Congenital heart defects

My son was born in July with a heart murmur 3/6 and I was told it was POA. I was given the impression that it was innocent and would most likely correct itself. EKG was normal in the hospital. My son did have low blood sugar on day 2 and he spent 24 hours in the ICN until his was reading passed 3 times. I'm not diabetic and I didn't acquire pregnancy diabeties. He was born a few weeks early but a good weight 7'13. He did start out having some difficulty swallowing and had a poor latch. I was refered to a pediatric cardiologist on his first well visit.

Fast forwarding to now he had another EKG that stated it was normal for his first cardio appointment

vent. rate 124 bpm
PR interval 106 ms
QRS duration 76 ms
QT/Qtc 286/410 ms
P-R-T axes 42 60 45

His murmur is very slight now. He is gaining great 18.8 last check. His blood pressure was lower in his legs and the cardio is concerned about a valve and he is doing a sedated echo at the end of Jan.

I'm going crazy here trying to figure out his EKG results and I don't see how the numbers are alarming. The waiting is stressing me out! It is so hard to find information but this is sounding more like a COA then a POA which of course is stressing me out even more. I read the life expectnacy of COA and went into tears.

Is anyone going through anything similar that turned out to be innocent?

[Kara07]

I just wanted to correct POA is should read

PDA ~  patent ductus arteriosus

COA ~ Coarctation of the aorta