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Arteriovenöse Fistelnund Gefäßanschlüsse für die Hämodialyse

  • Hans Scholz
Chapter

Zusammenfassung

  • Durch den Shuntfluss in die Vene mit niedrigem Abstromwiderstand erhöht sich der Fluss in der zuführenden Arterie
    • Dadurch erhöhte Scherung der Intima und Freisetzung von Mediatoren, die bei fehlender Mediasklerose zu einer Dilatation der Arterie führen

  • Vergrößerter Durchmesser der zuführenden Arterie bedingt eine Verminderung des Einstromwiderstandes und damit eine weitere Erhöhung des Shuntflusses

  • Die arterialisierte Vene dilatiert allmählich unter dem erhöhten Druck und vermindert somit den Abstromwiderstand und führt zu einer weiteren Erhöhung des Shuntflusses

  • Die Drucksenkung in der Arterie distal der AV-Fistel kann zu einer peripheren Minderdurchblutung führen (Steal-Syndrom )

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Copyright information

© Springer Medizin Verlag Heidelberg 2011

Authors and Affiliations

  • Hans Scholz
    • 1
  1. 1.Klinik für Gefäßchirurgie Königin Elisabeth Herzberge, Evangelisches KrankenhausBerlin

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