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  • Title: Anticardiolipin antibodies in hemodialysis patients with hepatitis C and their role in fistula failure.
    Author: Ozmen S, Danis R, Akin D, Batun S.
    Journal: Clin Nephrol; 2009 Sep; 72(3):193-8. PubMed ID: 19761724.
    Abstract:
    BACKGROUND/AIMS: Several conflicting results are presently reported regarding raised IgG and IgM-anticardiolipin antibodies (ACA) titers in hemodialysis (HD) patients and their role in vascular access dysfunction. We aimed to determine the prevalence of both IgM and IgG-ACA titers and to analyze retrospectively their role in primary and secondary arteriovenous fistula (AVF) failure in a homogeneous group of HD patients with chronic hepatitis C. METHODS: This study included 103 adults on maintenance hemodialysis with chronic hepatitis C infection. All participants had blood samples drawn predialysis and after an overnight fast. Analysis included biochemistry, IgG and IgM ACA, Anti-HCV, HBsAg, serum HCV RNA and HCV genotyping. RESULTS: The prevalence of IgG-ACA was 14.6% (15/103). No patient had a positive value of the IgM-ACA test. HCV replication was detected in 52 of 76 patients. The most common HCV genotype was genotype 1 (90%). The percentage of females was higher in ACA(+) group (p = 0.038). There were no significant differences between subjects with and without ACA-IgG regarding other parameters studied. No difference in regard to AVF survival was detected between ACA(+) and ACA(-) groups (p > 0.05). CONCLUSION: We found no significant differences in primary or secondary AVF failure between patients with elevated and normal ACA. Therefore, we conclude that AVFF may be caused by factors other than ACA in these patients. More prospective studies are needed to confirm this observation.
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