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Trombo mural en endoprótesis aórticas abdominales: factores predictivos y evolución clínica / Mural thrombus in abdominal aortic endograft: Predictive factors and clinical progress
Calvín, P; Botas, M; Canto, P del; Vicente, M; Zanabili, AA; Álvarez, LJ.
Affiliation
  • Calvín, P; Hospital de Cabueñes. Gijón. España
  • Botas, M; Hospital de Cabueñes. Gijón. España
  • Canto, P del; Hospital de Cabueñes. Gijón. España
  • Vicente, M; Hospital de Cabueñes. Gijón. España
  • Zanabili, AA; Hospital de Cabueñes. Gijón. España
  • Álvarez, LJ; Hospital de Cabueñes. Gijón. España
Angiología ; 66(2): 58-63, mar.-abr. 2014. tab, ilus, graf
Article in Spanish | IBECS | ID: ibc-121885
Responsible library: ES1.1
Localization: BNCS
RESUMEN

INTRODUCCIÓN:

El incremento del tratamiento endovascular en aneurismas de aorta abdominal ha dado lugar a nuevas complicaciones, como la formación de trombo intraprótesis, cuya aparición no está exenta de riesgos.

OBJETIVOS:

Conocer la incidencia de trombo mural, su evolución clínica y determinar qué factores pueden influir directamente en su desarrollo. MATERIAL Y

MÉTODOS:

Revisamos retrospectivamente (julio 2006-octubre 2011) pacientes con reparación endovascular de aneurismas de aorta abdominal y seguimiento por angiografía tomográfica computarizada superior a 6 meses. Estudiamos la aparición de trombo mural en relación con características de la endoprótesis (tipo, material, longitud, ratio [R2 / (r12 + r22)] y permeabilidad de las arterias iliacas internas) mediante tablas de contingencia, ANOVA de un factor y regresión logística.

RESULTADOS:

Recogimos 63 casos con seguimiento medio de 17,43 meses. La incidencia de trombo mural fue de 22,2% (14), de los cuales el 78,6% (11) se desarrollaron durante el primer mes y el 21,4% (3) en los 6 siguientes. Observamos mayor incidencia para Excluder(R) (7 de 18 [28%]) y Zenith(R) (5 de 8 [62,5%]) (p = 0,010), siendo la ratio el único factor predictivo de formación de trombo, tanto en el análisis bivariante (p = 0,001; intervalo de confianza del 95% 0,392-1,453) como en la regresión logística (p = 0,021; odds ratio 3,424; intervalo de confianza del 95% [1,205-9,727]). En ningún caso hubo regresión de trombo. Solamente uno evolucionó a trombosis de rama a 17 meses de seguimiento, no precisando intervención adicional.

CONCLUSIONES:

El trombo mural intraprotésico es un hallazgo frecuente tras reparación endovascular en aneurismas de aorta abdominal, asociándose más a algunos tipos de endoprótesis. Hallar una discordancia importante de áreas puede ser útil como factor predictivo. En caso de detección precoz de trombo, recomendamos seguimiento más exhaustivo mediante angiografía tomográfica computarizada
ABSTRACT

INTRODUCTION:

The increase in endovascular treatment of abdominal aortic aneurysms has led to seeing more complications, such as intraprosthesis thrombus formation, which is not without risk.

OBJECTIVES:

To determine the incidence of mural thrombus and the clinical course, and the factors that can directly influence its development. MATERIAL AND

METHODS:

A retrospective review (July 2006-October 2011) was conducted on patients with endovascular repair of abdominal aortic aneurysms, who were monitored with computed tomographic angiography for more than 6 months. A study was made of the appearance of mural thrombus in relation to the endograft characteristics (type, material, length, ratio [R2 / (r12 + r22)] and internal iliac artery patency) using contingency tables, ANOVA test, and logistic regression.

RESULTS:

A total of 63 cases were found, with an average follow-up of 17.43 months. The incidence of mural thrombus recorded was 22.2% (14), of which 78.6% (11) developed in the first month, and 21.4% (3) in the following 6 months. There was a higher incidence with Excluder(R) (7 of 18 [28%]) and Zenith(R) (5 of 8 [62.5%]) (P = 0.010), being the ratio the only predictor of thrombus formation, in both bivariate analysis (P =0.001; 95% confidence interval from 0.392 to 1.453) and logistic regression (P = 0.021; odds ratio 3.424; 95% CI 1.205 to 9.727). There were no cases of thrombus recurrence. Only one case progressed to branch thrombosis in 17 months of follow-up, which did not require additional intervention.

CONCLUSIONS:

Intra-prosthetic mural thrombus is commonly found after endovascular abdominal aortic aneurysms repair, being more associated to other types of endografts. Finding a major discrepancy area may be useful as a predictor. For early detection of thrombus, we recommend a closer monitoring with computed tomographic angiography
Subject(s)

Full text: Available Collection: National databases / Spain Database: IBECS Main subject: Aortic Aneurysm, Abdominal / Endovascular Procedures / Graft Occlusion, Vascular Type of study: Etiology study / Observational study / Prognostic study / Risk factors / Screening study Limits: Humans Language: Spanish Journal: Angiología Year: 2014 Document type: Article Institution/Affiliation country: Hospital de Cabueñes/España

Full text: Available Collection: National databases / Spain Database: IBECS Main subject: Aortic Aneurysm, Abdominal / Endovascular Procedures / Graft Occlusion, Vascular Type of study: Etiology study / Observational study / Prognostic study / Risk factors / Screening study Limits: Humans Language: Spanish Journal: Angiología Year: 2014 Document type: Article Institution/Affiliation country: Hospital de Cabueñes/España
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