Dual outflow upper arm arteriovenous fistula: An effective technique to prevent cephalic arch stenosis

Hong Pil Hwang1,2, Hee Chul Yu1,2, Jae Do Yang1,2

  • 1Department of Surgery, Jeonbuk National University Medical School, Jeonju, South Korea.

Medicine
|December 5, 2023
PubMed

Insights

Dual outflow arteriovenous fistulas (AVFs) using cephalic and basilic veins significantly reduce cephalic arch stenosis (CAS) and fistula occlusion compared to traditional brachio-cephalic AVFs (BCAVF). This surgical approach offers improved secondary patency rates for hemodialysis patients.

Area of Science:

  • Vascular Surgery
  • Nephrology
  • Dialysis Access

Background:

  • Cephalic arch stenosis (CAS) is a common complication impacting arteriovenous fistula (AVF) functionality in hemodialysis patients.
  • Brachio-cephalic AVFs (BCAVF) are susceptible to CAS, necessitating strategies to improve long-term patency.

Purpose of the Study:

  • To evaluate the effectiveness of dual outflow AVF creation, utilizing both cephalic and basilic veins, in preventing CAS.
  • To compare the incidence of CAS, fistula occlusion, and patency rates between brachio-cephalic-basilic AVF (BCBAVF) and traditional BCAVF.

Main Methods:

  • A retrospective study of 251 patients undergoing upper arm AVF creation between July 2016 and December 2019.
  • Patients were divided into two groups: 207 undergoing BCAVF and 44 undergoing BCBAVF.
  • Outcomes including CAS, fistula occlusion, and primary, primary-assisted, and secondary patency rates at 12 months were analyzed.

Main Results:

  • CAS occurred significantly less frequently in the BCBAVF group (9.1%) compared to the BCAVF group (30.4%).
  • Fistula occlusion was also lower in the BCBAVF group (4.5% vs. 15.9%).
  • While primary and primary-assisted patency showed a trend favoring BCBAVF, secondary patency rates at 12 months were significantly higher for BCBAVF (93.2%) versus BCAVF (92.2%).

Conclusions:

  • Upper arm AVF with dual cephalic and basilic vein outflow is an effective surgical method for preventing CAS.
  • This dual outflow approach offers superior secondary patency rates compared to traditional BCAVF, making it an optimal choice for hemodialysis access.