Hello
Most vascular surgeons currently recommend surgery for asymptomatic aneurysms 5 cm or larger, since the risk of rupture (25-41% over 5 years) is substantially higher than risks from surgery.While more aggressive management of smaller aneurysms (4-5 cm) has been recommended by some, others have suggested that asymptomatic, slow-growing aneurysms under 6 cm can be successfully followed by serial ultrasound.
If your aneurysm is large enough, or if the aneurysm is growing more than 1 centimeter (cm) per year, surgery may be your best option.
Check this link
http://cpmcnet.columbia.edu/texts/gcps/gcps0016.html
Since the size of aneursym is below 4 cm , its is asymptomatic i would agree with your health care provider in following a wait and watch approach and getting it monitored at regular intervals (15 - 30 days).If the size increases at a faster rate surgery should be considered .
Also some points from the above study :
Few aneurysms less than 4 cm in diameter will rupture.
Overall, 3-6% of aneurysms greater than 4 cm in diameter will rupture annually
Edited by dr_amitmunjal on September 23 2006 at 11:34 AM
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