Hi,
I am on the same boat as you. When my son was 1st born the Dr. heard a slight murmur & had the cardiologist check him out before he went home. It was there so she said they usually grow out of it & she would like to see him @ 3ths. Three mths old & it's still there so she wanted another follow up which we just went to yesterday.
It turns out he still has it. She did a eco & a 2D sonogram. You can see a very small gap on the wall which divides the right from the left. So you have extra blood going from one side to the other. This is called a PFO. The Dr told me that there is nothing life threatning about this , people are sometimes diagnosed with this by the doctor & don't get refered to the cardiologist, & can go about life normal.
There still is a chnace this can close but for me not to worry . She said take it from me as a mom do not worry.
Even though she said that I will still worry but not as much.
She wants to see him back in 1yr to check him over.
My 1st son at 3 mths the Dr. heard a murmur but a few months later it went away. My ex husbabnd has a murmur so we thought our son's will stay. But it didn't & we were glad.
But from I have been told if the child does have one he can still have a normal life...but might have the need to be pre-medicated if having surgical procedure & having work done at the dentist.
Good luck with your little one. If you would like a 2nd opinion & need a cardiologist let me know...my Dr is very sweet & thorough & has offices in Hollywood , Weston & shares a space on Plantation.
L.