Experimental model for sutureless proximal anastomosis by the viabahn open revascularization technique (VORTEC)
Rev. bras. cir. cardiovasc
;
31(6): 440-443, Nov.-Dec. 2016. tab, graf
Artículo
en Inglés
| LILACS
| ID: biblio-843456
ABSTRACT
Abstract Introduction:
In the treatment of complex aneurysms, debranching is an extra-anatomical revascularization of visceral arteries followed by endograft coverage of the thoracoabdominal aorta. It eliminates the need for a thoracotomy and aortic clamping, but requires the performance of several technically demanding visceral anastomosis. In 2008, Lachat described visceral revascularization with the use of a sutureless distal anastomosis, performed by the telescoping of an endograft in the visceral branch, named VORTEC (Viabahn Open Revascularization TEChnique).Objective:
An experimental model was created to test the feasibility and short term results of performing a telescoped proximal anastomosis to the abdominal aorta.Methods:
Swine model. The abdominal aorta was dissected and ligated between the renal arteries and the iliac vessels. Three centimeters bellow the renal arteries a Viabahn endograft was telescoped for 2 cm into the proximal aorta. The other extremity was conventionally anastomosed to the distal aorta. Patency, sealing and tensile strength of the anastomosis were tested.Results:
Time for performing the telescoped anastomosis was shorter (5.4±2.8 min versus 10.3±3.4 min, P<0.05). All grafts were patent and both types of anastomosis presented no bleeding. Immediate tensile strength showed a higher strength of the conventional suture (22.7 x 14.3 N, P<0.09). After 30 days there was no pseudo-aneurysms and the strength of the conventional and VORTEC anastomosis were similar (37.3 x 40.8 N, respectively, P=0.17).Conclusion:
Telescoped proximal anastomosis by the technique of VORTEC is feasible. After 30 days the tensile strength of the both anastomosis were similar.
Texto completo:
Disponible
Índice:
LILACS (Américas)
Asunto principal:
Aorta Abdominal
/
Anastomosis Quirúrgica
/
Técnicas de Sutura
/
Implantación de Prótesis Vascular
Límite:
Animales
Idioma:
Inglés
Revista:
Rev. bras. cir. cardiovasc
Asunto de la revista:
Cardiología
/
Cirugía General
Año:
2016
Tipo del documento:
Artículo
País de afiliación:
Brasil
Institución/País de afiliación:
Universidade Estadual de Campinas/BR
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