title: [Value of the indices of myocardial contraction rate in patients with chronic mitral insufficiency].
abstract: Determinations of dp/dt max, Vec and Vmax were made in 20 patients with chronic mitral regurgitation of several degrees. Each of these results was correlated with the corresponding ejection fraction. Only dp/dt max showed adequated correlation and few scattering of individual results, demonstrating its true dependence on the intrinsec contractile state of the left ventricule. Vec. and Vmax. determinations also reflected contractility changes, but their variability and difficult clinical applicability does not allow to recommend its routine utilization in a clinical setting. We could not demonstrate any influence of the valvular lesion on the results of the measured contractility indicators.
mesh_terms: D000293:Adolescent; D000328:Adult; D002306:Cardiac Volume; D002496:Central Venous Pressure; D002648:Child; D002908:Chronic Disease; D005260:Female; D006801:Humans; D008297:Male; D008875:Middle Aged; D008944:Mitral Valve Insufficiency / Q000503:physiopathology*; D009200:Myocardial Contraction
vernacular_title: Utilidad de los indices de velocidad de la contraccion miocárdica en pacientes con insuficiencia mitral crónica