Pulmonary heart disease group and COPD group, the control group of the right lower pulmonary diameter/pulmonary artery pressure value comparison, the difference was statistically significant.
肺心病组与COPD组、对照组组间的右下肺动脉直径/肺动脉压力值比较，差异均有统计学意义。
Methods 68 patients suffering from senile pulmonary heart disease and heart failure were divided into observe group and control group randomly.
方法将68例老年肺心病心衰患者随机分为观察组和对照组。
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