<s>[INST] Hi...my husband has been told he has an Abdominal Aorta Aneurysm.  Las year his sonogram showed he had a 2.8cc.  He went for another sonogram this year and in a years time it jumped to a 3cc.  He is 69 years old with 3 stents in his heart and I am very worried about this Aneurysm.  How serious is this and when should he have this operated on.  Thank you for any informations  you can give meSincerely, Carmela Montello [/INST] Dear Mrs Costello, with the data you've presented there is no need for an operation right now. Aneurysms smaller than 4,0 cm have a nearly zero risk for rupturing. Aneurysms that expand by less than 0.3 cm/year are considered low risk as well. What he has to do, is to keep his systolic blood pressure within normal range and preferably close to 120mmHg. He should discuss with his doctor appropriate antihypertensive treatment options. I can't suggest anything right now because more information about his medical history is needed. Smoking cessation is very important. Smoking increases the risk for vascular damage. You can contact me, if you require further details. Kind Regards! </s>