Affiliation:
1. AKDHC Ambulatory Surgery Center, Arizona Kidney Disease and Hypertension Center, Phoenix, AZ, USA
Abstract
Objective: Substantial percentages of cephalic arteriovenous fistulas are situated too deep and require superficialization before use for hemodialysis. The superficialization techniques are diverse: tunnel transposition, elevation, elevation transposition, and lipectomy. Since the fistula veins are not mobilized during lipectomy, it is believed that lipectomy produces better outcomes than other techniques. However, no available report directly compares lipectomy with other techniques. The objective of this report is to compare the outcomes of cephalic elevation transposition with lipectomy. Methods: The clinical data of patients who underwent second-stage cephalic elevation transposition or lipectomy at an ambulatory surgery center from 2009 to 2017 were analyzed ( n = 153). Results: Comparing the cephalic elevation transposition group ( n = 125) with the lipectomy group ( n = 28), the mean body mass index was 36.8 ± 7.6 versus 38.1 ± 7.2 ( p = 0.41); the percentage of upper arm fistulas was 84% versus 61% ( p < 0.01); the mean follow-up was 20.1 ± 17.5 versus 38.6 ± 24.4 months ( p < 0.01); the primary patency rates of the whole fistula conduits were 42% versus 50% at 1 year ( p = 0.08); the secondary patency rates were 99% versus 100% at 1 year ( p = 0.22); the primary patency rates of the superficialized vein segments were 73% versus 68% at 1 year ( p = 0.72); and the mean number of percutaneous interventions required for the superficialized vein segments was 0.49 ± 1.10 versus 0.43 ± 0.71 per access-year ( p = 0.74). Conclusion: Cephalic elevation transposition and lipectomy are both reliable techniques for superficialization of cephalic fistula veins and their outcomes are comparable.
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