Evaluation with Doppler vascular ultrasound in postoperative endovascular treatment of abdominal aortic aneurysm: a prospective comparative study with angiotomography / Ecocardiografia vascular com Doppler na avaliação pós-operatória do tratamento endovascular de aneurisma da aorta adominal: estudo propspectivo comparativo com a angiotomografia
J. vasc. bras
; 12(2): 102-109, jun. 2013. tab, graf
Artigo
em Inglês
| LILACS
| ID: lil-687327
Biblioteca responsável:
BR44.1
ABSTRACT
BACKGROUND:Diagnosis of abdominal aortic aneurysm (AAA) is usually incidental, and surgical treatment, when indicated, may be open or endovascular. The drawbacks of computed angiotomography (CTA) and the advantages of Doppler ultrasonography have led to the development of alternative follow-up protocols, comparing the two methods. OBJECTIVE: To determine validity indices for Doppler ultrasonography and to correlate them with CTA results in a group of patients who had undergone elective endovascular treatment of AAAs. MATERIAL AND METHODS: Thirty-three patients were selected. The following three items were evaluated: 1) presence or absence of endoleak; 2) presence of blood flow in the aortoiliac segment; and 3) maximum AAA diameter. RESULTS: For the detection of endoleak, Doppler ultrasonography showed a sensitivity of 54.5%, a specificity of 92.8%, a positive predictive value of 85.7%, a negative predictive value of 92.8%, and an overall accuracy of 76%. For the evaluation of blood flow in the aortoiliac segment, values were 100, 97.8, 80, 97.8, and 98%, respectively. Maximum AAA diameter was similarly measured by both methods, with statistically significant differences (mean difference: 1.98 mm). Pearson's correlation coefficient was 0.97, showing that Doppler ultrasonography and CTA yielded similar results. CONCLUSION: Doppler ultrasonography showed good validity indices and a moderate correlation with CTA in the postoperative evaluation of patients undergoing endovascular treatment of AAAs. .
Texto completo:
Disponível
Coleções:
Bases de dados internacionais
Base de dados:
LILACS
Assunto principal:
Aneurisma da Aorta Abdominal
Tipo de estudo:
Guia de prática clínica
/
Estudo observacional
/
Estudo prognóstico
/
Fatores de risco
Limite:
Humanos
Idioma:
Inglês
Revista:
J. vasc. bras
Assunto da revista:
Cardiologia
Ano de publicação:
2013
Tipo de documento:
Artigo
País de afiliação:
Brasil
Instituição/País de afiliação:
Clínica DAPI/BR
/
Clínicas Áurea/BR
/
Colégio Brasileiro de Cirurgiões/BR
/
Hospital Nossa senhora das Graças/BR
/
Universidade Estadual do Oeste do Paraná/BR
/
Universidade Federal do Paraná/BR