G.J.
No personal experience with this; however, very good friends of ours had a daughter with some heart issues as a newborn and happy to say she is a super cute and a very healthy normal little 4 year old today! (she had holes in her heart; no idea what the medical terminology for that is- so I don't know if it's the same thing your baby has or not; she also had surgeries). It truly is amazing what those docs. can do today. and keep in mind, those little babies are stronger than we think they are.
I know it's not always how you imagine it for your 1st baby (or any baby for that matter); but keep each other strong, you'll make it through this just fine. good luck to all of you and God bless.