Heart defects

Has anyone here experienced a heart defect with any of their children?  I'm 31 and having my first child and at my ultrasound Thursday they discovered my baby has a hole in it's heart. This is not something that will fix itself.  Our baby will have to have surgery as an infant to correct the issue. I'm extremely scared and am unsure how to deal with this right now.  Any advice from anyone who has gone through this?