As I have said in other posts, I always recommend you find a cardiologist who specializes in aortic diseases it makes a huge difference when trying to find answers, (not all cardiologist do) ensuring you have the correct follow up protocol.

Speaking from what my surgeon told me, in my case I have a bicuspid aortic valve which will have to be replaced at some point and had a 5.2 cm ascending aneurysm, I had the aneurysm repaired but the aortic valve was left in place as it was still highly functional and (in his words) therefore better than any artificial valve he could use. At some point it will deteriorate to the point it will need replacement but now that the aneurysm is repaired the replacement can be done endovascularly.

I interpreted that to say that they would not consider replacing the valve by catheter with the aneurysm in place as it could be risky. In your case I assume the regurgitation may be caused by the root enlargement, so maybe at some point one of the two or both issues will lead them to recommend a repair/valve replacement. In your case it seems it has grown but slowly and it is getting close to the 5.0 mark.

Again, an experienced cardiothoracic surgeon and/or an aortic disease specialist (cardiologist) would be able to give you the right answer in your particular case.

All the best