@monicakm
So sorry you are going through this! (And glad that you're keeping us updated) Try not to worry - Cardiologists are miracle workers nowadays.
SIL had a heart attack at age 40 and is now in her 70s and going strong. My dad had many heart issues in his lifetime including stents and a quintuple bypass. Each procedure gave him a new lease on life. He lived until his mid 80s and would have gone on longer if not for losing my mom and then his house (Hurricane Katrina) in the same year.
Sending prayers that this is just a bump in the road for you!
"Breathe in, breathe out, move on." Jimmy Buffett