[Comparison of coronary plaque composition between patients with acute coronary syndrome and stable coronary artery disease].
OBJECTIVE
The purpose of the present study was to compare the plaque composition between patients with acute coronary syndrome (ACS) and stable coronary artery disease (SCAD) by intravascular ultrasound virtual histological analysis.


METHODS
Two hundred and ten patients were divided into ACS group (n = 131, 188 diseased vessels) and SCAD group (n = 79, 158 diseased vessels). A total of 346 de novo lesions with > 50% stenosis in native coronary arteries with diameters > 2.5 mm were studied with intravascular ultrasonography. Geometric and compositional data were obtained using intravascular ultrasound virtual histology software.


RESULTS
There were no significant differences in overall lesions for fibrous (51.2% +/- 12.5% vs. 52.6% +/- 9.6%), fibrolipidic (11.3% +/- 10.6% vs. 12.9% +/- 9.4%), calcium (15.1% +/- 8.9% vs. 20.5% +/- 12.5%) or necrotic core (23.1% +/- 9.8% vs. 20.4% +/- 6.8%, all P > 0.05) components between ACS and SCAD patients. Culprit lesions for fibrous (49.1% +/- 11.2% vs. 50.3% +/- 9.7%), fibrolipidic (10.2% +/- 9.5% vs. 12.7% +/- 9.5%), calcium (15.4% +/- 8.9% vs. 17.4% +/- 24.8%), or necrotic core (24.0% +/- 11.5% vs. 19.7% +/- 5.3%, all P > 0.05) components were also similar between ACS and SCAD patients. High density lipoprotein-cholesterol (HDL) levels > 1.04 mmol/L was associated with more fibrolipidic (15.6% +/- 9.6% vs. 7.4% +/- 5.9%) and less necrotic core (19.4% +/- 8.6% vs. 28.6% +/- 11.2%, all P < 0.05 vs. patients with HDL < or = 1.04 mmol/L) components in ACS patients.


CONCLUSIONS
Coronary plaque composition was similar between ACS and SCAD patients.
Wang
Tian-song
TS
Department of Cardiology, Shanghai East Hospital Affiliated to Tongji University, Shanghai 200120, China.
Li
Xin-ming
XM
Zhuang
Shao-wei
SW
Tian
Bei
B
Jin
Can
C
Wang
Sheng
S
Li
Bin
B
Huang
Cong-xin
CX
D054058:Acute Coronary Syndrome / Q000000981:diagnostic imaging* / Q000473:pathology; D000368:Aged; D000369:Aged, 80 and over; D003324:Coronary Artery Disease / Q000000981:diagnostic imaging* / Q000473:pathology; D005260:Female; D006801:Humans; D008297:Male; D008875:Middle Aged; D018084:Ultrasonography, Interventional