Objective: The randomized controlled trail was carried out to investigate the influence of statin pretreatment on clinical efficacy of carotid artery stenting (CAS). Methods: 160 eligible patients were randomly divided into statin group (n ¼ 82) and control group (n ¼ 78). The patients in statin group received 40 mg atorvastatin daily 7 days before operation. Major endpoints included transient ischemic attack (TIA), stroke, death, myocardial infarction (MI), and other cardiac adverse events within 30 days after CAS. Results: Preoperative baseline information was similar between the statin and control groups (p > 0.05 for all). Within 48 h after operation, the occurrence rate of CIN (3.66% vs 8.97%, p ¼ .019) and new infarction (4.88% vs. 14.10%, p ¼ .045) were significantly lower in statin group than in control group. 30 days after CAS, the incidences of TIA (12.20% vs. 26.92%, p ¼ .018), ischemic stroke (6.10% vs. 16.67%, p ¼ .034), and other cardiac complications (7.32% vs. 19.23%, p ¼ .026) were also significantly lower in statin group, than in the control group. Multiple analysis demonstrated that statin use exerted protective effect against ischemic stroke (OR ¼ 0.038, 95% CI ¼ 0.003-0.543, p ¼ .016) and other cardiac complications (OR ¼ 0.208, 95%CI ¼ 0.063-0.694, p ¼ .011). Conclusion: Pre-treatment with statin is an effective and safe strategy to prevent from perioperative complications and to improve postoperative outcomes in patients undergoing CAS.
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