Carrasco Guerra H, Inglessis V G, Simón Barboza M J, Fuenmayor P A, González G
Arch Inst Cardiol Mex. 1976 Sep-Oct;46(5):562-70.
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.
对20例不同程度慢性二尖瓣反流患者进行了dp/dt max、Vec和Vmax测定。将这些结果中的每一项与相应的射血分数进行相关性分析。只有dp/dt max显示出充分的相关性且个体结果的离散度较小，表明其真正依赖于左心室的内在收缩状态。Vec和Vmax测定也反映了收缩性变化，但其变异性和临床应用难度大，不建议在临床环境中常规使用。我们未能证明瓣膜病变对所测收缩性指标结果有任何影响。
