超声心动图诊断动脉导管未闭合并重度肺动脉高压的临床应用价值

The diagnosis of ductus arterious with severe pulmonary hypertension by echocardiography

目的探讨动脉导管未闭(PDA)合并重度肺动脉高压(PH)的超声心动图特点及诊断技巧。方法回顾性分析32例PDA合并重度PH患者的心脏二维超声改变、多普勒血流特点以及显示PDA切面。结果超声心动图诊断PDA合并重度PH符合率87.5%,误诊4例;二维超声的主要改变是肺动脉扩张、右心增大;彩色多普勒分流束及分流频谱是诊断的主要依据;左高位切面是诊断PDA合并重度PH的最易显示切面。结论 PDA合并重度PH的临床及超声特点与单纯PDA不一致,注重超声心动图检查思维与技巧有助于诊断及鉴别诊断。

Objective To study the diagnostic experience of echocardiography on the congenital patent ductus arterious（PDA） combined with pulmonary hypertension（PH）.Methods 32 cases of PDA with severe PH were retrospectively analyzed to find the changes in 2-dimensional ultrasound,Doppler flow characteristics and display PDA.Results There was a precise ratio about 87.5% on the diagnosis of the PDA with PH by echocardiography and 4 cases were misdiagnosed.The pulmonary and right heart＇s expansion was major changes of echocardiography.The most significant diagnostic characteristic was shunt of PDA and the most significant view was left high section.Conclusion The thinking and skill of echocardiography is a valuable way to correctly diagnose the PDA with PH.