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Vol. 56. Núm. 3.
Páginas 215-226 (Enero 2004)
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Vol. 56. Núm. 3.
Páginas 215-226 (Enero 2004)
Acceso a texto completo
Variabilidad del cuello aórtico y cuerpo protésico a largo plazo, tras la resección de un aneurisma de aorta abdominal infrarrenal
Long term variability of the aortic neck and graft body following resection of an infrarenal abdominal aorta aneurysm
Variabilidade do diâmetro aórtico e do corpo protésico a longo prazo, após a ressecção de um aneurisma da aorta abdominal infra-renal
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2330
A. Barba-Vélez
Autor para correspondencia
abarba@hgda.osakidetza.net

Correspondencia: Servicio de Angiología y Cirugía Vascular. Hospital de Galda-kao. Barrio Labeaga, s/n. E-48960 Usansolo-Galda-kao (Bizkaia).
, L. Estallo-Laliena, L. Rodríguez-González, S. Gimena-Funes, M. Baquer-Miravete
Servicio de Angiología y Cirugía Vascular. Hospital de Galdakao. Bizkaia, España.
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Información del artículo
Resumen
Objetivo

Estudiar la variación a largo plazo del diámetro de la aorta supra-anastomótica (ASA) y del cuerpo protésico (CP) implantado tras la resección de un aneurisma de aorta abdominal infrarrenal (AAA).

Pacientes y métodos.

Se estudiaron 91 pacientes, a los que se les realizó una resección de un AAA hasta diciembre de 1997. Se midió con TAC (tomografía axial computarizada) preoperatoriamente el diámetro de la aorta infrarrenal distal a la arteria renal más baja. Se midieron el diámetro de la ASA y del CP a los 5, 10 y 15 años de la intervención. Se estudiaron los factores de riesgo que influyen habitualmente en el crecimiento aórtico.

Resultados

La edad media al intervenirse fue de 67 años, y eran varones 90 (98,9%). El tiempo de seguimiento medio fue de 99,1 meses (r =60-185); el diámetro aórtico preoperatorio (DAP) medio de 24,2mm (r =18-30), las prótesis implantadas tuvieron un diámetro medio de 16,4mm (r =14-20). A los 5, 10 y 15 años, la aorta yuxtaanastomótica presentó un crecimiento medio de 4,6 (r =0-22), 6,6 (r =0-25) y 11,8mm (r =2-22), respectivamente. Sólo el DAP influyó de forma significativa en el crecimiento aórtico. Las prótesis tuvieron un crecimiento medio a los 5, 10 y 15 años de 6,2mm (r =0-21), 7,1mm (r =0-25) y 13,2mm (r =3-15), respectivamente. No encontramos ningún factor que interviniese de forma significativa en el crecimiento del CP.

Conclusión

En este estudio sólo el DAP interviene de forma significativamente en el crecimiento aórtico tras la resección quirúrgica.

Palabras clave:
Aneurisma de aorta abdominal
Seguimiento posquirúrgico a largo plazo
Variación del diámetro aórtico yuxtaanasto-mótico y cuerpo protésico
Summary
Aims

The aim of this work was to study the long term variation in the diameter of the supra-anastomotic aorta (SAA) and of the graft body (GB) implanted after the resection of an infrarenal abdominal aorta aneurysm (AAA).

Patients and methods

The study examined 91 patients who had been submitted to a resection of the AAA before December 1997. The diameter of the infrarenal aorta that was distal to the lowest renal artery was measured by means of a CAT (computerised axial tomography) scan prior to the operation. The diameter of the SAA and the GB were measured at 5, 10 and 15years after the intervention. The risk factors that usually influence aortic growth were also studied.

Results

The mean age at the time of the intervention was 67 years, and 90 of the patients were males (98.9%). Mean follow-up time was 99.1 months (r =60-185); mean pre-operative aortic diameter (PAD) was 24.2mm (r =18-30) and the grafts that were implanted had a mean diameter of 16.4mm (r =14-20). At 5, 10 and 15 years, the juxta-anastomotic aorta presented a mean growth of 4.6 (r =0-22), 6.6 (r =0-25) and 11.8mm (r =2-22), respectively. Only the PAD exerted a significant influence on aortic growth. The grafts had a mean growth at 5, 10 and 15 years of 6.2mm (r =0-21), 7.1mm (r =0-25) and 13.1mm (r =3-15), respectively. No factor was found that played a significant role in the growth of the GB.

Conclusions

In this study only the PAD intervened to any significant extent in aortic growth following surgical resection.

Key words:
Abdominal aortic aneurysm
Long term post-surgical follow-up
Variation in the diameter of the juxta-anastomotic aorta and graft body
Resumo
Objectivo

Estudar a variação a longo prazo do diâmetro da aorta supra-anastomótica (ASA) e do corpo protésico (CP) implantado após a dissecção de um aneurisma da aorta abdominal infra-renal (AAA).

Doentes e métodos

Foram estudados 91 doentes, submetidos a uma dissecção de um AAA até Dezembro de 1997. Mediu-se, préoperatoriamente, por TAC (tomografia axial computorizada) o diâmetro da aorta infrarenal distal à artéria renal mais baixa. Foram medidos o diâmetro da ASA e do CP aos 5, 10 e 15 anos após a intervenção. Foram estudados os factores de risco que influem habitualmente no crescimento aórtico.

Resultados

A idade média dos pacientes intervencionados é de 67 anos, e 90 eram do sexo masculino (98,9%). O tempo de seguimento médio foi de 99,1 meses ( r =60-185); o diâmetro aórtico pré-operatório (DAP) médio de 24,2mm (r =18-30), as próteses implantadas tinham um diâmetro médio de 16,4mm (r =14-20). Aos 5, 10 e 15 anos, a aorta justa-anastomótica apresentou um crescimento médio de 4,6 ( r =0-22), 6,6 (r =0-25) e 11,8mm (r =2-22), respectivamente. Só o DAP influenciou de forma significativa o crescimento aórtico. As próteses tiveram um crescimento médio aos 5, 10 e 15 anos de 6,2mm (r =0-21), 7,1mm (r =0-25) e 13,2mm (r =3-15), respectivamente. Não encontrámos nenhum factor que interviesse de forma significativa no crescimento do CP.

Conclusão

Neste estudo só o DAP intervém de forma significativa no crescimento aórtico após a ressecção cirúrgica.

Palavras chave:
Aneurisma da aorta abdominal
Seguimento pós-cirúrgico a longo prazo
Variação do diâmetro aórtico justa-anastomótico e corpo protésico
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