Brachial vein transposition arteriovenous fistulas for hemodialysis access.
BACKGROUND
An arteriovenous fistula (AVF) is the preferred vascular access for hemodialysis, offering lower morbidity, mortality, and cost compared with grafts or catheters. Patients with a difficult access extremity have often lost all superficial veins, and even basilic veins may be obliterated. We have used brachial vein transposition AVFs (BVT-AVFs) in these challenging patients and review our experience in this report.


METHODS
The study reviewed consecutive patients in whom BVT-AVFs were created from September 2006 to March 2009. Most BVT-AVFs were created in staged procedures, with the second-stage transposition operations completed 4 to 6 weeks after the first-stage AVF operation. A single-stage BVT-AVF was created when the brachial vein diameter was > or =6 mm.


RESULTS
We identified 58 BVT-AVF procedures, comprising 41 women (71.0%), 28 diabetic patients (48.3%), and 29 (50.0%) had previous access surgery. The operation was completed in two stages in 45 operations (77.6%) and was a primary transposition in 13 patients. However, five of these were secondary AVFs with previous distal AV grafts or AVFs placed elsewhere; effectively, late staged procedures. Follow-up was a mean of 11 months (range, 2.0-31.7 months). Primary patency, primary-assisted patency, and cumulative (secondary) patency were 52.0%, 84.9%, and 92.4% at 12 months and 46.2%, 75.5%, and 92.4% at 24 months, respectively. Harvesting the brachial vein was tedious and more difficult than harvesting other superficial veins. No prosthetic grafts were used.


CONCLUSIONS
BVT-AVFs provide a suitable option for autogenous access when the basilic vein is absent in patients with difficult access extremities. Most patients required intervention for access maturation or maintenance. Most BVT-AVFs were created with staged procedures. Cumulative (secondary) patency was 92.4% at 24 months.
Department of Surgery, University of Oklahoma College of Medicine, Tulsa, OK, USA. William-Jennings@ouhsc.edu
William C
WC
Jennings
Matthew J
MJ
Sideman
Kevin E
KE
Taubman
Thomas A
TA
Broughan
D000293:Adolescent; D000328:Adult; D000368:Aged; D000369:Aged, 80 and over; D001166:Arteriovenous Shunt, Surgical / Q000009:adverse effects / Q000379:methods*; D001916:Brachial Artery / Q000503:physiopathology / Q000601:surgery*; D016121:Brachiocephalic Veins / Q000503:physiopathology / Q000637:transplantation*; D005260:Female; D006083:Graft Occlusion, Vascular / Q000209:etiology / Q000503:physiopathology; D006801:Humans; D008297:Male; D008875:Middle Aged; D017534:Radial Artery / Q000503:physiopathology / Q000601:surgery*; D006435:Renal Dialysis; D012189:Retrospective Studies; D013997:Time Factors; D020858:Tissue and Organ Harvesting; D014182:Transplantation, Autologous; D016896:Treatment Outcome; D014654:Vascular Patency; D055815:Young Adult