Objective To compare the permeability and incidence rate of complication of arteriovenous internal fistula made by autogenous, homologous, and artificial Teflon blood vessels.

• 目的对自体血管动-静脉内瘘、同种异体血管和聚四氟乙烯人造血管制作动-静脉内瘘的通畅率和并发症发生率进行比较。