An ascending aortic root aneurysm procedure may be done in two ways. Valve-sparing aortic root repair (top-right image) replaces the enlarged section of the aorta with an artificial tube, called a graft. The aortic valve stays in place. In aortic valve and aortic root replacement (bottom-right image), the aortic valve and a part of the aorta are removed. A graft replaces the section of the aorta. A mechanical or biological valve replaces the valve.
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