<P> The reason for surgical repair of type A dissections is that ascending aortic dissections often involve the aortic valve , which , having lost its suspensory support , telescopes down into the aortic root , resulting in aortic incompetence . The valve must be resuspended in order to be reseated , as well as to repair or prevent coronary artery injury . Also , the area of dissection is removed and replaced with a Dacron graft to prevent further dissection from occurring . However , type B dissections are not improved , from a mortality point of view , by the operation , unless leaking , rupture , or compromise to other organs , e.g. kidneys , occurs . </P>
<P> The reason for surgical repair of type A dissections is that ascending aortic dissections often involve the aortic valve , which , having lost its suspensory support , telescopes down into the aortic root , resulting in aortic incompetence . The valve must be resuspended in order to be reseated , as well as to repair or prevent coronary artery injury . Also , the area of dissection is removed and replaced with a Dacron graft to prevent further dissection from occurring . However , type B dissections are not improved , from a mortality point of view , by the operation , unless leaking , rupture , or compromise to other organs , e.g. kidneys , occurs . </P>
when would a stanford type b require surgery
when would a stanford type b require surgery
leaking , rupture , or compromise to other organs , e.g. kidneys , occurs
leaking , rupture , or compromise to other organs , e.g. kidneys , occurs