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COMPARATIVE STUDY
JOURNAL ARTICLE
New design bioprosthesis: early outcome of Carpentier-Edwards PERIMOUNT Magna in the small annular aortic position.
Journal of Artificial Organs : the Official Journal of the Japanese Society for Artificial Organs 2011 December
The Carpentier-Edwards PERIMOUNT (CEP) Magna (Edwards Lifesciences, Irvine, CA, USA) is a newly developed bioprosthesis with an improved cuff design that allows its implantation into the smaller aortic annulus. We evaluated the hemodynamic performance of the CEP Magna for smaller aortic annulus cases. Patients who underwent aortic valve replacement for aortic stenosis receiving a Magna 19 mm (n = 13), were compared with a standard CEP (n = 19). In the 19-mm series, the real annular size was significantly smaller in the Magna than the standard (21.1 ± 0.8 vs. 19.8 ± 0.8 mm, p = 0.007). The Magna was significantly superior with respect to effective orifice area index (EOAI) at postoperative 3 months; however, no significant difference was seen in other factors (peak pressure gradient, left ventricular mass index, ejection fraction). At postoperative 3 months, despite the lack of statistical significance, the incidence of patient-prosthesis mismatch (PPM) was lower with the Magna. Using the same label size, the Magna can be implanted in a smaller aortic annulus with performance comparable with or better than hemodynamic performance with the standard CEP. The Magna is a useful prosthesis for the small aortic annular patient.
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