an operation to replace a section of the aorta (= the largest blood vessel) at a point where it leaves the heart, but keeping the heart valve

In valve-preserving aortic root repair an artificial graft is used to replace the damaged section of the aorta. 在瓣膜保留主动脉根部重建术中，一根人工血管支架被置入，取代主动脉受损的部分。