Background-Application of annuloplasty rings during mitral valve (MV) repair has been shown to significantly change the mitral annular geometry. Until recently, a comprehensive twodimensional echocardiographic evaluation of annular geometric changes was difficult owing to its nonplanar orientation. In this study, an analysis of the three-dimensional intraoperative transesophageal echocardiographic evaluation of the MV annulus is presented before and immediately after repair.

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The implementation of POMA was the only significant known (or measured) factor that improved the operational efficiency and clinical outcome of a single surgeon's practice. The authors believe the principles deserve to be studied further to see if the results can be replicated.