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Aneurysm pulsatility after endovascular exclusion: an experimental study using human aortic aneurysms
Orra, Hussein Amin; Puech-Leão, Pedro; Silva, Erasmo Simão da; Silva, Domingos Guerino.
  • Orra, Hussein Amin; Universidade de São Paulo. Faculdade de Medicina. Cirurgia Vascular e Endovascular. São Paulo. BR
  • Puech-Leão, Pedro; Instituto Dante Pazzanese de Cardiologia. Cirurgia Vascular. São Paulo. BR
  • Silva, Erasmo Simão da; Universidade de São Paulo. Faculdade de Medicina. Cirurgia Vascular e Endovascular. São Paulo. BR
  • Silva, Domingos Guerino; Universidade de São Paulo. Faculdade de Medicina. Cirurgia Vascular e Endovascular. São Paulo. BR
Clinics ; 63(1): 67-70, 2008. ilus, tab
Artigo em Inglês | LILACS, SES-SP | ID: lil-474930
ABSTRACT

OBJECTIVE:

To measure the pulsatility of human aneurysms before and after complete exclusion with an endograft.

METHOD:

Five aortic aneurysms obtained during necropsy were submitted to pulsatile perfusion before and after implantation of a bifurcated endograft. The specimens were contained in a closed chamber filled with saline solution. A vertical tube attached to the chamber was used to measure volume dislocation in each systole. Mural thrombus was kept intact, and the space around the device was filled with human blood. After each experiment, the aneurysm was opened to check for the correct positioning and attachment of the device.

RESULTS:

The level of the saline column oscillated during pulsation in each case, with respective amplitudes of 17, 16, 13, 7, and 25 cm before the endograft insertion. After the insertion, the amplitudes dropped to 13, 12, 9, 3.5, and 23 cm, respectively. The differences were not significant. During the post-experimental examination, all devices were found to be in position and well attached to the neck and iliacs. No endoleak was detected during perfusion or by visual inspection.

CONCLUSION:

Pulsation of an endograft is transmitted to the aneurysm wall even in the absence of endoleak, and should not be interpreted as procedural failure.
Assuntos

Texto completo: DisponíveL Índice: LILACS (Américas) Assunto principal: Fluxo Pulsátil / Aneurisma da Aorta Abdominal / Implante de Prótese Vascular Limite: Humanos Idioma: Inglês Revista: Clinics Ano de publicação: 2008 Tipo de documento: Artigo Instituição/País de afiliação: Instituto Dante Pazzanese de Cardiologia/BR / Universidade de São Paulo/BR

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Texto completo: DisponíveL Índice: LILACS (Américas) Assunto principal: Fluxo Pulsátil / Aneurisma da Aorta Abdominal / Implante de Prótese Vascular Limite: Humanos Idioma: Inglês Revista: Clinics Ano de publicação: 2008 Tipo de documento: Artigo Instituição/País de afiliação: Instituto Dante Pazzanese de Cardiologia/BR / Universidade de São Paulo/BR