SIGNIFICANCE OF DIASTOLIC DYSFUNCITON IN 2 …
SIGNIFICANCE OF DIASTOLIC DYSFUNCITON IN 2-DIMENSIONAL ECHOCARDIOGRAPHY IN THE ANGINA WITH NORMAL LEFT VENTRICULAR (LV) REGIONAL WALL MOTION AND NORMAL LV SYSTOLIC FUNCTION
S.H. Her, S.W. Jin, D.B. Kim, H.D. Kim, H.J. Yoon, J.M. Lee, P.J. Kim, H.O. Jung,
W.S Chung, K.B. Seung
The Catholic University, Seoul, Korea
Objectives and Background: Left ventricular (LV) diastolic dysfunction (DDF) in 2-dimensional echocardiography (ECHO) may be encountered in chronic stable angina (SA) and unstable angina (UA). The goals of this study were to assess the frequency and the value of LV DDF in the SA and UA treated by percutaneous coronary intervention (PCI).
Methods and Results: We studied 283 patients of normal group by the angiography, 308 of SA and 192 of UA who had no history or electrocardiographic evidence of myocardial infarction who subsequently treated by PCI. We excluded the presence of resting wall motion abnormalities and below 50% of LV ejection fraction in ECHO. Each patient underwent pulsed-wave Doppler examination of mitral inflow and of pulmonary venous inflow and Doppler tissue imaging of the mitral annulus. Diastolic function was categorized according to the progression of DDF: normal; mild; moderate and severe. We divided 2 groups in normal to mild DDF (Gr I) and moderate to severe DDF (Gr II) by Doppler criteria. Gr II group was detected in 35 patients (12.5%) of normal group, 41 (13.3%) of SA and 33 (17.1%) of UA. There were significant difference for LV DDF between the normal group and UA (12.5% vs 17.1%, p=0.021, OR; 1.453), but no significant difference between the normal group and SA (12.5% vs 13.3%, p=0.475, OR; 1.075).
Conclusions: Gr II group in UA with normal LV systolic function and normal LV regional wall motion is an independent predictor and a higher prevalence compared with its in the normal group
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