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Early Effects of Intensive Lipid-Lowering Treatment on Plaque Characteristics Assessed by Virtual Histology Intravascular Ultrasound

 Jung-Hee Lee  ;  Dong-Ho Shin  ;  Byeong-Keuk Kim  ;  Young-Guk Ko  ;  Donghoon Choi  ;  Yangsoo Jang  ;  Myeong-Ki Hong 
 YONSEI MEDICAL JOURNAL, Vol.57(5) : 1087-1094, 2016 
Journal Title
Issue Date
Aged ; Cholesterol, LDL/blood* ; Cholesterol, LDL/drug effects ; Coronary Artery Disease/diagnostic imaging* ; Drug Administration Schedule ; Ezetimibe, Simvastatin Drug Combination/administration & dosage* ; Female ; Humans ; Hydroxymethylglutaryl-CoA Reductase Inhibitors/administration & dosage* ; Male ; Middle Aged ; Plaque, Atherosclerotic/diagnostic imaging* ; Pravastatin/administration & dosage ; Prospective Studies ; Time Factors ; Treatment Outcome ; Ultrasonography, Interventional
Coronary artery disease ; anticholesteremic agents ; cholesterol ; coronary vessels ; ultrasonography
PURPOSE: The effects of short-term intensive lipid-lowering treatment on coronary plaque composition have not yet been sufficiently evaluated. We investigated the influence of short-term intensive lipid-lowering treatment on quantitative and qualitative changes in plaque components of non-culprit lesions in patients with acute coronary syndrome. MATERIALS AND METHODS: This was a prospective, randomized, open-label, single-center trial. Seventy patients who underwent both baseline and three-month follow-up virtual histology intravascular ultrasound were randomly assigned to either an intensive lipid-lowering treatment group (ezetimibe/simvastatin 10/40 mg, n=34) or a control statin treatment group (pravastatin 20 mg, n=36). Using virtual histology intravascular ultrasound, plaque was characterized as fibrous, fibro-fatty, dense calcium, or necrotic core. Changes in plaque components during the three-month lipid-lowering treatment were compared between the two groups. RESULTS: Compared with the control statin treatment group, there was a significant reduction in low-density lipoprotein cholesterol in the intensive lipid-lowering treatment group (-20.4±17.1 mg/dL vs. -36.8±17.4 mg/dL, respectively; p<0.001). There were no statistically significant differences in baseline, three-month follow-up, or serial changes of gray-scale intravascular ultrasound parameters between the two groups. The absolute volume of fibro-fatty plaque was significantly reduced in the intensive lipid-lowering treatment group compared with the control group (-1.5±3.4 mm³ vs. 0.8±4.7 mm³, respectively; p=0.024). A linear correlation was found between changes in low-density lipoprotein cholesterol levels and changes in the absolute volumes of fibro-fatty plaque (p<0.001, R²=0.209). CONCLUSION: Modification of coronary plaque may be attainable after only three months of intensive lipid-lowering treatment.
Appears in Collections:
1. College of Medicine (의과대학) > Dept. of Internal Medicine (내과학교실) > 1. Journal Papers
Yonsei Authors
Ko, Young Guk(고영국) ORCID logo https://orcid.org/0000-0001-7748-5788
Kim, Byeong Keuk(김병극) ORCID logo https://orcid.org/0000-0003-2493-066X
Shin, Dong Ho(신동호) ORCID logo https://orcid.org/0000-0002-7874-5542
Jang, Yang Soo(장양수) ORCID logo https://orcid.org/0000-0002-2169-3112
Choi, Dong Hoon(최동훈) ORCID logo https://orcid.org/0000-0002-2009-9760
Hong, Myeong Ki(홍명기) ORCID logo https://orcid.org/0000-0002-2090-2031
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