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  • Title: Direct Flow valve-in-valve implantation in a degenerated mitral bioprosthesis.
    Author: Bruschi G, Cannata A, Barosi A, Colombo P, Soriano F, Nava S, Montrasio E, Botta L, Gagliardone MP, Klugmann S, De Marco F.
    Journal: EuroIntervention; 2016 Apr 20; 11(13):1549-53. PubMed ID: 26158554.
    Abstract:
    AIMS: Mitral valve reoperations due to failing bioprostheses, in patients affected by multiple comorbidities, are associated with high morbidity and mortality. Transcatheter techniques may evolve as complementary approaches to surgery in these patients at high risk for surgery. METHODS AND RESULTS: We describe a case of Direct Flow 25 mm transcatheter valve implantation as valve-in-valve in a degenerated mitral bioprosthesis through a transapical approach in a 63-year-old man affected by dilated cardiomyopathy. The patient was affected by Carpentier-Edwards 29 mm severe regurgitation. The 25 mm Direct Flow bioprosthesis was advanced through the mitral bioprosthesis into the left atrium and then positioned using the three independent positioning wires. Transoesophageal echocardiography evidenced normal Direct Flow function with no paravalvular regurgitation and a low transmitral gradient of 4 mmHg. CONCLUSIONS: Our successful experience, characterised by a Heart Team approach and multidisciplinary patient care, demonstrated the technical feasibility and procedural safety of Direct Flow valve-in-valve mitral implantation.
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