Transcatheter pulmonary valve replacement in sheep: 6-month evaluation of self-expanding valved stents / 中华心血管病杂志
Chinese Journal of Cardiology
;
(12): 151-155, 2008.
Artículo
en Chino
| WPRIM
| ID: wpr-299480
ABSTRACT
<p><b>OBJECTIVE</b>The purpose of this study was to determine the feasibility of transcatheter pulmonary valve replacement in sheep up to 6 months post procedure.</p><p><b>METHODS</b>Fresh sheep pericardium treated with a 0.6% glutaraldehyde solution for 36 hours was sutured to a valvular ring and then fixed onto a newly designed nitinol self-expandable stent. Thoracotomy was performed in sheep (23.5 +/- 3.1) kg under general anesthesia and the device was delivered into the native pulmonary valve of the sheep via the anterior wall of right ventricle by catheter and fooled for 6 months.</p><p><b>RESULTS</b>One sheep died 4 months after the procedure due to in-stent thrombosis. Another 4 animals survived the 6-month observing period. Angiographic and hemodynamic measurements confirmed good positioning and function of the stents with a competent valve immediately post procedure and 6 months post the procedure in surviving animals.</p><p><b>CONCLUSION</b>Implantation of the nitinol self-expandable stent in the pulmonary valve position by a transcatheter approach is feasible and good function of transcatheter implanted memory nitinol valved stents was shown after 6 months of implantation in sheep.</p>
Texto completo:
Disponible
Índice:
WPRIM (Pacífico Occidental)
Asunto principal:
Válvula Pulmonar
/
Cirugía General
/
Prótesis Valvulares Cardíacas
/
Ovinos
/
Stents
/
Implantación de Prótesis de Válvulas Cardíacas
/
Modelos Animales de Enfermedad
/
Métodos
Límite:
Animales
Idioma:
Chino
Revista:
Chinese Journal of Cardiology
Año:
2008
Tipo del documento:
Artículo
Similares
MEDLINE
...
LILACS
LIS