Abstract 18767: Preoperative Echocardiographic Predictors of Left Ventricular Remodeling After Surgical Correction of Mitral Regurgitation Caused by Leaflet Prolapse

• Published in: Circulation (New York, N.Y.) N.Y.), 2012-11, Vol.126 (suppl_21)
• Main Authors: MacHaalany, Jimmy, Parenteau, Julie, Dubois-Sénéchal, Isaïe-Nicolas, Bernier, Mathieu, Costerousse, Olivier, Bertrand, Olivier F, O'Connor, Kim, Dubois, Michelle, Voisine, Pierre, Sénéchal, Mario
• Format: Article
• Language: English
• ISSN: 0009-7322; 1524-4539
• DOI: 10.1161/circ.126.suppl_21.A18767

Abstract only Background: This study sought to determine whether preoperative echocardiography analysis before mitral valve surgery is predictive of postoperative left ventricular dysfunction in patients undergoing valve surgery for severe mitral regurgitation caused by leaflet prolapse. Methods: In 72 consecutive patients without coronary artery disease undergoing valve repair (n=29, 40%) or replacement (n=43, 60%), preoperative, early postoperative (1-2 days) and late postoperative (4.5 ± 2.5 months and 18 ± 8.0 months) echocardiographic parameters, including left ventricular (LV) dimensions, volumes and ejection fractions (EF) were measured. Patients were stratified and analysed in 3 different groups according to their respective baseline LVEF (group 1: EF ≥ 60, group 2: EF = 45-59%, group 3: EF < 45%). Results: Over a mean follow-up period of 546 ± 244 days, our cohort’s echocardiographic parameters showed the following reductions from baseline: LVEF: 56% ± 8 to 53% ± 9 (p