no not really, and you should have asked that question in there. However from:
https://www.anzsvs.org.au/patient-information/aortic-aneurysm/
A Canadian study has reported specific figures for the risk of rupture based on aneurysm size (Brown PM et al 2003). For men the annual risk of an aneurysm rupturing was 1-1.8% for aneurysms between 5.0 and 5.9cms, but increased to 14.1-15.6% when the aneurysm was 6cms or greater. In other words a man with a 5.4cms diameter aneurysm has only 1 or 2 chances in a hundred that his aneurysm will rupture in the next year. Once the aneurysm increases to 6.1cms that risk will increase to approximately 15 chances in a hundred.
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When an aneurysm reaches 5.5 cms most surgeons would consider offering surgical intervention. This is because, at this size, the aneurysm has a greater risk of rupture. It then becomes as safe to have an operation to repair the aneurysm, as it is to leave the aneurysm alone. Surgery may also be considered if your aneurysm is rapidly expanding on regular scans or it starts to cause other complications (see above). Rapid expansion means more than 7mm in 6 months or 10mm in one year.
Whether you proceed with surgery will not just depend on the size of the aneurysm. It is important that each patient is fit enough to withstand the operation. Fitness for surgery can be affected by many factors and the decision whether or not to proceed with surgery can be a difficult one, as it is a very major operation. It will only be after a detailed discussion with your surgeon, regarding your own personal circumstances and type of treatment available, that a decision can be reached.
There is still some debate on the treatment of aneurysms between 4.0 and 5.5cms despite the large UK and North American trials indicating that there is no clear benefit. Looked at in another way though, there was no clear disadvantage to having the aneurysm treated at an earlier stage. Overall 60% of all patients in the trial would eventually require an operation so why not step in at an earlier stage? Taking patients with aneurysms over 5.0cms the argument is even more convincing, as over 80% of these patients eventually require surgery. However, the accepted size to initiate treatment is still 5.5cms (55mm).
HTH