For the determination of the prognosis of the acquired valvular heart disease, many diagnostic tools suchas, echocardiogram computerized RI cardiac scan, cardian catheterization and cardian angiograhy are now widely used. Among these, the cineangiography offers the most accurate and objective values in quantitation of the left ventricular performance, which is thought to be an essential prognostic factor of the valvular heart disease. Although many authors differ their opinions, increased end diastoilic volume is generally understood in two ways : The one as an idicator of compensatory mechanism for the changed hemodynamics of the heart and the other as a parameter of deteriorated left ventricular performance. Authors analyzed EDV, ESV, EF, EDP and angiogrpahic grade of regurigitation in 97 cases of the acquired valvular heart disease and results are as follows. 1. Mean EDVs are 226.2ml/$m^2$ in Al + Ml*, 167.2ml/$m^2$ in Al, 155.6ml/$m^2$ in Ml* and 98.3ml/$m^2$ in MS respeictively. 2. M an ESVs are 101.1ml/$m^2$ in Al +Ml*, 84.1ml/$m^2$ in Al, 66.5ml/$m^2$ in Ml* and 46.4ml/$m^2$ in MS respectively. 3. Mean EFs are 0.56 in Al + MI*, 0.55in Ml* and 0.54 in MS repectively. 4. There are higher correlationas between ESV and EF than between EDV and EF. 5. There no significant correlations between EDP and EDV in all disease entities except Al, in which large EDV relatively correlates with high EDP. 6. In Al, EDV, ESV, EF and angiographic grade of regurgitation show close correlations between each other. 7. In Ml with higher grade of regurgitations, ESV seems to be more sensitive indicator of left ventricular performance than EF. In Ml with lower grade of regurgitation, EF seems to be more sensitive indicator of left ventricular performance than ESV. 8. In Al + Ml* , EDV, ESV and EDP show higher values than in any other disease involving single valve alone, but there are no corrclations but there are no corrclations between ventricular volumens and grades of reguragitations. 9. In MS changes in left ventricular volumes are minimal or absent, in contrast, EFs are deteriorated as in other diseases.