Department of Cardiac Surgery, Michigan Medicine, University of Michigan, Ann Arbor, Michigan.
Department of Cardiac Surgery, Michigan Medicine, University of Michigan, Ann Arbor, Michigan.
Ann Thorac Surg. 2021 Aug;112(2):e139-e141. doi: 10.1016/j.athoracsur.2021.01.072. Epub 2021 Mar 6.
For a fifth-time redo aortic valve replacement, a Y incision was made through the left-noncommissure post into the aortomitral curtain above the mitral annulus, undermining the aortic annulus below the nadirs of left coronary and noncoronary cusps without violating the left atrium or mitral valve. A rectangular Hemashield (Maquet Cardiovascular, San Jose, CA) patch was used to extensively enlarge the aortomitral curtain. The aortic annulus was increased from 21 mm to 27 mm for a mechanical aortic valve replacement. The patient was discharged without blood transfusion or any complications. Our enlargement technique was simple and effective to enlarge the aortic annulus for mechanical aortic valve replacement.
患者因主动脉瓣五度置换，于左-无交界后切开左心室，进入二尖瓣环上方的主动脉-二尖瓣交界，在不侵犯左心房或二尖瓣的情况下，于左冠状动脉和无冠状动脉瓣最低点下方切开主动脉瓣环。矩形 Hemashield（Maquet Cardiovascular，圣何塞，加利福尼亚州）补片被用于广泛扩大主动脉-二尖瓣交界。主动脉瓣环从 21 毫米扩大到 27 毫米，以进行机械主动脉瓣置换。患者无输血或任何并发症出院。我们的扩大技术简单有效，可用于扩大机械主动脉瓣置换的主动脉瓣环。
