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。

Fortunately, this complication, called the Eisenmenger syndrome, usually develops over many years and occurs only in a small percentage of people with large atrial septal defects.

幸运的是，该并发症，被称为艾森曼格综合征，通常需要很多年，而且仅在少部分有大房间隔缺损的人群中出现。

If pressure increases to a point where the right side's more than the left side, then the direction of blood flow through the VSD can switch from being left-to-right to right-to-left, a condition known as Eisenmenger syndrome.

如果压力一直上升到心脏右侧比左侧还高，那么VSD的血流方向就会从左向右切换到右向左，这种疾病被称为艾森曼格综合症。