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Schäfer, Ulrich, Maisano, Francesco, Butter, Christian, Franzen, Olaf, Baldus, Stephan, Hausleiter, Jörg, Ussia, Gian Paolo, Sievert, Horst, Geist, Volker, Widder, Julian Daniel, Moccetti, Tiziano and Schillinger, Wolfgang (2016): Impact of Preprocedural Left Ventricular Ejection Fraction on 1-Year Outcomes After MitraClip Implantation (from the ACCESS-EU Phase I, a Prospective, Multicenter, Nonrandomized Postapproval Study of the MitraClip Therapy in Europe). In: American Journal of Cardiology, Vol. 118, No. 6: pp. 873-880

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This report describes the 12-month outcomes of the a prospective, multicenter, nonrandomized post-approval study of the MitraClip therapy in Europe (ACCESS-EU post approval study of MitraClip therapy) with respect to preprocedural left ventricular ejection fraction (LVEF). Transcatheter deployment of the MitraClip device may be considered for patients who are not suitable for conventional surgery. A total of 567 patients with significant mitral regurgitation (MR) underwent MitraClip therapy. Of those, 393 had functional MR (FMR) and were subdivided by preprocedural LVEF (A: 10% to 20%, B: >20% to 30%, C: >30% to 40%, D: >40%). Procedural safety and efficacy and treatment outcomes including MR grade, New York Heart Association (NYHA) functional class, 6-minute walk test, and the Minnesota Living with Heart Failure Questionnaire were analyzed at baseline, 30 days, and 12 months. Baseline mean logistic EuroSCORE was 25 +/- 19;87% of patients were in NYHA classes III or IV (A: 96%, B: 83%, C: 90%, D: 86%). There was no incidence of death or stroke intraprocedurally. Eleven patients died within 30 days with no differences among subgroups. Kaplan Meier survival at 12 months was 81.8% (A: 71%, B: 79%, C: 87%, D: 86%). There was a significant improvement in MR severity at 30 days and 12 months (p <0.0001). At 12 months, all subgroups experienced similar improvements in NYHA class, 6-minute walk test, and Minnesota Living with Heart Failure Questionnaire. This real-world registry reports promising results of MitraClip therapy in patients with FMR. In conclusion, the low rates of hospital mortality and adverse events in patients with FMR even in patients with severely reduced LVEF provide additional evidence of substantial benefits after MitraClip implantation. (c) 2016 ELSEVIER. All rights reserved.

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