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- W2563900057 abstract "Composite graft replacement of the as- cending aorta and aortic valve is indicated for a vari- ety of conditions affecting the aortic root. In most cases, cephalad displacement of the coronary ostia permits direct reimplantation of the ostia into the composite graft. Occasionally, anatomical factors exist that preclude the safe advancement of the ostia to the graft for direct anastomosis. A method for dealing with this problem utilizing a short inter- posed polytetrafluomethylene graft between com- nary ostia and composite graft is presented. Replacement of the ascending aorta and aortic valve with a composite graft has become ac- cepted management of selected patients with annuloaortic ectasia, complicated ascending aortic dissections, aneurysms involving the sinuses of Valsalva, or extensive endocarditis of the aortic root (l-71. The procedure originally described by Bentall and DeBono in 1968 (l) is most frequently utilized today, with minor modifications. In this technique, the composite graft is first sutured to the aortic annulus; small buttons of graft are then excised in locations corresponding to the coronary ostia. The graft is then sutured directly to the aortic wall sur- rounding the ostia, following which the distal graft-to-aorta anastomosis is constructed. This method of direct implantation of the coronary ostia into the graft requires that the aorta surrounding the coronary ostia be able to hold sutures and that the ostia be suf- ficiently mobile to be brought to an accessible portion of the graft in order to allow for anastomosis without excessive tension. In most patients who require replacement of the entire aortic root and valve, chronic degenerative" @default.
- W2563900057 created "2017-01-06" @default.
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- W2563900057 date "1981-01-01" @default.
- W2563900057 modified "2023-09-27" @default.
- W2563900057 title "Replacement of the Ascending Aorta and Aortic Valve with a Corn osite Graft in Patients with Nondisplace cp Coronary Ostia" @default.
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