Interrupted versus continuous suturing techniques for radiocephalic arteriovenous fistulas: a randomized control trial

Abstract

Background:   Radiocephalic arteriovenous fistula (RCF) was a vascular access for hemodialysis but patency rate are unsatisfied only about 50-65 percent success in conventional continuous suturing technique. While interrupted suturing technique widely used for small vascular anastomosis in microsurgical field.

Objective:     This study hypothesized that interrupted suturing technique may improve outcome of RCF.

Study design:A randomized controlled trial compared continuous (n=32) and interrupted  (n=32) suturing technique on RCF creation, was conducted between February 2019 and January 2020. The primary outcome was patency at 6 weeks, secondary outcome was functional patency at 6 weeks and complications in each group were described.

Results:         Patency at 6 weeks was higher in interrupted suturing technique group but no significant difference (84.38 vs 78.13; P=0.375). Also functional patency was higher in interrupted suturing technique group but no significant difference (75.00 vs 71.88; P=0.500). One patient of interrupted suturing technique group developed postoperative bleeding event.

Conclusion:   Interrupted suturing technique was the choice of anastomosis creation equivalent to continuous suturing technique which was conventional mattress for radiocephalic arteriovenous fistula.

Keyword:       suturing technique, radiocephalic arteriovenous fistula, vascular access, vascular anastomosis