房间隔缺损（ASD）并室间隔缺损（VSD）

既有房间隔缺损（ASD）又有肌性室间隔缺损（VSD）。心脏的左边被剖开。虽然这种小缺损不足以导致从左到右的分流，但增大了感染性心内膜炎的危险性。

Here is a heart with both an atrial septal defect (ASD) and a muscular ventricular septal defect (VSD). The heart is opened on the left side. Such small defects do not produce significant left-to-right shunting, but they do increase the risk for infective endocarditis.