Hi Littlemommabear -
I know something like this has to be really frightening, but when you think about which one is riskier, doing nothing and hoping for the best and having your PFO closed, you know which one gives you loads better odds of having many, many years to watch your baby grow up.
If you're wondering how the procedure will go, as I understand it (and someone please jump in if I'm wrong), it's much like any other heart catheter procedure, and the risks are very low.