4d imaging &echo during week 32 of pregnancy showed normal heart function;can a 4 month baby still have chance to be diagnosed w atrial septal defect?

ASD vs PFO: At 32 weeks gestation (and through pregnancy) there is a "hole" connecting the upper two heart chambers.So this "hole on the us would be considered normal. That "hole" is called a foramen ovale. It can persist after birth and be a patent foramen ovale (pfo). It is very similar to an atrial septal defect (asd), usually just a very slight difference in location on the septal wall.Not much difference.

Yes: An atrial septal defect (ASD) is almost never diagnosed prenatally, since an atrial opening (pfo) is normal at that time. Most of the time i diagnose an ASD it is after the baby has gone home from the hospital. A murmur is often not heard initially, developing only later. Fortunately early diagnosis is not critical, since intervention is usually not needed for several years.