Something that damages or weakens blood vessels may perhaps increase the risk of the aneurysm. Thoracic aortic aneurysm risk factors include things like: Any thoracic aortic aneurysm 6 cm or bigger calls for surgery, but if the patient has Marfan syndrome or familial history of aneurysms, 5-cm aneurysms are viewed https://www.sgvascularctr.com/a-comprehensive-guide-to-aortic-aneurysm-in-singapore/