Statin therapy as prevention against development of acute respiratory distress syndrome

Critical Care Medicine, 05/01/2012

Statin therapy at the time of intensive care unit admission was not associated with a lower rate of development of acute respiratory distress syndrome after matching for patient propensity to receive statins. Statin therapy was not associated with improvements in acute respiratory distress syndrome mortality, organ failure, or days free from mechanical ventilation.

Methods

  • Patients were followed–up for the primary outcome of acute respiratory distress syndrome and secondary outcomes of intensive care unit and 60–day mortality, organ dysfunction, and ventilator–free days in a secondary analysis of a prospective cohort study.
  • Receipt of statin therapy was recorded.
  • Propensity score matching was used to adjust for confounding by indication.
  • Critically ill patients (2,743) with acute respiratory distress syndrome risk factors.

Results

  • Acute respiratory distress syndrome developed in 738 (26%) patients; 413 patients (15%) received a statin within 24hrs of intensive care unit admission.
  • Those who had received a statin within 24hrs had a lower rate of development of acute respiratory distress syndrome (odds ratio 0.56; 95% confidence interval 0.43–0.73; p<.0001).
  • After multivariate adjustment for potential confounders, this association remained significant (odds ratio 0.69; 95% confidence interval 0.51–0.92; p=.01).
  • However, after propensity score matching, the association was not statistically significant (odds ratio 0.79; 95% confidence interval 0.57–1.10; p=.16).
  • Statin use was not associated with reduced acute respiratory distress syndrome mortality, organ dysfunction, or ventilator–free days.
  • Results of the study were presented in accordance with STROBE (Strengthening the Reporting of Observational Studies in Epidemiology) guidelines.

Print Article Summary Cat 2 CME Report