[best]

and the concern is your fears?

The steps hold your answer.
Talk it over with God. He made us. He will know how to guide the Drs to fix you correctly.
Know others who have had an Anurysm. It isn't as big a deal today as it was 20 years ago. Still is surgery all the same. Put it in God's hands. Walk this through the steps and find peace.
He has kept you through all these years, He will see you through this as well.