Atrial septal defects.
Atrial septal defects.
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DOI：
10.1007/978-3-319-42919-9_2
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发表时间：
1961
期刊：
影响因子：
--
通讯作者：
Paul Evans
中科院分区：
文献类型：
--
作者：
Paul Evans
房间隔缺损是第二常见的先天性心脏畸形，可引起心房水平的左向右分流。二维超声心动图能较好地显示右心房、右心室和右肺动脉的包绕情况。在婴儿和儿童中，肋下切面的应用极大地促进了房间隔缺损位置和范围的描述。这特别适用于静脉窦缺损的可视化。可疑的房间隔缺损应始终通过彩色多普勒超声心动图在多个平面上证实。在有较大缺损的患者中，脉冲多普勒显示三尖瓣和肺动脉瓣的流速增加。肺动脉高压仅在少数病例中出现。
Atrial septal defects, the second most frequent congenital cardiac malformations, cause left to right shunting at atrial level. Enlargement of the right atrium, ventricle and pulmonary artery can be well displayed by 2D echocardiography. In infants and children, the description of location and extension of atrial septal defects is greatly facilitated by the application of the subcostal views. This applies specifically for the visualization of sinus venosus defects. Suspected defects in the atrial septum should always be confirmed in more than one plane by the application of colour Doppler echocardiography. In patients with large defect, pulsed wave Doppler reveals increased flow velocities across the tricuspid and pulmonary valve. Pulmonary hypertension is encountered only in a minority of cases.