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5.Doppler Echocardiographic Assessment of Diastolic Pressure Gradient and Mitral Valve Area in Mitral Valvular Disease.

Korean Circulation Journal 1986;16(2):225-231

The pressure gradient across the mitral valve and atrioventricular pressure half time were measured by Doppler echocardiography during cardiac catheterization in 15 patients with mitral stenosis. Among these 15 patients with mitral stenosis, 6 patients were combined with aortic insufficiency and 4 patients with mitral insufficiency. Mitral valve area(MVAe) was measured by Doppler echocardiographic pressure half time and mitral valve area(MVAc) was measured by cardiac catheterization data(modified Gorlin's formula). Mean diastolic pressure gradient(MDPG) and peak diastolic pressure gradient(MDPG) measured by Doppler echocaridgraphy were compared with pulmonary wedge pressure. Obtained results were as follows; 1) Thewe was significant correlation between MVAe and MVAc regardless of mitral regurgitation or aortic regurgitation(r=0.09). 2) There was significant correlation between mean diastolic pressure geadient(MDPG) and mean pulmonary wedge pressure(r=0.69). But MDPG were lower than mean pulmonary wedge pressure in patients with mitral regurgitation or aortic regurgitation, which may be due to left ventricular volume overload. 3) The correction coefficiency between peak diastolic pressure gradient(PDPG) measured by Doppler echocardiography and mean pulmonary wedge pressure(r=0.59) was slightly lower than the correlation coefficiency between mean diastolic pressure gradient(MDPG) and mean pulmonary wedge pressure(r=0.69).
Aortic Valve Insufficiency ; Blood Pressure* ; Cardiac Catheterization ; Cardiac Catheters ; Echocardiography* ; Echocardiography, Doppler ; Humans ; Mitral Valve Insufficiency ; Mitral Valve Stenosis ; Mitral Valve* ; Pulmonary Wedge Pressure

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5.Doppler Echocardiographic Assessment of Diastolic Pressure Gradient and Mitral Valve Area in Mitral Valvular Disease.

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