Evaluation of myocardial strain and aortic elasticity in patients with bicuspid aortic valve

被引：0
作者：
Yang Li
You-bin Deng
Xiao-jun Bi
Ya-ni Liu
Jun Zhang
Li Li
Bin Chen
机构：
[1] Huazhong University of Science and Technology,Department of Medical Ultrasound, Tongji Hospital, Tongji Medical College
[2] the First Affiliated Hospital of Bengbu Medical College,Department of Medical Ultrasound
[3] the First Affiliated Hospital of Wenzhou Medical University,Department of Medical Ultrasound
来源：
Journal of Huazhong University of Science and Technology [Medical Sciences] | 2016年 / 36卷
关键词：
aorta; elasticity; speckle tracking imaging; bicuspid aortic valve;
D O I：
暂无
中图分类号：
学科分类号：
摘要：
This study evaluated the myocardial strain and aortic elasticity in patients with bicuspid aortic valve (BAV) and then investigated the relation between them. Thirty-nine patients (30 males; mean age 44±19 years; range 6 to 75 years) with BAV were recruited as BAV group, and 29 age- and sex-matched healthy controls (21 males; mean age 42±11 years; range 20 to 71 years) served as control group. Aortic strain, distensibility and stiffness index were derived using M-mode echocardiography. Left ventricular global myocardial strain was acquired with speckle-tracking echocardiography. Correlation between aortic elasticity and myocardial strain was also analyzed. The results showed that aortic stiffness was higher (17.5±14.0 vs. 5.3±2.7, P<0.001), and aortic strain (4.9±4.7 vs. 11.0±4.1, P<0.001) and distensibility (1.8±2.1 vs. 3.7±1.6, P<0.001) were lower significantly in BAV group than in control group. Global circumferential strain (–19.1±4.2 vs.–22.5±3.7, P<0.001), radial stain (29.8±14.9 vs. 38.0±8.8, P<0.001) and longitudinal stain (–18.4±3.4 vs.–20.8±3.5, P<0.001) were significantly lower in BAV group than in control group. There was weak association between aortic elasticity and myocardial strain. These findings indicated BAV patients manifest reduced myocardial strain which had weak relationship with aortic elastic lesion.
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页码：747 / 751
页数：4
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