[Comparison of the diastolic mitral gradient by the methods of Doppler echocardiography and heart catheterization in patients with mitral valve defect].
The aim of the study was comparison of mitral diastolic gradient determination by noninvasive Doppler echocardiography and simultaneously done cardiac catheterization. The examination was performed in 34 patients with mitral valve disease, divided into 3 groups: I--isolated mitral stenosis--9 patients, II--mitral stenosis and mild or moderate mitral regurgitation (+1, +2 according to Sellers)--15 patients, III--mitral stenosis and severe mitral regurgitation (+3, +4 according to Sellers)--10 patients. In group I and II good correlation between results obtained with both methods were observed. Nevertheless, in the group III in patients with severe mitral regurgitation significantly greater mitral valve gradient was found in Doppler examination as compared to the cardiac catheterization (p less than 0.05).