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主动脉骑跨

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主动脉骑跨
正常心脏的示意图和主动脉骑跨心脏的示意图
类型先天性心臟病aortic malformation[*]
分类和外部资源
醫學專科心外科
ICD-10Q25.4
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主动脉骑跨(overriding aorta)或骑跨主动脉,是一种先天性心脏缺陷,其中主动脉直接位于室间隔缺损上方,而不是位于左心室上方。主动脉从右心室接收一些血液,导致富含氧的血液(来自左心室)和含氧低的血液(来自右心室)混合,因而导致输送到组织气含量减少。

它是由典型的法洛四联症引出的四个发现之一。其他三个由法洛四联症发现的症状是右心室流出道狭窄(最常见的是肺动脉狭窄)、右心室肥大 (RVH) 和室间隔缺损 (VSD)。

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主动脉骑跨
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