negligible amount (〈0.2% of the dose) of unchanged drug was recovered in urine. Hepatic elimination was rapid, as shown by a short t1/2 of 0.9±0.2 h, and high total plasma and blood clearances of 691±216 ml/min and 716±199 ml/min, respectively. The fast decline of plasma levels from about 60 to 2 ng/ml accounts for the short-lasting reversal of benzodiazepine-induced sedation by Ro 15-1788.
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1007/BF00553165
    Bibliothek Standort Signatur Band/Heft/Jahr Verfügbarkeit
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  • 3
    Digitale Medien
    Digitale Medien
    Pharmacokinetics of the selective benzodiazepine antagonist Ro 15-1788 in man (1984)
    Springer
    European journal of clinical pharmacology 27 (1984), S. 115-117 
    Details
    ISSN: 1432-1041
    Schlagwort(e): benzodiazepine antagonist ; Ro 15-1788 ; healthy volunteers ; pharmacokinetics
    Quelle: Springer Online Journal Archives 1860-2000
    Thema: Chemie und Pharmazie , Medizin
    Notizen: Summary The pharmacokinetics of the selective benzodiazepine antagonist Ro 15-1788 has been studied in 6 healthy male volunteers following a single intravenous dose of 2.5 mg. The drug was only slightly bound to plasma proteins (40±8%, mean±SD). A negligible amount (〈0.2% of the dose) of unchanged drug was recovered in urine. Hepatic elimination was rapid, as shown by a short t1/2 of 0.9±0.2 h, and high total plasma and blood clearances of 691±216 ml/min and 716±199 ml/min, respectively. The fast decline of plasma levels from about 60 to 2 ng/ml accounts for the short-lasting reversal of benzodiazepine-induced sedation by Ro 15-1788.
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1007/BF02395217
    Bibliothek Standort Signatur Band/Heft/Jahr Verfügbarkeit
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    Artikel (Nationallizenzen)
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