Sorry to be late to the game. My screen name has changed from debersole to Dr. Doug Ebersole on the advice of NetDoc (now Chariman of the Board).
There should not be a significant risk for recreational scuba diving with a moderate sized ascending aortic aneurysm which has been stable in size for 5 years. We get concerned about rupture and therefore start thinking about surgery if there is rapid progression of the size or at a diameter of around 5.5 cm. You are nowhere close to that size and it has been stable for several years. Diving should not put undue stress on the ascending aorta if your BP is well controlled. You mentioned lifting constraints which I would agree with. Hence, recreational diving with an aluminum 80 is fine but I would recommend avoiding diving doubles.
There should not be a significant risk for recreational scuba diving with a moderate sized ascending aortic aneurysm which has been stable in size for 5 years. We get concerned about rupture and therefore start thinking about surgery if there is rapid progression of the size or at a diameter of around 5.5 cm. You are nowhere close to that size and it has been stable for several years. Diving should not put undue stress on the ascending aorta if your BP is well controlled. You mentioned lifting constraints which I would agree with. Hence, recreational diving with an aluminum 80 is fine but I would recommend avoiding diving doubles.