“…More recently, several studies and a meta-analysis confirmed these findings, showing the effectiveness of a statin loading dose before PCI to improve short-term CV outcomes (RR 1Á08 [CI 95% 1Á02-1Á14]; P = 0Á01) [38,[40][41][42]. On the other hand, other clinical studies showed controversial results on this role for statins [28,30,34,36,37]. However, the small sample size of some randomized trials [34,36,37] and the observational design of other studies [28,30] may impair the statistical power and then their reliability to identify a protective effect over a long-term follow-up, as suggested by Lev and coworkers [33].…”