How much septal-lateral mitral annular reduction do you get with new ischemic/functional mitral regurgitation annuloplasty rings?
OBJECTIVE: Disproportionate reduction of the mitral septal-lateral annular dimension is the goal in the surgical treatment of ischemic or functional mitral regurgitation and avoids the need for ring “downsizing.” How much the new annuloplasty rings designed for patients with ischemic/functional mitral regurgitation reduce annular septal-lateral dimension, however, is proprietary information and debated. METHODS: Outer and inner septal-lateral and commissure-commissure diameters of all available sizes of Edwards GeoForm, Edwards IMR ETlogix (both Edwards Lifesciences, Irvine, Calif), St Jude Medical Rigid Saddle Annuloplasty Ring (St Jude Medical, Inc, St Paul, Minn), and Medtronic Profile 3D (Medtronic, Minneapolis, Minn) annuloplasty rings with and without the fabric covering were measured with electronic calipers. These rings were compared with a Carpentier-Edwards Physio ring (Edwards Lifesciences) to assess the relative amount of septal-lateral and commissure-commissure dimension c
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