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    Small dense LDL-cholesterol is an established risk factor for atherosclerosis, but it is not routinely measured in clinical practice, and its measurement has not yet been reimbursed. The Sampson equation that uses triglyceride and LDL-cholesterol levels has very recently been proposed to estimate small dense LDL-cholesterol levels. We validated its accuracy in patients with acute coronary syndrome.Serum samples were obtained on admission from hospitalized patients with acute coronary syndrome before heparinization. Small dense LDL-cholesterol levels were measured directly and were also estimated from triglyceride and LDL-cholesterol levels using the Sampson equation. The correlation between the Sampson's equation and direct measurement was investigated.A total of 55 patients were enrolled. The median age was 75 (65, 84) years old, and 35 (64%) were men. There was a moderate correlation between the two methods (r = 0.76, P < 0.001). A lower level of small dense LDL-cholesterol was independently associated with a greater overestimation of the Sampson equation.The Sampson equation is useful for estimating small dense LDL-cholesterol levels in patients with acute coronary syndrome. However, the estimated value may be overestimated in patients with low lipid profiles.


    Teruhiko Imamura, Nikhil Narang, Masakazu Hori, Koichiro Kinugawa. Estimation of Small Dense LDL-Cholesterol Levels in Patients with Acute Coronary Syndrome. International heart journal. 2023;64(4):596-601

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    PMID: 37518340

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