KMID : 0390620000080010014
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Journal of Cardiovascular Ultrasound 2000 Volume.8 No. 1 p.14 ~ p.23
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Evaluation of Left Ventricle Diastolic Function by Color M-Mode Doppler Echocardiography in Coronary Artery Disease
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Jeon Hui-Kyung
Youn Ho-Joong Kim Hee-Yeol Park Ji-Won Rhim Hyou-young Park Hun-Jun Chae Jang-Seong Kim Jae-Hyung Choi Kyu-Bo Hong Soon-Jo
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Abstract
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Purpose£ºThe aims of this study were to evaluate the usefulness of the propagation velocity (Vp) measured by transthoracic color M-mode Doppler in patients with coronary artery disease and compare Vp with conventional diastolic function index using transmitral and pulmonary vein flow.
Methods£ºStudy subjects were classified into two groups according to the presence of coronary artery disease (CAD)£º44 subjects (M£ºF£½22£º22, mean age 63¡¾12 yrs) with CAD (AMI£»n £½13 , unstable angina£»n£½5, stable angina£»n£½26)£»31 normal subjects (M£ºF£½13£º18, mean age 43¡¾15 yrs). Vp of early flow into left ventricular cavity measured by color M-mode Doppler was proposed as an index of left ventricular diastolic function. Vp was compared with conventional diastolic function index.
Results£º1.Vp in CAD patients (32.8¡¾9.1 cm/sec) was lower than control (63.6¡¾14.1 cm/sec) (p>0.01). Among CAD patients, Vp in CAD patients (30.1¡¾8.6 cm/sec) with left ventricular hypertrophy (LVH) was lower than Vp in CAD patients without LVH (35.9¡¾8.9 cm/sec) (p>0.01). 2.Vp was correlated with left ventricular ejection fraction (r£½0.602, p>0.01), with D wave of pulmonary vein flow (r£½0.540, p<0.01) and with E/A velocity ratio of mitral inflow (r£½0.517, p>0.01) and negatively correlated with left ventricular mass index (r£½-0.576, p>0.01).
Conclusion£ºThe propagation velocity measured by color M-mode Doppler is a useful index for evaluation of diastolic function of left ventricle in the patients with coronary artery disease.
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KEYWORD
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Diastolic function, Color M-mode Doppler propagation velocity (Vp), Coronary
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