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Chin Med J (Engl). 2013;126(9):1755-60.

Effect of pre-procedural statin therapy on myocardial no-reflow following percutaneous coronary intervention: a meta analysis.

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Department of Evidence Based Medicine, Fuwai Hospital and Cardiovascular Institute, Peking Union Medical College and Chinese Academy of Medical Sciences, Beijing 100037, China.



Successful revascularization of coronary artery disease, especially ST-elevation myocardial infarction (STEMI), does not always mean optimal myocardial reperfusion in a portion of patients because of no-reflow phenomenon. We hypothesized that statins might attenuate the incidence of myocardial no-reflow when used before percutaneous coronary intervention (PCI). The purpose of this study was to summarize the evidence of pre-procedural statin therapy to reduce myocardial no-reflow after PCI.


We searched the MEDLINE, Cochrane, and databases from inception to October 2012 for clinical trials that examined statin therapy before PCI. We required that studies initiated statins before PCI and reported myocardial no-reflow. A DerSimonian-Laird model was used to construct random-effects summary risk ratios.


In all, 7 studies with 3086 patients met our selection criteria. The use of pre-procedural statins significantly reduced post-procedural no-reflow by 4.2% in all PCI patients (risk ratio (RR) 0.56, 95% confidence interval (CI) 0.35 to 0.90, P = 0.016), and attenuated by 5.0% in non-STEMI patients (RR 0.41, 95% CI 0.18 to 0.94, P = 0.035). This benefit was mainly observed in the early or acute intensive statin therapy populations (RR 0.43, 95% CI 0.26 to 0.71, P = 0.001).


Acute intensive statin therapy before PCI significantly reduces the hazard of post-procedural no-reflow phenomenon. The routine use of statins before PCI should be considered.

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