Statins and long-term survival after isolated valve surgery: The importance of valve type, position and procedure
European Journal of Cardio-Thoracic Surgery,  Clinical Article

Pullan M, et al. – The study aims to investigate whether valve position, type and procedure are important factors in determining the beneficial effects of statin therapy with regard to long–term survival in patients undergoing isolated single valve surgery. Previous publications have not distinguished valve type, position and repair as possible factors influencing statin–therapy outcomes. Statin therapy is associated with increased long–term survival postaortic valve replacement with a biological valve only. Statin therapy had no survival benefit in patients undergoing mitral valve repair or a mechanical valve replacement. A randomized trial is necessary to confirm or refute the findings.


  • A prospective single-institution cardiac surgery database was analysed.
  • Univariate, multivariate stepwise linear, logistic and Cox regression analysis and propensity matching were performed to identify if statins were associated with increased survival post-valve surgery.


  • Overall mortality was 3.4% (n = 172) for all cases, n = 5013.
  • The median follow-up was 5.8 years. Kaplan–Meier survival analysis indicated that statin therapy was beneficial for all patients undergoing isolated valve surgery, n = 5013, P = 0.03 and isolated aortic valve surgery, n = 3220, P = 0.03, but not isolated mitral valve surgery n = 1793, P = 0.4.
  • Cox regression analysis of the study cohort revealed that statin therapy was a significant factors determining long-term survival in the study cohort, postisolated aortic valve replacement and postisolated biological aortic valve replacement.
  • Statins therapy was not associated with an increased long-term survival post-mitral valve replacement or repair.
  • Propensity matching resulted in 1555 patients receiving statins being matched 1:1 with those not receiving statins.
  • The results after propensity matching concurred with that of the Cox regression analyses, demonstrating that statin therapy was significantly associated with reduced in-hospital mortality, hospital length of stay and postoperative creatinine kinase, muscle-brain isoenzyme release.

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