title: Apicoaortic bypass for a patient with structural valve deterioration of a 19 mm bioprosthetic valve.
abstract: We herein report a case of apicoaortic bypass (AAB) in a 79-year old patient presenting with structural valve deterioration who had undergone an aortic valve replacement with a 19 mm bioprosthetic valve and aortocoronary (A-C) bypass grafting 4 years prior to the AAB. Considering the small diameter of the aortic annulus, the existence of a previous A-C bypass and the high risk of reoperation, we selected implanting an AAB. The postoperative course was uneventful. The postoperative haemodynamics were evaluated using phase-contrast cine magnetic resonance imaging. It demonstrated that 58% of ventricular outflow was directed through the valved conduit. It showed that no obvious stagnation of the blood flow occurred during the entire cardiac cycle.
authors: Department of Cardiovascular Surgery, NTT Medical Center Tokyo, Tokyo, Japan. domoca@dnh.twmu.ac.jp
authors: Satoru
authors: S
authors: Domoto
authors: Osamu
authors: O
authors: Tagusari
authors: Yoshitsugu
authors: Y
authors: Nakamura
authors: Yoshimasa
authors: Y
authors: Seike
mesh_terms: D000368:Aged; D000714:Anastomosis, Surgical / Q000379:methods; D001013:Aorta, Thoracic / Q000601:surgery*; D001024:Aortic Valve Stenosis / Q000175:diagnosis / Q000601:surgery*; D001705:Bioprosthesis; D006350:Heart Valve Prosthesis; D006801:Humans; D019028:Magnetic Resonance Imaging, Cine; D008297:Male; D011475:Prosthesis Failure; D012086:Reoperation / Q000379:methods*; D014057:Tomography, X-Ray Computed