Success and complication rates for AVF placement in patients who underwent VPR vs. RPOPS were 100% vs. 91.3% (P = 0.27) and 0 vs. 8.7% (P = 0.23) respectively. A greater proportion of AVF created following RPOPS required intervention before maturation compared to VPS (47.6% vs. 19%, P = 0.05). The median primary patency of AVF created following VPS vs. RPOPS was 492 (IQR 222, 1219) vs. 169 (IQR 116, 414) days (P = 0.02). The cumulative patency however did not differ between the 2 groups (median = 807 (IQR 499, 1308) vs. 1059 (IQR 331, 1263) days, P = 0.26) CONCLUSIONS: This small study suggests that VPS may favourably influence the survival of primary AVF and reduce the need for assisted interventions. However, confirmation with larger randomized controlled trial is warranted. This article is protected by copyright. All rights reserved.
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