Determinación de los valores normales del índice de Tei (índice de performance miocárdico) y otros parámetros ecocardiográficos doppler de la función ventricular izquierda en caninos sanos

congestive heart failure is related to contraction and relaxation ventricle abnormalities. recent studies had shown that in the majority of the patients with congestive cardiac failure coexist alteration of systolic and diastolic function and in many cases the systolic function is normal and the cardiac failure is supported only by the diastolic dysfunction. a combined myocardial performance index (isovolumetric contraction time plus isovolumetric relaxation time divided by ejection time, "tei-index") has been described which may be more effective for analysis of global cardiac dysfunction than systolic and diastolic measures alone. supported by these previous information, the authors determined the normal value of the left ventricular tei index in healthy dogs at bogota (at an altitude of 2600 mosl) in order to evaluate the systodiatolic function. a mean value of 0,33 with a standard deviation of 0,10 was obtained. no correlation exists with cardiac rate), body weight neither with ejection fraction (p> 0,05).