Aneurysms can form where there is a weakness in the artery wall, often in the chest or abdomen. These aneurysms can be extremely dangerous - because if they burst, or rupture they are most often fatal. There are risk factors, like high blood pressure but often aneurysms can form silently-without the patient knowing anything is wrong. In this program we'll take the viewers inside the surgical suite to see how aneurysms are discovered, diagnosed and ultimately repaired. We'll also show viewers new surgical techniques that are making repairing an aneurysm a much less invasive process.