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 ORIGINAL ARTICLE
Year : 2009  |  Volume : 19  |  Issue : 2  |  Page : 57-61

Randomized controlled trial of clopidogrel to prevent primary arteriovenous fistula failure in hemodialysis patients


Department of Nephrology, Dialysis and Kidney Transplanation, Jondi Shapour University of Medical Sciences, Ahwaz, Iran

Correspondence Address:
A Ehsanpour
Department of Nephrology, Dialysis and Kidney Transplantation, Golestan Hospital, Ahwaz
Iran
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Source of Support: None, Conflict of Interest: None


DOI: 10.4103/0971-4065.53323

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The optimal vascular access for chronic maintenance hemodialysis is the arteriovenous fistula (AVF). Several studies suggest a role for antiplatelet agents in the prevention of primary AVF failure. A double-blind, randomized trial was conducted to assess the efficacy and safety of clopidogrel in hemodialysis patients. Ninety three patients were randomized to receive 75 mg/daily of clopidogrel or placebo. The treatment was initiated 7-10 days prior to scheduled access surgery and continued up to six weeks postoperatively, and then patients were monitored for six months. The primary outcome was AVF failure eight weeks after fistula creation. With a permuted block randomization schedule, 46 patients received clopidogrel and 47 patients received control placebo. The primary AVF failures at two months were 21.6% in placebo group and 5.2% in clopidogrel group ( P = 0.03). The hazard ratio for the incidence of primary AVF failure was 0.72 (CI 95%, 0.41-1.01). Analysis of covariables indicated that this effect occurred principally as a result of clopidogrel administration. First hemodialysis from newly created AVF in clopidogrel group was significantly more successful than placebo group ( P = 0.008). No life-threatening adverse event or severe bleeding was recorded in both groups. Clopidogrel seems to be effective and safe for prevention of primary AVF failure in hemodialysis patients.






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Indian Journal of Nephrology
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Online since 20th Sept '07