Jornal Vascular Brasileiro
https://jvascbras.org/article/doi/10.1590/jvb.2014.019
Jornal Vascular Brasileiro
Original Article

Vascular ultrasonography for follow-up of endovascular repair of abdominal aorta aneurysms

Ultrassonografia vascular no seguimento da correção endovascular do aneurisma da aorta abdominal

Domingos Moraes Filho; Fernando Barbosa Trevisan; José Manoel da Silva Silvestre; Wander Eduardo Sardinha; Eduardo Durante Ramires; Silfayner Victor Mathias Dias; Henrique Matsuda

http://dx.doi.org/10.1590/jvb.2014.019 J Vasc Bras, vol.13, n3, p.168-174, 2014
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Abstract

BackgroundThere is little information available on follow-up of abdominal aortic aneurysm patients treated with endovascular repair using vascular ultrasonography in Brazil or on how it compares with the results of angiotomography. Since ultrasonography is an examination that is risk-free, inexpensive and widely available, it is a very attractive method. In this study we attempted to evaluate the sensitivity and specificity of vascular ultrasonography for follow-up of these patients by comparing the method with angiotomography.Materials and methodsWe conducted a prospective study from June 2012 to May 2013. We examined patients followed-up at the endovascular surgery clinic run by the University Hospital of Londrina after endovascular repair of abdominal aortic aneurysms. All patients underwent angiotomography for follow-up and were also examined using simple abdominal X-rays and vascular ultrasonography.ResultsA total of 30 patients were analyzed, with a mean age of 73 years and a mean aneurysm diameter of 6 cm. Four endoleaks were detected. Vascular ultrasonography achieved sensitivity of 75% and specificity of 96% for classification of these endoleaks, in comparison with angiotomography.ConclusionsVascular ultrasonography is an excellent primary method for evaluation and post-surgical follow-up of patients treated with endovascular repair of abdominal aorta aneurysms. However, when ultrasonography detects problems or is difficult to accomplish, it should be supplemented with a more specific investigation for diagnostic confirmation.

Keywords

aortic aneurysm, ultrasonography, endoleaks

Resumo

ContextoAs informações sobre o seguimento de pacientes submetidos à correção endovascular de aneurisma de aorta abdominal com ultrassonografia vascular no Brasil são escassas, bem como sua comparação com os resultados obtidos com a angiotomografia. Na medida em que a ultrassonografia é um exame sem riscos, de baixo custo e de grande disponibilidade, esta se torna um método bastante atraente. Na presente pesquisa, procuramos avaliar a sensibilidade e a especificidade da ultrassonografia vascular (USV) no acompanhamento desses pacientes, comparando este método com a angiotomografia.Materiais e métodosRealizamos estudo prospectivo durante o período de junho de 2012 a maio de 2013. Para tanto, examinamos pacientes acompanhados pelo Ambulatório de Cirurgia Endovascular do Hospital Universitário de Londrina pós-correção endovascular de aneurisma de aorta abdominal. Todos os pacientes haviam sido submetidos à angiotomografia para acompanhamento e foram também avaliados através da radiografia abdominal (raio x simples) e da ultrassonografia vascular.ResultadosForam analisados 30 pacientes, com média de idade de 73 anos, com diâmetro médio do aneurisma de 6 cm, detectando-se quatro vazamentos endovasculares. Na avaliação desses vazamentos endovasculares, a ultrassonografia vascular obteve uma sensibilidade de 75% e uma especificidade de 96%, em relação à angiotomografia.ConclusãoA ultrassonografia vascular é um excelente método primário na avaliação e no acompanhamento pós-cirúrgico de pacientes submetidos à correção endovascular do aneurisma da aorta abdominal (AAA). No entanto, em caso de alteração ultrassonográfica ou dificuldade na realização do exame, uma investigação mais específica deve ser realizada para confirmação diagnóstica.

Palavras-chave

Aneurisma aórtico, ultrassonografia, vazamento endovascular

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