The impact of statin therapy on plasma levels of von Willebrand factor antigen: Systematic review and meta-analysis of Randomised placebo-controlled trials

Academic Article

Abstract

  • © Schattauer 2016. Increased plasma levels of von Willebrand factor antigen (vWF:Ag) are associated with high risk of coronary artery disease. The effect of sta­tin therapy on vWF:Ag levels remains uncertain. Therefore the aim of this meta-analysis was to evaluate the effect of statin therapy on vWF:Ag Levels. A systematic multiple-database search was carried out to identify randomized controlled trials (RCTs) that investigated the effect of statins on plasma vWF:Ag levels. Random-effect meta-analy-sis of 21 treatment arms revealed a significant decrease in plasma vWF:Ag levels following statin therapy (SMD: -0.54, 95 %CI: -0.87, -0.21, p=0.001). In subgroup analyses, the greatest effect was ob­served with simvastatin (SMD: -1.54, 95 %>CI: -2.92, -0.17, p=0.028) and pravastatin (SMD: -0.61, 95 %>CI: -1.18, -0.04, p=0.035), but not with fluvastatin (SMD: -0.34, 95 %>CI: -0.69, 0.02, p=0.065), atorvas-tatin (SMD: -0.23, 95 %>CI: -0.57, 0.11, p=0.179) and rosuvastatin (SMD: -0.20, 95 %% CI: -0.71, 0.30, p=0.431). The lowering effect of statins on plasma vWF:Ag levels was greater in the subset of studies lasting > 12 weeks (SMD: -0.70, 95 %>CI: -1.19, -0.22, p=0.005) com­pared with that of studies lasting < 12 weeks (SMD: -0.34, 95 %>CI: -0.67, 0.003, p=0.052). Finally, low-intensity statin therapy was not associated with a significant reduction in vWF:Ag levels (SMD: -0.28, 95%CI: -0.82, 0.27, p=0.320), but a significant effect was observed in high-intensity statin trials (SMD: -0.66, 95 %>CI: -1.07, -0.24, p=0.002). This meta-analysis of available RCTs demonstrates a signifi­cant reduction in plasma vWF:Ag levels following statin therapy.
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    Author List

  • Sahebkar A; Serban C; Ursoniu S; Mikhailidis DP; Undas A; Lip GYH; Bittner V; Ray KK; Watts GF; Kees Hovingh G
  • Start Page

  • 520
  • End Page

  • 532
  • Volume

  • 115
  • Issue

  • 3