概述

肺动脉瓣疾病指位于您心脏右下心腔(右心室)和将血液输送到肺部的动脉(肺动脉)之间的肺动脉瓣无法正常工作的疾病。这种疾病会中断心脏到肺部的血液流动。

肺动脉瓣像一扇从心脏右心室到肺部的单向门。血液通过肺动脉瓣从右心室流向肺动脉,然后进入肺部,在肺中吸收氧气输送到全身。

肺动脉瓣疾病的类型包括:

  • 肺动脉瓣狭窄肺动脉瓣狭窄会减少从心脏到肺动脉和肺部的血液流动。
  • 肺动脉瓣返流。肺动脉瓣的瓣膜(小叶)关闭不严,导致血液向后漏入右心室。
  • 肺动脉闭锁。该疾病为先天性。未形成肺动脉瓣。相反,一块实心组织块阻断了心脏右侧的血液流动,因此血液无法进入肺部吸收氧气。

许多类型的肺动脉瓣疾病由出生时即患有的心脏病(先天性心脏缺陷)引起。治疗方法取决于肺动脉瓣疾病的类型和严重程度。

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Jan. 13, 2022
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