title: Effect of statins pretreatment on periprocedural myocardial infarction in patients undergoing percutaneous coronary intervention: a meta-analysis.
abstract: BACKGROUND
  Periprocedural myocardial injury remains the most common complication associated with percutaneous coronary intervention (PCI). Previous studies have demonstrated that even a small elevation of cardiac enzymes is associated with higher risk of mortality during follow-up.
  
  
  OBJECTIVE
  We performed a meta-analysis based on all currently available randomized controlled trials (RCT) to evaluate the beneficial effects of hydroxymethylglutaryl-CoA reductase inhibitors (statins) given before PCI on preventing periprocedural myocardial infarction (MI).
  
  
  METHODS
  The published literature was scanned by formal searches of electronic databases (PubMed, EMBASE, and the Cochrane Central Register of Controlled Trials) and conference proceedings up through August 2009. RCTs were eligible for inclusion if they compared preprocedural statins versus placebo treatment in patients not taking statins previously but scheduled for PCI and had the data of periprocedural MI reported by the trial investigators.
  
  
  RESULTS
  Prespecified criteria were met by 6 RCTs involving 2,088 patients. During the periprocedural period, 81 of 1,051 patients (7.7%) in the statins pretreatment group developed periprocedural MI, significantly less than 147 of 1,037 (14.2%) patients assigned to the control group (OR 0.51, 95% CI 0.38-0.67; P< 0.001). During 1-month follow-up, only 4 deaths, 7 non-periprocedural Q-wave MIs, and 4 revascularizations occurred in all 2,088 enrolled patients. The composite of death, MI, or target vessel revascularization at 1 month, essentially driven by periprocedural MI, was reported in 8.0% in the statins pretreatment group and 15.3% in the control group (OR 0.48, 95% CI 0.36-0.64; P< 0.001).
  
  
  CONCLUSIONS
  This meta-analysis supports the effectiveness of statins pretreatment on reducing the rate of periprocedural MI in patients undergoing PCI.
authors.affiliation: Shanghai Institute of Cardiovascular Diseases, Zhongshan Hospital, Fudan University, 180 Fenglin Road, Shanghai, China.
authors.forename: Feng
authors.initials: F
authors.lastname: Zhang
authors.forename: Lili
authors.initials: L
authors.lastname: Dong
authors.forename: Junbo
authors.initials: J
authors.lastname: Ge
mesh_terms: D000368:Aged; D015906:Angioplasty, Balloon, Coronary / Q000009:adverse effects; D003324:Coronary Artery Disease / Q000188:drug therapy / Q000628:therapy; D005260:Female; D006801:Humans; D019161:Hydroxymethylglutaryl-CoA Reductase Inhibitors / Q000627:therapeutic use*; D008297:Male; D008875:Middle Aged; D009203:Myocardial Infarction / Q000517:prevention & control*; D016032:Randomized Controlled Trials as Topic; D012107:Research Design; D012307:Risk Factors; D013997:Time Factors; D016896:Treatment Outcome
chemical_list: D019161:Hydroxymethylglutaryl-CoA Reductase Inhibitors