Dear all. I am 12 weeks pregnant. I had an screen and it turned out that my marker Ductus venosus is not the best… all other markers are fine, and I have low risk to Down, Edward, Patau. I saw that it can cause hearth diseases. In another thread in this site I saw that in many cases the problem solved itself by the 20th week without any consequences. It is very reassuring, bit I would like to hear more other stories... your story, the outcomes... let's talk about it!