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Identifying Coronary Artery Calcification on Non-gated Computed Tomography Scans
Published on: August 28, 2018
HDL-associated factors provide additional prognostic information for coronary artery disease as determined by
Ryoko Mitsutake1, Shin-ichiro Miura, Bo Zhang
1Department of Cardiology, Fukuoka University School of Medicine, Fukuoka, Japan.
Insights
Lower high-density lipoprotein cholesterol (HDL-C) levels may indicate the severity of coronary artery disease (CAD) as assessed by multi-detector row computed tomography (MDCT). This finding offers additional insight beyond other lipidemic factors.
Area of Science:
- Cardiology
- Radiology
- Biochemistry
Background:
- Atherosclerotic coronary artery disease (CAD) is linked to lipid profiles via invasive angiography.
- The study investigates the association between non-invasive CAD assessment and lipidemic factors.
Purpose of the Study:
- To test if CAD severity, determined by multi-detector row computed tomography (MDCT), correlates with lipidemic factors.
- To explore the relationship between non-invasive CAD evaluation and various blood lipid markers.
Main Methods:
- 195 patients with suspected CAD underwent MDCT coronary angiography.
- Evaluated were the number of significantly stenosed vessels (VD) by MDCT, and levels of PAF-AH, FC, PL, RLP-C, apo-B, apo-C3, apo-E, and hs-CRP.
- Patients were stratified into diabetes mellitus (DM) and non-DM groups.
Main Results:
- HDL-associated PAF-AH was lower in the DM group.
- MDCT-determined VD correlated with hypertension, ARB use, HDL-C, H-HDL, H-PL, H-FC, and RLP-C.
- Multivariate analysis identified HDL-C as the strongest correlate of VD.
Conclusions:
- Lower high-density lipoprotein cholesterol (HDL-C) levels may serve as an indicator of CAD severity.
- HDL-C provides additional information on CAD severity compared to other lipidemic factors.
- Non-invasive MDCT assessment of CAD severity is associated with specific lipid profiles.
Background:
A significant relationship has been noted between the lipid profile and atherosclerotic coronary artery disease (CAD) using invasive coronary angiography. We tested the hypothesis that the severity of CAD as determined by a non-invasive method, multi-detector row computed tomography (MDCT), is also associated with lipidemic factors.
Methods And Results:
The subjects included 195 consecutive patients who underwent coronary angiography using MDCT because of suspected CAD. The number of significantly stenosed vessels (VD) as evaluated by MDCT, platelet-activating factor acetylhydrolase (PAF-AH), free cholesterol (FC), phospholipid (PL), remnant-like lipoprotein particle-cholesterol (RLP-C), apolipoprotein (apo)-B, apo-C3, apo-E, and highly-sensitive C-reactive protein were determined. The subjects were divided into diabetes mellitus (DM) and non-DM groups. The HDL-associated PAF-AH level in the DM group was significantly lower than that in the non-DM group. The VD determined by MDCT was significantly associated with hypertension, administration of angiotensin II type 1 receptor blocker, high-density lipoprotein cholesterol (HDL-C), HDL-associated (H)-HDL, H-PL, H-FC and RLP-C. Multivariate analysis revealed that VD determined by MDCT was most closely correlated with HDL-C.
Conclusion:
Lower levels of HDL-C may be an indicator for and provide additional information regarding the severity of CAD compared with other lipidemic factors.
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