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目的:通过彩色多普勒超声心动图(简称CDFI)找出高原组和平原组肺心病病理变化的不同。方法:将肺心病患者根据海拔分高原组和平原组,采用CDFI对相关指标进行测量比较。结果:高原组肺动脉瓣a波消失、右室前壁增厚和左右肺动脉宽度出现频率显著高于平原组(P<0.01)。右室流出道增宽、室间隔增宽率高原组高于平原组(P<0.05)。平均肺动脉压也高于平原组(P<0.05)。结论:高原肺心病右心病变较平原组严重,可能与其有更重的低氧血症有关。
OBJECTIVE: To identify the pathological changes of pulmonary heart disease in plateau group and plain group by color Doppler echocardiography (CDFI). Methods: The patients with pulmonary heart disease were divided into high altitude group and plain group according to altitude, and the related indexes were measured and compared by CDFI. Results: The a wave of pulmonary valve disappeared in plateau group, and the frequency of right ventricular anterior wall thickening and left and right pulmonary artery width were significantly higher than those in plain group (P <0.01). Right ventricular outflow tract widening, ventricular septal widening rate plateau group was higher than the plain group (P <0.05). Mean pulmonary artery pressure was also higher than that of plain group (P <0.05). CONCLUSION: The right heart disease on the plateau pulmonary heart disease is more serious than the plain group and may be related to the more severe hypoxemia.