Aortic valve replacement with smaller valve size.
Asian Cardiovasc Thorac Ann
; 19(5): 314-9, 2011 Oct.
Article
en En
| MEDLINE
| ID: mdl-22100925
The occurrence of prosthesis-patient mismatch after aortic valve replacement with a small valve size was evaluated in 249 patients, focusing on echocardiographic data. Aortic valve pathology included regurgitation in 174 patients and stenosis in 75. Echocardiography was performed in the early and late postoperative periods. A projected effective orifice area index < 0.85 cm(2)·m(-2) was noted in 56 patients; values ≥ 0.85 cm(2)·m(-2) were found in 128. Postoperative changes in ejection fraction, left ventricular mass regression, and peak transprosthetic gradient were similar in both groups. Small prostheses (≤ 19 mm) were used in 43 patients who had significantly higher postoperative transprosthetic gradients in both the early and late periods, compared to those with larger prostheses. Our findings show that the occurrence of prosthesis-patient mismatch after aortic valve replacement is rare. Left ventricular mass regression occurred in most patients, with acceptable transprosthetic gradients.
Texto completo:
1
Colección:
01-internacional
Base de datos:
MEDLINE
Asunto principal:
Válvula Aórtica
/
Insuficiencia de la Válvula Aórtica
/
Estenosis de la Válvula Aórtica
/
Prótesis Valvulares Cardíacas
/
Implantación de Prótesis de Válvulas Cardíacas
Tipo de estudio:
Diagnostic_studies
/
Observational_studies
Límite:
Aged
/
Female
/
Humans
/
Male
País/Región como asunto:
Asia
Idioma:
En
Revista:
Asian Cardiovasc Thorac Ann
Asunto de la revista:
ANGIOLOGIA
/
CARDIOLOGIA
Año:
2011
Tipo del documento:
Article
País de afiliación:
Japón
Pais de publicación:
Reino Unido