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最常见的原因是主动脉瓣或肺动脉瓣反流。
The most common causes are aortic or pulmonic valve regurgitation.
结论左肺动脉狭窄、肺动脉瓣反流和右心室扩大是TO F术后常见的并发症。
Conclusion Left pulmonary stenosis, pulmonary regurgitation and right ventricular enlargement are common complications after surgery for TOF.
方法：利用彩色多普勒超声心动图检测68例先天性房间隔缺损患儿与82例正常新生儿心脏各腔室的大小、肺动脉内压力、三尖瓣反流等。
Methods:Investigated all chambers of the heart ; pulmonary artery pressure and tricuspid regurgitation in 68 congenital antrum septal defect and 82 normal neonates by colour Doppler echocardiography.
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