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Open aortic surgery (OAS), also known as open aortic repair (OAR), describes a technique whereby an abdominal, thoracic or retroperitoneal surgical incision is used to visualize and control the aorta for purposes of treatment, usually by the replacement of the affected segment with a prosthetic graft.
When used to treat thoracic aortic disease, the procedure is then specifically termed TEVAR for "thoracic endovascular aortic/aneurysm repair." EVAR involves the placement of an expandable stent graft within the aorta to treat aortic disease without operating directly on the aorta.
A stent graft placed in the thoracic aorta to treat a thoracic aortic aneurysm. The size cut off for aortic aneurysm is crucial to its treatment. A thoracic aorta greater than 4.5 cm is generally defined as aneurysmal, while a size greater than 5.5 cm is the distinction for treatment, which can be either endovascular or surgical, with the ...
Modern treatment of aortic diseases stems from development and advancements from Michael DeBakey and Denton Cooley. In 1955, DeBakey and Cooley performed the first replacement of a thoracic aneurysm with a homograft. In 1958, they began using the Dacron graft, resulting in a revolution for surgeons in the repair of aortic aneurysms. He also was ...
The Bentall procedure is a type of cardiac surgery involving composite graft replacement of the aortic valve, aortic root, and ascending aorta, with re-implantation of the coronary arteries into the graft. This operation is used to treat combined disease of the aortic valve and ascending aorta, including lesions associated with Marfan syndrome.
In 1986, Volodos started using bifurcated stent grafts for intraoperative grafting of the abdominal aorta. This shortened the time for which the vessel had to be clamped. The first-in-the-world aortic stent graft implantation was performed by Volodos on March 24, 1987, to treat a post-traumatic thoracic aortic aneurysm. [12]
For aneurysms of the thoracic aorta, thoracic endovascular aortic repair (TEVAR) has become a valid alternative to open repair. This method may even be applied to pathologies of the aortic arch and the distal descending aorta. [12] A common complication of EVAR are endoleaks. These may be missed by 2D angiographic evaluation.
Elective endovascular aortic grafting is now routinely attempted when possible. Endovascular aortic repair (EVAR) refers to treatment of an abdominal aortic aneurysm, while thoracic endovascular aortic repair (TEVAR) is performed on the thoracic aorta. A ruptured aneurysm may be taken emergently for open, endovascular or combination repair.
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