4.7 Article

Elevated Serum Non-HDL (High-Density Lipoprotein) Cholesterol and Triglyceride Levels as Residual Risks for Myocardial Infarction Recurrence Under Statin Treatment

Journal

ARTERIOSCLEROSIS THROMBOSIS AND VASCULAR BIOLOGY
Volume 39, Issue 5, Pages 934-944

Publisher

LIPPINCOTT WILLIAMS & WILKINS
DOI: 10.1161/ATVBAHA.119.312336

Keywords

hydroxymethylglutaryl-CoA reductase inhibitors; myocardial infarction; risk factors; triglycerides

Funding

  1. Ministry of Health, Labor, and Welfare
  2. Ministry of Education, Culture, Sports, Science, and Technology
  3. Agency for Medical Research and Development, Tokyo, Japan [15ek0210043h0001]

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Objective-Secondary prevention for recurrent myocardial infarction (MI) is one of the most important therapeutic goals in patients with old MI (OMI). Although statins are widely used for this purpose, there remains considerable residual risk even after LDL (low-density lipoprotein cholesterol) is well controlled by statins. Approach and Results-We examined clinical impacts of nHDL (nonhigh-density lipoprotein cholesterol) and its major components triglyceride and LDL as residual risks for acute MI recurrence, using the database of our CHART (Chronic Heart Failure Analysis and Registry in the Tohoku District)-2 Study, the largest-scale cohort study of cardiovascular patients in Japan. We enrolled 1843 consecutive old MI patients treated with statins (mean age 67.3 years, male 19.2%) in the CHART-2 Study. The incidence of recurrent acute MI during the median 8.6-year follow-up was compared among the groups divided by the levels of nHDL (< 100, 100-129, and = 130 mg/dL), LDL (< 70, 70-99, and = 100 mg/dL), triglyceride (< 84, 84-149, and = 150 mg/dL), and combination of LDL and triglyceride. Kaplan-Meier curves and multiple Cox proportional hazards models showed that higher levels of nHDL, but not LDL or triglyceride alone, were associated with higher incidence of recurrent acute MI. Furthermore, higher triglyceride levels were associated with higher incidence of recurrent MI in patients with LDL < 100 mg/dL but not in those with LDL = 100 mg/dL. Conclusions-These results indicate that management of residual risks for acute MI recurrence should include nHDL management considering both LDL and triglyceride in old MI patients under statin treatment.

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