The Medtronic Melody® transcatheter pulmonary valve implanted at 24-mm diameter--it works.
Catheter Cardiovasc Interv
; 82(5): 816-23, 2013 Nov 01.
Article
en En
| MEDLINE
| ID: mdl-23359563
ABSTRACT
OBJECTIVES:
We report the Melody valve implanted and/or expanded to 24-mm diameter.BACKGROUND:
The Medtronic Melody valve has been implanted up to 22 mm in the pulmonary position for over a decade.METHODS:
A retrospective chart review was performed on 82 patients who underwent Melody valve implant. Technical implant method, pre- and postimplant echocardiographic findings, and initial follow-up were reviewed.RESULTS:
Between 04/2008 and 12/2011, 13 Melody valves were successfully implanted in 11 patients, median age 35 years (range 16-61 years), in the pulmonary (bioprosthetic valve, right ventricle to pulmonary artery conduit, native valve) position (n = 9), tricuspid position (bioprosthetic valve n = 3), and aortic position (bioprosthetic valve n = 1). Ten valves were delivered on a 24-mm balloon in balloon catheter and three were implanted using a 22-mm Ensemble balloon delivery system, followed by postdilation using a 24-mm × 2-cm Atlas balloon catheter. Postimplant, the median peak systolic gradient across the pulmonary valve was 7 mm Hg and median gradient across the tricuspid valve was 3 mm Hg. There was no change in gradient across the Melody valve in the aortic position where valve prosthesis-patient mismatch was present. Postimplant intracardiac echocardiography demonstrated none or mild valve regurgitation. No more than mild regurgitation was noted at a median follow-up of 9.5 months.CONCLUSIONS:
The Melody valve can be implanted at 24 mm in the stenotic/regurgitant bioprosthetic pulmonary, tricuspid, and aortic valve, dysfunctional right ventricle to pulmonary artery conduit, and the native right ventricular outflow tract, whereas the valve remains competent with only mild regurgitation.Palabras clave
Texto completo:
1
Colección:
01-internacional
Banco de datos:
MEDLINE
Asunto principal:
Diseño de Prótesis
/
Válvula Pulmonar
/
Prótesis Valvulares Cardíacas
/
Obstrucción del Flujo Ventricular Externo
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Cateterismo Cardíaco
/
Implantación de Prótesis de Válvulas Cardíacas
/
Enfermedades de las Válvulas Cardíacas
Tipo de estudio:
Diagnostic_studies
/
Observational_studies
Límite:
Adolescent
/
Adult
/
Humans
/
Middle aged
Idioma:
En
Revista:
Catheter Cardiovasc Interv
Asunto de la revista:
CARDIOLOGIA
Año:
2013
Tipo del documento:
Article