肺动脉高压是小儿先天性心脏病的重要并发症。系列观察病儿肺动脉压力的改变,对选择手术时机和评定治疗效果都有重要意义,因此也是小儿内、外科医师共同关心的问题。以往主要依靠反复作侵入性的心导管检查来测定肺动脉压,病儿难以接受。1974年Nanda等首先采用超声心动图探查肺动脉瓣曲线评价肺动脉高压,具有非侵入性、安全简便和可重复等优点。十多年以 Pulmonary hypertension is an important complication of congenital heart disease in children. The observation of changes in pulmonary artery pressure in a series of patients is of great importance in selecting the timing of the operation and in assessing the therapeutic effect. Therefore, it is also a common concern of children and surgeons. In the past mainly rely on repeated invasive cardiac catheterization to determine pulmonary artery pressure, sick children unacceptable. In 1974 Nanda et al first used echocardiography to investigate the pulmonary valve curve pulmonary hypertension, noninvasive, safe and easy and repeatable and so on. More than ten years