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
Artigo
em Inglês
| LILACS
| ID: biblio-843456
Biblioteca responsável:
BR1.1
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:
Disponível
Coleções:
Bases de dados internacionais
Base de dados:
LILACS
Assunto principal:
Aorta Abdominal
/
Anastomose Cirúrgica
/
Técnicas de Sutura
/
Implante de Prótese Vascular
Limite:
Animais
Idioma:
Inglês
Revista:
Rev. bras. cir. cardiovasc
Assunto da revista:
Cardiologia
/
CIRURGIA GERAL
Ano de publicação:
2016
Tipo de documento:
Artigo
País de afiliação:
Brasil
Instituição/País de afiliação:
Universidade Estadual de Campinas/BR