Jornal Vascular Brasileiro
https://www.jvascbras.org/article/doi/10.1590/1677-5449.200073
Jornal Vascular Brasileiro
Original Article

Sexo e idade e sua influência sobre a anatomia da aorta abdominal e seus ramos

Age and sex and their influence on the anatomy of the abdominal aorta and its branches

Adenauer Marinho de Oliveira Góes Junior; Flávia Beatriz Araújo de Albuquerque; Fernanda Acatauassú Beckmann; Fernanda Vieira Centeno; Mariseth Carvalho de Andrade; Waldonio de Brito Vieira

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Resumo

Resumo: Contexto: Não se sabe ao certo como a idade e o sexo do paciente influenciam na anatomia da aorta abdominal e de seus ramos.

Objetivos: Determinar os padrões anatômicos (diâmetro e angulações) mais frequentes da aorta abdominal e de seus ramos e a influência do sexo e da idade dos pacientes sobre esses padrões.

Métodos: Foram avaliadas tomografias computadorizadas de abdome com contraste endovenoso de 157 pacientes. Foram aferidos calibre e angulação de artérias abdominais em indivíduos de ambos os sexos, agrupados em cinco faixas etárias: 20 a 30 anos, 31 a 40 anos, 41 a 50 anos, 51 a 60 anos e 61 a 70 anos. Foram analisadas 18 variáveis: seis ângulos de emergências arteriais, nove diâmetros arteriais, taxas de dilatação, sexo e faixa etária. Para a obtenção das medidas, utilizou-se o programa de computador RadiAnt 4.2.1 DICOM viewer (Medixant, Poznan, Polônia).

Resultados: Entre as 157 tomografias, 69 eram de homens e 88, de mulheres. Apresentaram diferença estatística (p < 0,05): ângulo de origem e diâmetro da artéria mesentérica superior; ângulo e diâmetro das artérias renais; diâmetro das artérias ilíacas comuns; diâmetro e taxa de dilatação em diversos segmentos da aorta, exceto na porção proximal ao tronco celíaco.

Conclusões: Os diâmetros da aorta (em diversos segmentos) e de seus ramos (exceto da artéria renal esquerda) aumentam progressivamente com o passar da idade em ambos os sexos e são maiores e possuem taxa de dilatação mais elevada em homens do que em mulheres da mesma faixa etária. Entre os sexos, o ângulo de emergência da artéria mesentérica superior foi maior em homens, exceto entre 20 e 30 anos; o ângulo de origem da artéria renal esquerda foi maior em mulheres entre 51 e 60 anos.

Palavras-chave

envelhecimento, remodelação, tomografia, anatomia, artérias

Abstract

Background: It is not clear how patients’ age and sex influence the anatomy of the aorta and its branches. Objectives: To determine the most frequent anatomical patterns of diameter and angulation of the abdominal aorta and its branches and the influence of patients’ sex and age on these patterns. Methods: CT scans with intravenous contrast from 157 patients were analyzed. Diameter and angulations of the abdominal aorta and its branches were measured in individuals of both sexes, classified into five age groups: 20 to 30 years, 31 to 40 years, 41 to 50 years, 51 to 60 years, and 61 to 70 years. Eighteen variables were analyzed: 6 arterial origin angles, 9 arterial diameters, rate of diameter enlargement, and patient’s sex and age. RadiAnt 4.2.1 DICOM viewer software was used for measurements. Results: The total of 157 CT scans were from 69 men and 88 women. There were statistical differences (p <0.05) in the following results: angle of origin and diameter of the superior mesenteric artery; renal artery angle and diameter; diameter of the common iliac arteries, and diameter and rate of diameter enlargement of the aorta in several segments, but not the segment immediately proximal to the celiac trunk. Conclusions: The diameters of several aorta segments and of its branches (except the left renal artery) increase progressively with age in both sexes and are larger and have a higher rate of diameter enlargement in men than in women in the same age ranges. Between sexes, the angle of origin of the superior mesenteric artery was larger in men, except between 20 and 30 years, and the angle of origin of the left renal artery was larger in women between 51 and 60 years old.

Keywords

aging; remodeling; tomography; anatomy; arteries.

References

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Submitted date:
06/01/2020

Accepted date:
08/12/2020

5fcf78870e882566544ac228 jvb Articles

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