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

Clinical Application Value of Echocardiography in the Diagnosis of Patent and Severe Pulmonary Hypertension

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42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61.5%,误诊16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 investigate the patent ductus arteriosus（PDA） with severe pulmonary hypertension（PH） of echocardiographic characteristics and diagnostic skills. Methods To analyze retrospectively42 patients of PDA and PH heart changes in two-dimensional ultrasound,doppler flow characteristic and display PDA aspect. Results It showed that echocardiography in the diagnosis of PDA with PH coincidence rate was61.5%, there were 16 cases of misdiagnosis. Two-dimensional ultrasound main changes had pulmonary artery expansion and right heart enlarged.Color doppler split beam and shunt spectrum were the main diagnoses basis. Left high aspect is the most easy to display diagnostic PDA with PH aspects. Conclusion Clinical and ultrasonic characteristics of PDA with PH was different from single PDA, it is very helpful to pay attention to echocardiography thinking and skills for the diagnosis and differential diagnosis.