EN
Abnormalities of diastolic filling can lead to diastolic dysfunction and heart failure. Echocardiography is a valuable tool for the evaluation of diastolic cardiac function. A high correlation between measurements of diastolic mitral inflow parameters analyzed with Doppler echocardiography and through invasive methods makes the former valuable. The aim of this study was to compare values obtained from healthy dogs to those obtained from subclinically and clinically ill dogs with mitral valve regurgitation and to determine the value of these parameters for use in diastolic myocardial dysfunction and/or diastolic heart failure diagnosis. The study was performed on 248 healthy and cardiologically ill dogs of different breeds and ages. Eleven parameters were analyzed: E wave, E-AT, E-DT, E time, A wave, A-AT, A-DT, A time, E+A time, E/A ratio, IVRT. Significant differences were found in E wave, A wave, E/A ratio, A-DT and E+A time among healthy dogs and dogs with mitral valve regurgitation. This study confirmed the value of the noninvasive echocardiographic assessment of the diastolic function in dogs. The most useful parameters include E wave, A wave, E-DT, E/A ratio and IVRT.