A ventricular septal defect is when this lower wall—the ventricular septum— has a gap in it after development.

室间隔缺损就是位于心脏下方的室间隔，在发育之后存在一个缺口。

Now, sometimes, individuals might have an atrial septal defect, a small opening between the right and left atrium.

同时，某些人患有房间隔缺损的，即右心房与左心房之间有一个小的缺口。

The arrhythmia was caused by a minor septal defect, which means there's a very small hole between two of the heart's chambers.

你心律不齐是由轻微的心房中隔缺损引起的，也就是说在你两个心室中间有一个小洞。

Atrial septal defect, but you feel it's an emergency?

- 房间隔缺损，但您觉得这是紧急情况？

If these don't fuse though, then a gap is left between the two chambers, in other words, a ventricular septal defect, or VSD.

如果这些组织不能融合起来，就会在两个心腔之间留有一个缺口，也就是室间隔缺损，简称VSD。

Atrial septal defect is a defect within the upper two chambers of the heart.

- 房间隔缺损是心脏上部两腔内的缺损。

Other conditions that cause audible systolic murmurs include ventricular septal defect and mitral valve prolapse.

产生可闻及的收缩期杂音的其他情况包括室间隔缺损和二尖瓣脱垂。

Large atrial septal defects that cause clinically significant symptoms usually require surgical closure.

大型房间隔缺损会导致有临床意义的症状，通常需要手术封闭。

If you have a ventricular septal defect, again, your heart is going to have to start working a lot harder.

如果室间隔缺损，同样，心脏将不得不开始更加努力地工作。

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。

On the other hand when pulmonary stenosis is severe, blood in the right ventricle has to escape through the septal defect during ventricular contraction and a right-to-left shunt results.

另一方面，当肺动脉狭窄严重时，心室收缩过程中，右心室的血液不得不通过室间隔缺损分流，形成右向左分流。

Some possibilities are having the foramen ovale or ductus arteriosus stay open, or for the baby to have what's called a ventricular septal defect, where there's a shunt between the ventricles —which is actually present in about a third of cases.

也有可能的是卵圆孔和动脉导管仍然开放，或者一些婴儿有所谓的室间隔缺损，即在室间隔之间有分流，这在大概三分之一的病例中是存在的。