Sikarin Upala1, Kamonkiat Wirunsawanya2, Veeravich Jaruvongvanich3, Anawin Sanguankeo4. 1. Department of Internal Medicine, Bassett Medical Center and Columbia University College of Physicians and Surgeons, Cooperstown, NY, USA; Department of Preventive and Social Medicine, Faculty of Medicine Siriraj Hospital, Mahidol University, Bangkok, Thailand. Electronic address: sikarin.upala@bassett.org. 2. Department of Internal Medicine, University of Hawaii, Honolulu, HI, USA. Electronic address: kamonac120@gmail.com. 3. Department of Internal Medicine, University of Hawaii, Honolulu, HI, USA; Department of Medicine, King Chulalongkorn Memorial Hospital, Bangkok, Thailand. Electronic address: veeravich_j@hotmail.com. 4. Department of Internal Medicine, Bassett Medical Center and Columbia University College of Physicians and Surgeons, Cooperstown, NY, USA; Department of Preventive and Social Medicine, Faculty of Medicine Siriraj Hospital, Mahidol University, Bangkok, Thailand. Electronic address: anawin.sanguankeo@bassett.org.
Abstract
BACKGROUND: Arterial stiffness has been observed to be an independent predictor for cardiovascular events. Effects of cholesterol lowering agents (statins) on arterial stiffness are inconsistent. We conducted a systematic review with a meta-analysis of all RCTs investigating the impact of statin therapy on arterial properties. METHODS: We comprehensively searched the databases of MEDLINE, EMBASE, and Cochrane from their dates of inception through April 2016. The inclusion criteria were published RCTs comparing change in arterial stiffness between statin administration and active control or placebo groups. Arterial stiffness is determined by aortic pulse wave velocity (PWV). We used a random-effects model and calculated pooled standardized mean difference (SMD) with 95% confidence intervals (CI) comparing change in PWV between the statin and control groups. RESULTS: Six studies were included in the meta-analysis. Statin therapy includes simvastatin, rosuvastatin, lovastatin, fluvastatin, and atorvastatin. Compared with the active control or placebo group, the statin therapy group had lower aPWV (SMD=2.31, 95% CI: 1.15-3.45, Pheterogeneity=0.07, I2=93%). CONCLUSION: Our meta-analysis demonstrates that statin therapy has a beneficial effect on aortic arterial stiffness. Further studies should be conducted to assess the effects of this therapy on arterial stiffness at various sites and conditions.
BACKGROUND: Arterial stiffness has been observed to be an independent predictor for cardiovascular events. Effects of cholesterol lowering agents (statins) on arterial stiffness are inconsistent. We conducted a systematic review with a meta-analysis of all RCTs investigating the impact of statin therapy on arterial properties. METHODS: We comprehensively searched the databases of MEDLINE, EMBASE, and Cochrane from their dates of inception through April 2016. The inclusion criteria were published RCTs comparing change in arterial stiffness between statin administration and active control or placebo groups. Arterial stiffness is determined by aortic pulse wave velocity (PWV). We used a random-effects model and calculated pooled standardized mean difference (SMD) with 95% confidence intervals (CI) comparing change in PWV between the statin and control groups. RESULTS: Six studies were included in the meta-analysis. Statin therapy includes simvastatin, rosuvastatin, lovastatin, fluvastatin, and atorvastatin. Compared with the active control or placebo group, the statin therapy group had lower aPWV (SMD=2.31, 95% CI: 1.15-3.45, Pheterogeneity=0.07, I2=93%). CONCLUSION: Our meta-analysis demonstrates that statin therapy has a beneficial effect on aortic arterial stiffness. Further studies should be conducted to assess the effects of this therapy on arterial stiffness at various sites and conditions.
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