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本文用超声心动图对21例DCM和20例正常对照组的心功能进行观察分析。发现DCM者EF明显低于对照组,左室收缩末期容量指数(ESVI)高于对照组;EF随后负荷的增加而下降,两者呈负相关(γ=97.34-0.3x,γ=-0.81,p<0.01);DCM的左室壁压力(Ges)与ESVI间的相关线斜率也较对照组平缓。这表明DCM患者的心功能异常,除因收缩力下降外,后负荷也是一重要因素。本文还指出,在观察收缩
In this paper, 21 cases of DCM and 20 cases of normal control group were observed and analyzed by echocardiography. The EF of DCM patients was significantly lower than that of the control group, and the end-systolic volume index (ESVI) of DCM was higher than that of the control group. EF was negatively correlated with the increase of the load (γ = 97.34-0.3x, γ = -0.81, p <0.01). The slope of the correlation line between DCM and GES was also lower than that of the control group. This indicates that DCM patients with abnormal cardiac function, in addition to decreased contractility, the post-load is also an important factor. This article also points out that contractions are observed