In 2016 he had an aortic aneurysm which was repaired by evar. He recovered well from that but that is when his kidney function started to decline. In 2018 he had a mild heart attack and heart cath. He has been seeing a nephrologist since then and is now having some heart problems requiring another cath. He is entering the hospital today for hydration of his kidneys and having the cath tomorrow. He has been doing well for the last two years. Even though his gfr has been low, his nephrologist says other factors are good and he feels well, plays golf, and our lives are pretty normal. I am just praying the dye does no damage his kidneys any further, but from what I read, it is possible...he is 76 years old.