Aortic Aneurysms Baystate Health heart and vascular specialists offer the latest diagnostic tests and treatment options to prevent further damage or rupture of aortic aneurysms. We tailor your treatment based on the type of aneurysm, size, and its location. Types of aortic aneurysm include: Abdominal aortic aneurysm (AAA) – occurs in part of the aorta that passes through the abdomen. If left untreated, it may continue to enlarge and cause severe internal bleeding and possibly death. These are typically treated surgically by vascular surgeons. Thoracic aortic aneurysm (TAA) – occurs on the aorta, passing through the chest. TAAs are less common than abdominal aneurysms and are typically treated surgically by cardiac surgeons. Our vascular surgeons have been treating aortic aneurysms for decades and offer less invasive approaches, such as stent graft repair.