Abstract 17729: Multiple Reoperations on the Mitral Valve. Results and Risk Factors for Immediate and Long-term Outcomes

Introduction: Operative mortality and long-term outcomes are keystones in the choice of valve substitute and operative strategy in multiple reoperations on the mitral valve (MV). At the dawn of percutaneous valve-in-valve replacement, we sought to specifically evaluate the current outcome of conventional surgery for MV re-interventions. Methods: From January 2004 to December 2014, a series of 368 consecutive patients underwent an open MV redo-surgery. The operation was a first MV re-intervention in 229 patients (group 1), a second in 84 (group 2), a third in 41 (group 3) and a fourth or more in 14 (group 4). Multivariate analysis was performed to identify predictive factors of outcomes. Results: Two hundred patients were female (54%), mean age of the study population was 55±17 years and mean preoperative Euroscore II was 9.6±8.0%. The causes for MV re-intervention were: recurrent mitral regurgitation after MV repair in 56% (n=206), prosthetic valve dehiscence in 20.7% (n=76), structural valve deterioratio...