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Published on: May 14, 2013
Statin therapy improves outcomes in infective endocarditis: evidence from a meta-analysis
Mojtaba Hedayat Yaghoobi1, Ehsan Heidari2, Arman Shafiee3
1School of Medicine, Alborz University of Medical Sciences, Karaj, Iran.
Background:
Beyond its ability to decrease cholesterol, statin medication has been proved to have a variety of pleiotropic effects, such as anti-inflammatory and immunomodulatory effects. Statins are an appealing therapeutic option for individuals with infective endocarditis because of these effects, as the condition is linked to a strong inflammatory response.
Methods:
A comprehensive search was done in Medline/PubMed, Cochrane database (CENTRAL), and Google Scholar to identify relevant studies reporting outcomes of interest (rate of mortality, intensive care unit admission, and embolic events) comparing those who are on statin therapy to nonusers were included. We performed a random effect meta-analysis to pool each study's individual results.
Results:
Three articles were included in the study. The pooled results regarding our primary endpoint showed there was a significant reduction in mortality among statin users in all time points (1-year mortality: OR 0.69, 95% CI 0.61-0.79, I2: 0%; Chi2 = 0.01; p < 0.0001). Meta-analysis for the secondary outcome showed statin users are less frequently admitted to the intensive care unit (OR 0.73, 95% CI 0.59-0.90, I2: 0%; Chi2 = 0.00; p = 0.0004). The rate of mortality was significantly lower for those with a previous history of cerebrovascular disease who were on statin therapy compared to those without cerebrovascular diseases (CVD).
Conclusions:
The results of the present study support a significant association with statin therapy as a potential treatment proposed for individuals at risk of infective endocarditis.
