For those medically curious people, here is the picture Dr Benson gave us from Yale's stent placement. I'll try to explain them to the best of my knowledge, but trust that I am only a parent, not a medical professional. I just think they are soooo cool to see
So. The top picture is Yale's hear before the placement. the long wire is the heart catherater. It goes in through the major vein in the groin. (think those big tendon like veins on either side of the groin) Well, it is up and through the atrial Septum defect (ASD). This is a hole between the two upper chambers of the heart. It needs to be open to allow Yale's blood to mix. the darker blotch is the ink that they inject to get better images of what they are doing
The bottom picture you can see after the stent has been placed and opened the ink then flows through to the right side of the heart. The stent opened Yale's ASD almost 100%. The cool thing about the bottom picture is it gives you a real indication of how small the left side is compared to the right.