Statins and congestive heart failure.

Despite many post hoc analyses of cardiovascular databases in recent years suggesting a benefit of statins in the prevention and treatment of congestive heart failure (HF), a prospective study of statin therapy on two clinically relevant end points--HF morbidity and survival--had not been reported until 2007. However, a large-scale prospective trial, Controlled Rosuvastatin Multinational Trial in Heart Failure (CORONA), has just reported its primary results. These results somewhat surprisingly show no survival benefit in a group of patients with ischemic systolic HF given low-dose rosuvastatin. In addition to this uncertainty generated by the results of CORONA, there remains additional uncertainty in the existing, predominantly retrospective data on statins because of the potential bias in study designs, use of post hoc subgroup analyses, and lack of mechanistic data. This review critically evaluates the recent literature in this area.