JOURNAL ARTICLE
MULTICENTER STUDY

Benefit of early statin therapy in patients with acute myocardial infarction who have extremely low low-density lipoprotein cholesterol

Ki Hong Lee, Myung Ho Jeong, Ha Mi Kim, Youngkeun Ahn, Jong Hyun Kim, Shung Chull Chae, Young Jo Kim, Seung Ho Hur, In Whan Seong, Taek Jong Hong, Dong Hoon Choi, Myeong Chan Cho, Chong Jin Kim, Ki Bae Seung, Wook Sung Chung, Yang Soo Jang, Seung Woon Rha, Jang Ho Bae, Jeong Gwan Cho, Seung Jung Park
Journal of the American College of Cardiology 2011 October 11, 58 (16): 1664-71
21982310

OBJECTIVES: We investigated whether statin therapy could be beneficial in patients with acute myocardial infarction (AMI) who have baseline low-density lipoprotein cholesterol (LDL-C) levels below 70 mg/dl.

BACKGROUND: Intensive lipid-lowering therapy with a target LDL-C value <70 mg/dl is recommended in patients with very high cardiovascular risk. However, whether to use statin therapy in patients with baseline LDL-C levels below 70 mg/dl is controversial.

METHODS: We analyzed 1,054 patients with AMI who had baseline LDL-C levels below 70 mg/dl and survived at discharge from the Korean Acute MI Registry between November 2005 and December 2007. They were divided into 2 groups according to the prescribing of statins at discharge (statin group n = 607; nonstatin group n = 447). The primary endpoint was the composite of 1-year major adverse cardiac events, including death, recurrent MI, target vessel revascularization, and coronary artery bypass grafting.

RESULTS: Statin therapy significantly reduced the risk of the composite primary endpoint (adjusted hazard ratio [HR]: 0.56; 95% confidence interval [CI]: 0.34 to 0.89; p = 0.015). Statin therapy reduced the risk of cardiac death (HR: 0.47; 95% CI: 0.23 to 0.93; p = 0.031) and coronary revascularization (HR: 0.45, 95% CI: 0.24 to 0.85; p = 0.013). However, there were no differences in the risk of the composite of all-cause death, recurrent MI, and repeated percutaneous coronary intervention rate.

CONCLUSIONS: Statin therapy in patients with AMI with LDL-C levels below 70 mg/dl was associated with improved clinical outcome.

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