When this changes from a left-to-right shunt to a right-to left shunt, it's referred to as an Eisenmenger's syndrome.

当原先的从左向右分流变为从右向左分流时，我们称之为艾森曼格综合征。

But simple procedures such as squatting and the knee chest position which increase systemic vascular resistance and therefore decrease right to left shunting , can help to temporarily relieve symptoms.

但是简单的方法，例如蹲踞和膝胸位的姿势可增加体循环血管的阻力，因此减少右向左分流，可以暂时缓解症状。