Predictors of left ventricular reverse remodeling after percutaneous therapy for mitral regurgitation with the MitraClip system

Objectives To investigate the predictors and clinical impact of left ventricular reverse remodeling (LVRR) after MitraClip (MC) therapy for degenerative (DMR) and functional mitral regurgitation (FMR). Background MC therapy induces LVRR in patients with mitral regurgitation (MR) at high‐risk for surgery. However, specific data on predictors of LVRR therapy are limited. Methods This study included 164 patients treated by MC implantation with complete clinical and echocardiographic evaluation at baseline, 6 months, and 12 months. LVRR was defined as a decrease of ≥10% of the left ventricular end‐diastolic diameter after 12 months and was found in 49% of the patients. Results LVRR was associated with significantly reduced event rate 2 years after MC procedure. In the total cohort, multivariate regression analysis determined severe recurrent/residual MR after 12 months (p = .010, odds ratio [OR] = 0.26), male gender (p = .050, OR = 0.49) and left ventricular ejection fraction (LVEF)
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