lunes, 11 de febrero de 2013

¿Que es una fistula arteriovenosa?

An arteriovenous fistula is surgically created to facilitate haemodialysis by anastomosing a vein to an artery. The creation of an arteriovenous fistula produces an arterialised venous channel, which has the combined advantage of the venous large diameter and the arterial high blood flow. The ideal arteriovenous fistula has the following features:
  • Blood flow of at least 300 mL/min
  • Large diameter, which facilitates venepuncture
  • Sufficient length to allow two dialysis needles to be inserted—one needle is arterial and the other venous
  • Created by a simple and quick operation, preferably under local anaesthetic
  • Good long term patency rate

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