Long-Term Outcomes and Durability of the Mitroflow Aortic Bioprosthesis.
J Card Surg
; 31(5): 264-73, 2016 May.
Article
em En
| MEDLINE
| ID: mdl-26991888
ABSTRACT
BACKGROUND:
This study aims to determine the incidence and causes of structural valve deterioration (SVD) among all models of Mitroflow bioprostheses (A12/LX/DL), as well as to define their long-term clinical and hemodynamic performance. METHODS ANDRESULTS:
We retrospectively reviewed a series of 1023 patients who underwent aortic valve replacement with Mitroflow bioprostheses between 2001 and 2014. A small aortic root was found in 22.4% of patients. There were two cases of severe patient-prosthesis mismatch. Only 31 patients developed SVD. The rate of incidence was 8.1 cases per 1000 patient-years. Cumulative incidence of SVD was 1.4% and 3% at five and 10 years, respectively. Freedom from SVD was 97.4% and 88.2% at five and 10 years, respectively. Anticalcification phospholipid reduction treatment (PRT) for model DL was a protective factor for SVD. Multivariable analysis confirmed age <70 years and use of 19 mm valve as independent predictors of SVD. Cumulative survival was 76.6% at five years and 42.3% at 10 years (mean follow-up 3.8 ± 3.1 years). In multivariable analysis, neither the use of small aortic prosthesis (p = 0.18) nor the occurrence of SVD (p = 0.85) was found to be independent predictors of long-term survival.CONCLUSIONS:
Mitroflow valves demonstrate an acceptable rate of SVD and satisfactory long-term hemodynamic performance, particularly in patients with small aortic roots, age >70 years, and cases with severe left ventricular hypertrophy. PRT might contribute to improved long-term durability. doi 10.1111/jocs.12726 (J Card Surg 2016;31264-273).
Texto completo:
1
Coleções:
01-internacional
Base de dados:
MEDLINE
Assunto principal:
Valva Aórtica
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Estenose da Valva Aórtica
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Complicações Pós-Operatórias
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Bioprótese
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Teste de Materiais
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Próteses Valvulares Cardíacas
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Hemodinâmica
Tipo de estudo:
Diagnostic_studies
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Observational_studies
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Prognostic_studies
/
Risk_factors_studies
Limite:
Aged
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Female
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Humans
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Male
País/Região como assunto:
Europa
Idioma:
En
Revista:
J Card Surg
Assunto da revista:
CARDIOLOGIA
Ano de publicação:
2016
Tipo de documento:
Article
País de afiliação:
Espanha