title: Statins for the prevention and treatment of acute lung injury and acute respiratory distress syndrome: A systematic review and meta-analysis.
abstract: The purpose of this meta-analysis was to assess whether statins could reduce the morbidity of acute lung injury and acute respiratory distress syndrome (ALI/ARDS) in high-risk patients and improve the clinical outcomes of patients with ALI/ARDS. Studies were obtained from PubMed, Medline, Embase and Cochrane Central Register of Controlled Trials. Randomized controlled trials (RCTs) and cohort studies, which reported morbidity, mortality, ventilator-free days, length of stay in intensive care unit and hospital or oxygenation index, were included in our meta-analysis. Risk ratio (RR) and weighted mean difference (WMD) were calculated using fixed or random effect model. A total of 13 studies covering 12 145 patients were included. Both the only RCT (P = 0.10) and cohort studies (RR, 1.02; 95% CI, 0.67 to 1.55; P = 0.94) showed that statin therapy did not lower the morbidity of ALI/ARDS in high-risk patients. The mortality of ALI/ARDS patients was less likely to be improved by statins (RCT, RR, 1.00; 95% CI, 0.84 to 1.20; P = 0.97; cohort studies, RR, 1.04; 95% CI, 0.85 to 1.27; P = 0.72). Moreover, no significant difference was observed in ventilator-free days, length of stay in intensive care unit as well as hospital and oxygenation index. This meta-analysis suggests that statins neither provide benefit for lowering the morbidity of ALI/ARDS in high-risk patients nor improve the clinical outcomes of ALI/ARDS patients. Hence, it may not be appropriate to advocate statin use for the prevention and treatment of ALI/ARDS.
authors.affiliation: Department of Cardiology, The Second Affiliated Hospital of Chongqing Medical University, Chongqing, China.
authors.forename: Bo
authors.initials: B
authors.lastname: Xiong
authors.affiliation: Department of Cardiology, The Second Affiliated Hospital of Chongqing Medical University, Chongqing, China.
authors.forename: Chunbin
authors.initials: C
authors.lastname: Wang
authors.affiliation: Department of Cardiology, The Second Affiliated Hospital of Chongqing Medical University, Chongqing, China.
authors.forename: Jie
authors.initials: J
authors.lastname: Tan
authors.affiliation: Department of Cardiology, The Second Affiliated Hospital of Chongqing Medical University, Chongqing, China.
authors.forename: Yin
authors.initials: Y
authors.lastname: Cao
authors.affiliation: Department of Cardiology, The Second Affiliated Hospital of Chongqing Medical University, Chongqing, China.
authors.forename: Yanke
authors.initials: Y
authors.lastname: Zou
authors.affiliation: Department of Cardiology, The Second Affiliated Hospital of Chongqing Medical University, Chongqing, China.
authors.forename: Yuanqing
authors.initials: Y
authors.lastname: Yao
authors.affiliation: Department of Cardiology, The Second Affiliated Hospital of Chongqing Medical University, Chongqing, China.
authors.forename: Jun
authors.initials: J
authors.lastname: Qian
authors.affiliation: Department of Cardiology, The Second Affiliated Hospital of Chongqing Medical University, Chongqing, China.
authors.forename: Shunkang
authors.initials: S
authors.lastname: Rong
authors.affiliation: Department of Cardiology, The Second Affiliated Hospital of Chongqing Medical University, Chongqing, China.
authors.forename: Yuwen
authors.initials: Y
authors.lastname: Huang
authors.affiliation: Department of Cardiology, The Second Affiliated Hospital of Chongqing Medical University, Chongqing, China.
authors.forename: Jing
authors.initials: J
authors.lastname: Huang
mesh_terms: D055371:Acute Lung Injury / Q000401:mortality / Q000517:prevention & control; D006801:Humans; D019161:Hydroxymethylglutaryl-CoA Reductase Inhibitors / Q000494:pharmacology*; D007362:Intensive Care Units / Q000706:statistics & numerical data; D012128:Respiratory Distress Syndrome / Q000401:mortality / Q000517:prevention & control; D018570:Risk Assessment; D016896:Treatment Outcome
chemical_list: D019161:Hydroxymethylglutaryl-CoA Reductase Inhibitors
keywords: acute lung injury; acute respiratory distress syndrome; meta-analysis; mortality; statins