Shannon, I prayed for your son, I know God hears our prayers, and He will be there for you, and your son.
It is good that this was found now, and he can be treated. My brother in-law has one of those defibillators in his chest, and it works really good.
I'm not sure exactly how long he's had it, probably around 10 years.
The Lord will see you and your family through this.
Be anxious for nothing, but in everything by prayer and supplication, with thanksgiving, let your requests be made known to God;
and the peace, which surpasses all understanding, will guard your hearts and minds through Christ Jesus. Philippians 4:6-7