Program Book - Keck School of Medicine of USC - University of ...

1 vs 2-Stage BBAVFOne-stage(n=60)Two-stage(n=30)p-valuePrimary failure 22.9% 9.1% 0.17Primary patencyOne yearTwo yearSecondary patencyOne yearTwo yearPrimary functional patencyOne yearTwo yearSecondary functional patencyOne yearTwo year78%34%82%41%61%34%80%41%84%84%89%89%88%88%94%94%0.0460.010.0470.0151 vs 2-Stage BBAVFPatency for one-stage BBAVF proceduresmay be decreased due to– Extensive mobilization– Tunneling of a non-matured, thin-walled basilicvein– Unseen vessel injury– Kinking of a thin-walled veinBrachial Vein-Brachial Artery AVFDeeper than basilic veinMore thin walledMoretributaries37