Stevenson J G, Kawabori I, Guntheroth W G
Circulation. 1979 Aug;60(2):355-9. doi: 10.1161/01.cir.60.2.355.
Twenty-five patients with proven patent ductus arteriosus were examined by pulsed Doppler echocardiography (PDE) before invasive assessment. Ten patients had normal pulmonary artery pressures, and by PDE, pandiastolic ductal flow. Fifteen patients had elevation of mean pulmonary artery pressure, and by PDE, all had abbreviations of diastolic ductal flow. PDE correctly distinguished between patients with normal pressure and those with evidence of pulmonary hypertension; the ECG did not allow such differentiation. Detection by PDE of pulmonary hypertension complicating patent ductus arteriosus appears to be clinically useful.
对25例已证实动脉导管未闭的患者在进行有创评估前采用脉冲多普勒超声心动图（PDE）进行检查。10例患者肺动脉压力正常，通过PDE检查显示为全舒张期导管血流。15例患者平均肺动脉压升高，通过PDE检查显示所有患者舒张期导管血流均有缩短。PDE能够正确区分压力正常的患者和有肺动脉高压证据的患者；而心电图无法进行这种区分。通过PDE检测动脉导管未闭合并的肺动脉高压在临床上似乎是有用的。
