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目的探讨终末期肾血液透析前后心脏Ｘ线改变的临床意义。方法观察Ｘ线胸片肺部情况、心影形态，测量心胸比，实测心表面积和血管蒂宽度，并将临床改变和Ｘ线改变对照研究。结果血液透析后心胸比率平均缩小０．２（Ｐ＜０．０１），心表面积平均缩小３３．４（Ｐ＜０．０５），血管蒂宽度平均缩小４．９ｍｍ（Ｐ＜０．０５）。心衰组心影缩小４７例（９０％），非心衰组心影缩小７例（２７％），两组有显著性差异（Ｐ＜０．０１）。结论血液透析前后心脏的Ｘ线影像改变，对判断治疗效果及估计预后有较大的临床价值
Objective To investigate the clinical significance of cardiac X-ray changes before and after end-stage renal hemodialysis. Methods The lungs, the shape of the heart shadow, the heart-chest ratio, the measured heart surface area and the width of the vascular pedicle were observed. The clinical changes and X-ray changes were compared. Results After hemodialysis, the ratio of cardiothorax was reduced by 0.2 on average (P <0.01), the average heart surface area was reduced by 33.4 (P <0.05), and the average width of vessel pedicle was reduced by 4.9 mm (P <0.05). There were 47 patients (90%) with heart shadow reduction in heart failure group and 7 patients (27%) with heart failure reduction in non-heart failure group, with significant difference between the two groups (P <0.01). Conclusion X-ray images of heart before and after hemodialysis change have great clinical value in judging the therapeutic effect and estimating the prognosis