风湿性二尖瓣狭窄肺动脉压力的改变

The pulmonary pressure alteration with rheumatic mitral stenosis

目的 :用多普勒超声心动图提供的血流动力学信息 ,无创性地评价二尖瓣狭窄的肺动脉压力。方法 :2 0例风湿性二尖瓣狭窄患者 ,经多普勒超声心动图检查 ,测量了二尖瓣口压差、瓣口面积及肺动脉血流频谱参数。结果 :本组资料二尖瓣狭窄患者为轻～中度 ,肺动脉血流频谱表现为射血前期 (PEP)延长 ,射血时间 (ET)及加速时间 (AT)缩短 ,PEP/ ET及 PEP/ AT增大 ,为肺动脉压力明显增高。结论 :风心病轻～中度的二尖瓣狭窄可伴有明显的肺动脉压力增高 ,对于风心病患者 。

Objective:We noninvasive assessed pulmonary pressure of mitral stenosis(MS),used doppler echocardiography.Methods:The 20 patients with rheumatic mitral stenosis receipted examination of doppler echocardiography.We measure transmitral pressure gradient,mitral valve orifice area and pulmonary flow pattern.Results:It showed that stenosis degree was mild and middle,pulmonary flow pattern was prior ejection period(PEP) longer,ejection time(ET) shorten,accelerative time(AT) shorten.PEP/AT and PEP/ET increase.It revealed that remarkable high pulmonary pressure exist.Conclusion:The pulmonary pressure with MS apparent increasion.We can use pulmonary flow pattern to assess pulmonary pressure.