closure of large defects between the aorta and left ventricle with a patch graft and then suturing the aortic valve to the patch and to the remaining native aortic annulus allows debridement of all necrotic tissue , placement of the sutures through normal tissue , closure of the defect under no tension , and suturing of the new valve at its normal anatomic level .
C0225897
left
C0003501
aortic valve