title: Relationship between preoperative radial artery and postoperative arteriovenous fistula blood flow in hemodialysis patients.
abstract: BACKGROUND
  It is recommended that arteriovenous fistula (AVF) blood flow should be more than 425 ml/min before cannulation. However, the relationship between preoperative radial artery flow (RAF) and postoperative AVF blood flow has still not been examined.
  
  
  METHODS
  Sixty-one patients with end-stage kidney disease (ESKD) were examined. They had an AVF prepared at Juntendo University Hospital from July 2006 through August 2007. Preoperative RAF and postoperative AVF blood flows were measured by ultrasonography.
  
  
  RESULTS
  AVF blood flow gradually increased after the operation. AVF blood flow was significantly correlated with preoperative RAF. When preoperative RAF exceeded 21.4 ml/min, AVF blood flow rose to more than 425 ml/min. The postoperative AVF blood flow in the group with RAF of more than 20 ml/min was significantly higher than that in those with less than 20 ml/min. Preoperative RAF of less than 20 ml/min had a significantly high risk of primary AVF failure within 8 months compared with that of more than 20 ml/min.
  
  
  CONCLUSIONS
  It appears that measurement of RAF by ultrasonography is useful for estimating AVF blood flow postoperatively and can predict the risk of complications in ESKD patients.
authors.affiliation: Division of Nephrology, Department of Internal Medicine, Juntendo University, Tokyo, Japan.
authors.forename: Michiko
authors.initials: M
authors.lastname: Sato
authors.forename: Hiroaki
authors.initials: H
authors.lastname: Io
authors.forename: Mitsuo
authors.initials: M
authors.lastname: Tanimoto
authors.forename: Yoshio
authors.initials: Y
authors.lastname: Shimizu
authors.forename: Mitsumine
authors.initials: M
authors.lastname: Fukui
authors.forename: Chieko
authors.initials: C
authors.lastname: Hamada
authors.forename: Satoshi
authors.initials: S
authors.lastname: Horikoshi
authors.forename: Yasuhiko
authors.initials: Y
authors.lastname: Tomino
mesh_terms: D000368:Aged; D000704:Analysis of Variance; D001166:Arteriovenous Shunt, Surgical / Q000009:adverse effects; D001783:Blood Flow Velocity; D005260:Female; D006785:Hospitals, University; D006801:Humans; D007564:Japan; D007676:Kidney Failure, Chronic / Q000000981:diagnostic imaging / Q000503:physiopathology / Q000628:therapy*; D008297:Male; D008875:Middle Aged; D017534:Radial Artery / Q000000981:diagnostic imaging / Q000503:physiopathology / Q000601:surgery*; D012039:Regional Blood Flow; D006435:Renal Dialysis; D012189:Retrospective Studies; D013997:Time Factors; D016896:Treatment Outcome; D018608:Ultrasonography, Doppler; D015854:Up-Regulation; D014654:Vascular Patency