This article is based on a comprehensive search in the medline, embase, and central databases was conducted in order to identify eligible randomized controlled trials evaluating dcb angioplasty for hemodialysis vascular access dysfunction.The aim of this systematic review and meta-analysis is to assess the patency outcomes following dcb angioplasty, as compared to conventional balloon (cb) angioplasty for the stenosis of hemodialysis vascular access.The primary endpoint was the 6-month target lesion primary patency and the secondary endpoints were 12-month target lesion primary patency and procedure-related complications.Risk ratios (rr) were pooled and relevant subgroups were analyzed separately.Eleven randomized controlled trials comprised of 487 patients treated with dcb angioplasty and 489 patients treated with cb angioplasty were included.There were no significant differences in the target lesion primary patency at 6 months [rr, 0.75; 95% confidence interval (ci), 0.56, 1.01; p = 0.06] and at 12 months (rr 0.89; 95% ci, 0.79, 1.00; p = 0.06).The absence of benefit for the dcb group remained, even in the arteriovenous fistula subgroup or the subgroup of studies excluding central vein stenosis.The risk of procedure related complication did not differ between the two groups (rr 1.00; 95% ci 0.98, 1.02; p =0.95).The occurrence of dissection and pseudoaneurysm is reported to have occurred in the dcb group of the irani study (2018) during a 12 month follow-up period.There is no indication in the literature that the dissection was treated or caused by the inpact admiral device used for treatment.
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