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. 2015 Nov;31(6):528-35.
doi: 10.6515/acs20150421a.

Lack of Association between High-Density Lipoprotein Cholesterol and Angiographic Coronary Lesion Severity in Chinese Patients with Low Background Low-Density Lipoprotein Cholesterol

Chieh-Shou Su  1 , Kuan-Ju Chen  2 , Wayne Huey-Herng Sheu  3 , Ya-Ling Yang  4 , Tsun-Jui Liu  1 , Wei-Chun Chang  1 , Kuo-Yang Wang  5 , Wen-Lieng Lee  1
Affiliations

Lack of Association between High-Density Lipoprotein Cholesterol and Angiographic Coronary Lesion Severity in Chinese Patients with Low Background Low-Density Lipoprotein Cholesterol

Chieh-Shou Su et al. Acta Cardiol Sin. 2015 Nov.

Abstract

Background: The atheroprotective role of high-density lipoprotein (HDL-C) particles as measured by HDL-C level in coronary arterial disease (CAD) remains unsettled. The aim of our study was to ascertain whether HDL-C was associated with the development and severity of coronary artery disease in Chinese patients who underwent coronary angiogram with low background Low-density lipoprotein (LDL-C) levels, which has not been previously investigated.

Methods: Between March 1995 and May 2000, 566 consecutive patients (408 males, 66.7 ± 11.3 years of age) with background LDL-C less than 100 mg/dl who underwent coronary artery angiography at our cath lab for suspected CAD were retrospectively recruited into the study. The severity of coronary lesions was measured by conventional coronary angiography and modified Gensini scores.

Results: In those subjects with significant coronary lesions, there were more males and conventional CAD risk factors of diabetes mellitus, smoking, and chronic renal disease. They were also older compared to those in the control group. However, total cholesterol, LDL-C, HDL-C, triglyceride levels and use of statins were similar in both groups. In those subjects with significant coronary lesions, there was no difference in conventional coronary lesion severity or modified Gensini score between the quartered HDL-C subgroups. Furthermore, there was no significant correlation between serum HDL-C level and modified Gensini scores. In linear regression analysis, HDL-C was not an independent predictor for modified Gensini scores. Furthermore, HDL-C was also not an independent risk factor for the presence of significant coronary lesions in low LDL-C patients in logistic regression analysis.

Conclusions: In Chinese patients with low background LDL-C, serum HDL-C was not associated with development of CAD or lesion severity in patients with suspected CAD. Therefore, HDL-C did not appear to be atheroprotective in these patients.

Key words: Coronary artery disease; Gensini score; High-density lipoprotein cholesterol.

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Figures

Figure 1
Figure 1
The relationship between modified Gensini scores and HDL-C level.
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