Moderate mitral regurgitation in aortic root replacement surgery: Comparing mitral repair with no mitral repair

Pts undergoing aortic root replacement who moderate MR preoperatively were evaluated for outcomes after mitral repair vs no repair. Mitral repair was associated with longer crossclamp times, and postoperative renal failure. Root replacement improved MR without mitral repair, but mitral repair further improved the degree of regurgitation. There was no difference in long-term survival.