Here is a website that explains in easy to understand terms various fetal heart conditions. I think you might find this helpful. I worked at this hospital a few years back and they know their stuff.
http://www.schneiderchildrenshospital.org/sch_cardio_abnor.html
Once the OB tells you exactly what has been found, then it would be easier to answer youir question.
If you have some other questions, let me know.
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