Key result
Statin use after ICU admission was significantly associated with a reduced risk of delirium (OR 0.76) in patients with congestive heart failure.
Why the study?
The relationship between statin use and delirium remains controversial, prompting evaluation of the association between statin exposure and delirium and in-hospital mortality in patients with congestive heart failure.
Does statin use reduce delirium and in-hospital mortality in patients with congestive heart failure admitted to the intensive care unit?
Cohort (n=8,396)
No
Does statin use reduce delirium and in-hospital mortality in patients with congestive heart failure admitted to the intensive care unit?
Odds Ratio: 0.76 (95% CI 0.66–0.87)
Absolute Event Rate: 10.6% vs 15.9%
p-value: p=<0.001
Statin administration in the intensive care unit is associated with a significant reduction in both delirium and in-hospital mortality among patients with congestive heart failure.
Statin use was associated with lower delirium and mortality in ICU heart failure patients; leaves open causality and practice change pending trials.
Background The relationship between statin use and delirium remains controversial; therefore, we aimed to study the association between statin exposure and delirium and in-hospital mortality in patients with congestive heart failure. Methods In this retrospective study, patients with congestive heart failure were identified from the Medical Information Mart for Intensive Care database. The primary exposure variable was statin use 3 days after admission to the intensive care unit, and the primary outcome measure was the presence of delirium. The secondary outcome measure was in-hospital mortality. Since the cohort study was retrospective, we used inverse probability weighting derived from the propensity score to balance various variables. Results Of 8,396 patients, 5,446 (65%) were statin users. Before matching, the prevalence of delirium was 12.5% and that of in-hospital mortality was 11.8% in patients with congestive heart failure. Statin use was significantly negatively correlated with delirium, with an odds ratio of 0.76 (95% confidence interval: [0.66–0.87]; P < 0.001) in the inverse probability weighting cohort and in-hospital mortality of 0.66 (95% confidence interval: [0.58–0.75]; P < 0.001). Conclusion Statins administered in the intensive care unit can significantly reduce the incidence of delirium and in-hospital mortality in patients with congestive heart failure.
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Xia et al. (2023) conducted a cohort in Congestive heart failure (n=8,396). Statin use vs. Non-statin use was evaluated on Occurrence of delirium during the ICU stay (OR 0.76, 95% CI 0.66-0.87, p=<0.001). Statin use after ICU admission was significantly associated with a reduced risk of delirium (OR 0.76) in patients with congestive heart failure.
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