当前位置： SCI文献检索 > Journal of Cardiology期刊下所有文献 > Differences in intravascular ultrasound findings in culprit lesions in infarct-related arteries between ST segment elevation myocardial infarction and non-ST segment elevation myocardial infarction.

Differences in intravascular ultrasound findings in culprit lesions in infarct-related arteries between ST segment elevation myocardial infarction and non-ST segment elevation myocardial infarction.

Abstract：

BACKGROUND:Previous studies have reported diffuse destabilization of atherosclerotic plaques in acute myocardial infarction (AMI). We used intravascular ultrasound (IVUS) to assess coronary culprit lesions in ST segment elevation MI (STEMI) vs. in non-ST segment elevation MI (NSTEMI). METHODS:Patient population comprised 125 STEMI and 185 NSTEMI patients. IVUS findings included ruptured plaque (a cavity that communicated with the lumen with an overlying residual fibrous cap fragment), lipid-pool like image (a pooling of hypoechoic or echolucent material covered with a hyperechoic layer), thrombus (discrete intraluminal filling defects), and plaque prolapse (tissue extrusion through the stent strut at post-stenting). RESULTS:Culprit lesions had larger external elastic membrane area (13.5+/-4.9mm(2) vs. 11.9+/-4.3mm(2), p=0.002), larger plaque plus media area (10.8+/-4.4mm(2) vs. 9.1+/-4.1mm(2), p=0.001), and greater plaque burden (78.7+/-10.1% vs. 74.8+/-12.0%, p=0.002), and smaller culprit lesion site calcium arc (96+/-90 degrees vs. 153+/-114 degrees , p=0.002) in patients with STEMI than in those with NSTEMI. Culprit lesion plaque ruptures, lipid-pool like images, and thrombus were observed more frequently in patients with STEMI than in those with NSTEMI (46% vs. 29%, p=0.002; 39% vs. 25%, p=0.010; and 34% vs. 21%, p=0.006, respectively). Culprit lesions were more predominantly hypoechoic in patients with STEMI than in those with NSTEMI (62% vs. 40%, p<0.001). There was a trend that post-stenting plaque prolapse was observed more frequently in patients with STEMI than in those with NSTEMI (33% vs. 24%, p=0.081). CONCLUSIONS:Culprit lesions in STEMI have more markers of plaque instability (more plaque rupture and thrombus, and larger plaque mass) compared with lesions in NSTEMI.

journal_name

J Cardiol

journal_title

Journal of cardiology

authors

Hong YJ,Jeong MH,Choi YH,Ma EH,Ko JS,Lee MG,Park KH,Sim DS,Yoon NS,Youn HJ,Kim KH,Park HW,Kim JH,Ahn Y,Cho JG,Park JC,Kang JC

doi

10.1016/j.jjcc.2010.01.010

subject

Has Abstract

pub_date

2010-07-01 00:00:00

pages

15-22

issue

eissn

0914-5087

issn

1876-4738

pii

S0914-5087(10)00041-9

journal_volume

pub_type

杂志文章

在线工具

Differences in intravascular ultrasound findings in culprit lesions in infarct-related arteries between ST segment elevation myocardial infarction and non-ST segment elevation myocardial infarction.