Echocardiographic indices of the pumping and contractile functions of the left ventricle and the hemodynamic data obtained from left and/or right cardiac catheterization
Tomov, I.
Vutreshni Bolesti 18(3): 199-206
1979
ISSN/ISBN: 0506-2772 PMID: 475897 Document Number: 146025
A juxtaposition of the EchoC-indices for the pump and contraction function of left ventricle and the hemodynamic data obtained with right and left cardiac catheterization was carried out in 95 patients with different myocardial and valvular heart diseases. The following EchoC-indices were determined for the assessment of the left-ventricle function -- telediastolic dimension and volume of left ventricle, stroke and minute heart volume, fraction of shortening (FS), average contraction speed of circumferential fibres (CCF), fraction of expulsion (FE), left auricle dimension. A considerable correlation was found among the EchoC-indices for pump and contraction function of left ventricle and the final diastolic left ventricle pressure and the average left auricle pressure. In heart patients with a normal final diastolic pressure in left ventricle and average left auricle pressure, pulmonary capillaries (PC) resp., the average values of all functional EchoC-indices are normal. With an elevated final diastolic pressure in left ventricle, diminished values of dP/dt max and elevated mean pressure in left auricle, the pulmonary capillaries resp., the values of all EchoC-indices for the pump and contraction left ventricle function are pathological -- enlarged telediastolic dimension and left ventricle volume, enlarged dimension of left ventricle, reduced values of FS, CCF, FE, SV and MV. EchoC-functional indices properly differentiate the pathological from the normal hemodynamics of left ventricle. determined by catheterization in 86 per cent of the cases. The false positive and false negative results are obtained in 14 per cent of the cases.