Ohtsubo S, Itoh T
Department of Thoracic and Cardiovascular Surgery, Saga Medical School, Saga, Japan.
Kyobu Geka. 2005 Jul;58(8 Suppl):695-700.
Operative indications for aortic root reconstruction generally include aortic root aneurysm, root destruction in acute dissection, extensive annular abscess in infective endocarditis, and small aortic annuls. In elderly patients, Bentall operation with bioprosthesis should be one of the standard operation because bioprosthesis in aortic position demonstrated excellent long-term valve durability. Freestyle aortic bioprosthesis has been increasingly implanted as a full root replacement in elderly patients with small aortic annuls and carcified aortic root. When aortic valve is nearly normal, valve-sparing aortic root replacement can be an ideal operation without need for prosthetic valve. Indication for valve-sparing operation should be considered when the patient is physically and socially active and does not carry significant comorbidity.
主动脉根部重建的手术指征一般包括主动脉根部瘤、急性主动脉夹层的根部破坏、感染性心内膜炎中的广泛瓣环脓肿以及小主动脉瓣环。对于老年患者,带生物瓣的Bentall手术应是标准手术之一,因为主动脉位生物瓣显示出优异的长期瓣膜耐久性。Freestyle主动脉生物瓣越来越多地被植入,用于小主动脉瓣环和钙化主动脉根部的老年患者的全根部置换。当主动脉瓣基本正常时,保留瓣膜的主动脉根部置换术可以是无需人工瓣膜的理想手术。当患者身体状况和社会活动能力良好且无明显合并症时,应考虑保留瓣膜手术的指征。