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Preoperative patient characteristics and echocardiographic findings
Values are presented as mean±standard deviation or number (%). Ordinal values are expressed as follows: none, 0; mild, 1; moderate, 2; severe, 3.
QR, quadrangular resection; CR, chordal replacement; NYHA, New York Heart Association; MR, mitral regurgitation; LA, left atrium; LVEDD, left ventricular end diastolic dimension.
