Patients who underwent transcatheter aortic valve replacement had a worse prognosis if they experienced moderate or severe mitral regurgitation, according to an evaluation of 1,007 MR patients who received TAVR treatment for severe aortic stenosis. "I still make the presumption that these patients got something out of TAVR, but that MR has a graded [adverse] effect on late outcomes," said SCAI fellow Dr. Ted Feldman. "For me, the utility of this paper is in managing patient expectations."

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