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The Journal of Cardiovascular Surgery 2014 December;55(6):831-9

Copyright © 2014 EDIZIONI MINERVA MEDICA

lingua: Inglese

Autologous pericardium annuloplasty: a “physiological” mitral valve repair

Salvador L. 1, 2, Cavarretta E. 1, 3, Minniti G. 1, Di Angelantonio E. 4, Salandin V. 1, Frati G. 3, Polesel E. 1, Valfrè C. 1

1 Cardiac Surgery Division, Santa Maria dei Battuti Hospital, Treviso, Italy; 2 Cardiac Surgery Division, San Bortolo Hospital, Vicenza, Italy; 3 Department of Medical Surgical Sciences and Biotechnology, Sapienza University of Rome, Latina, Italy; 4 Department of Public Health and Primary Care, University of Cambridge, Cambridge, UK


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AIM: Autologous pericardium annuloplasty (APA) is an alternative to prosthetic ring implantation for mitral valve (MV) repair, avoiding the use of foreign material and preserving the mitral annulus’ physiological motion. However, data on durability are questionable. Therefore, we analyzed long-term outcomes of treating degenerative mitral regurgitation (MR) with APA.
METHODS: Four hundred ninety patients (mean age, 54.3±11.3 years, [15-77 years]; N.=360 men [74.1%]) who had undergone APA and neochordae implantation between July 1988 and December 2006 were retrospectively studied.
RESULTS: MR was purely degenerative in 434 (89.3%) patients; endocarditis was present in 44 (9.1%) patients; an anterior, posterior, or bileaflet prolapse was present in 32 (6.6%), 241 (49.6%), and 213 (43.8%) patients, respectively. Clinical follow-up was 100% complete at a median of 6.5 years (5th percentile, 0.9; 95th percentile, 14.9) with an echocardiographic study in 92% of patients. In-hospital mortality was 1% (5 deaths); overall and late cardiac mortality were 7.6% and 3.9% (37 and 19 deaths), respectively. Kaplan-Meier curves for overall survival, late cardiac survival, and freedom from reoperation at 15 years (20 cases) were 86% (95%CI 80-91), 93% (95%CI 88-96), and 93% (95%CI 88-96), respectively. At 15 years, freedom from recurrent MR (28 patients) and endocarditis (6 events) were 86% (95%CI 76-91) and 97% (95%CI 92-99). Dehiscence, significant calcification of APA, and hemolysis never occurred. At reoperations, annular pericardium appeared covered by a smooth layer of tissue.
CONCLUSION: APA is feasible, safe, and cost-effective, providing long-term durability, high survival, and a low rate of valve-related complications.

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