Heart Surgery

My mom found out the results of the heart cath test she had this morning and she has to have surgery to fix the 80% blockage she has in one of her heart valves/arteries(?). It isn't serious enough to have to be done immediately but it does have to be done within the next six months. She has known that she had a blockage problem but it was at 30% when checked last year. They only recently found out through a stress test that it had probably gotten worse and the cath test this morning confirmed that thought. It has overwhelmed me to think about my mom having to go under for a surgery because although she was told by the doctor that it is a pretty routine surgery and a guy that works with Ron also confirmed that it was a pretty easy surgery. It is still worrysom to think about. I not only don't want to loose my mom for any reason but it would absolutely kill me if my boys lost their grandma. Please pray for me and my family as we go through this time of uncertainty and pending surgery. Also my grandparents(my mom's parents) are moving here(here being GA) this next week to live with my parents. My dad is flying out there this friday to get them and their stuff,etc. So I ask that you pray for their safety too!