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Compression of left renal vein and left common iliac vein on CT scans: how often are they detected?

BACKGROUND: The nutcracker and May-Thurner syndromes are rare and, although often underdiagnosed, they can cause limiting symptoms. They are frequently considered only after exclusion of other diagnoses and there is no consensus in the literature on prevalence, incidence, or diagnostic criteria. OBJ...

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Autores principales: Góes, Adenauer Marinho de Oliveira, Araújo, Rafaela de Souza, Furlaneto, Ismari Perini, Vieira, Waldonio de Brito
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Sociedade Brasileira de Angiologia e de Cirurgia Vascular (SBACV) 2020
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8202167/
https://www.ncbi.nlm.nih.gov/pubmed/34178065
http://dx.doi.org/10.1590/1677-5449.190121
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author Góes, Adenauer Marinho de Oliveira
Araújo, Rafaela de Souza
Furlaneto, Ismari Perini
Vieira, Waldonio de Brito
author_facet Góes, Adenauer Marinho de Oliveira
Araújo, Rafaela de Souza
Furlaneto, Ismari Perini
Vieira, Waldonio de Brito
author_sort Góes, Adenauer Marinho de Oliveira
collection PubMed
description BACKGROUND: The nutcracker and May-Thurner syndromes are rare and, although often underdiagnosed, they can cause limiting symptoms. They are frequently considered only after exclusion of other diagnoses and there is no consensus in the literature on prevalence, incidence, or diagnostic criteria. OBJECTIVES: To estimate the frequency of compression of the left common iliac vein and left renal vein in CT scans of the abdomen and pelvis. METHODS: Descriptive, quantitative, cross-sectional study. The criteria used to define compression of the left renal vein were a hilar/aortomesenteric diameter ratio > 4 and aortomesenteric angle < 39° and the criterion for compression of the left common iliac vein was a diameter < 4mm. RESULTS: CT scans of 95 patients were analyzed; 61% were women and 39% were men. Left renal vein compression was observed in 24.2% of the sample, with a mean age of 48.8 years, occurring in 27.6% of the women and 18.9% of the men (p = 0.3366). Compression of the left common iliac vein was detected in 15.7% of the sample, with a mean age of 45.9 years, occurring in 24.1% of the women and 2.7% of the men (p = 0.0024). Both veins were compressed in 7.4% of the patients. CONCLUSIONS: Left renal vein compression was detected in women and men at similar frequencies, whereas left common iliac vein compression was more frequent in women. Both venous compressions were most frequently found in patients aged 41 to 50 years.
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spelling pubmed-82021672021-06-24 Compression of left renal vein and left common iliac vein on CT scans: how often are they detected? Góes, Adenauer Marinho de Oliveira Araújo, Rafaela de Souza Furlaneto, Ismari Perini Vieira, Waldonio de Brito J Vasc Bras Original Article BACKGROUND: The nutcracker and May-Thurner syndromes are rare and, although often underdiagnosed, they can cause limiting symptoms. They are frequently considered only after exclusion of other diagnoses and there is no consensus in the literature on prevalence, incidence, or diagnostic criteria. OBJECTIVES: To estimate the frequency of compression of the left common iliac vein and left renal vein in CT scans of the abdomen and pelvis. METHODS: Descriptive, quantitative, cross-sectional study. The criteria used to define compression of the left renal vein were a hilar/aortomesenteric diameter ratio > 4 and aortomesenteric angle < 39° and the criterion for compression of the left common iliac vein was a diameter < 4mm. RESULTS: CT scans of 95 patients were analyzed; 61% were women and 39% were men. Left renal vein compression was observed in 24.2% of the sample, with a mean age of 48.8 years, occurring in 27.6% of the women and 18.9% of the men (p = 0.3366). Compression of the left common iliac vein was detected in 15.7% of the sample, with a mean age of 45.9 years, occurring in 24.1% of the women and 2.7% of the men (p = 0.0024). Both veins were compressed in 7.4% of the patients. CONCLUSIONS: Left renal vein compression was detected in women and men at similar frequencies, whereas left common iliac vein compression was more frequent in women. Both venous compressions were most frequently found in patients aged 41 to 50 years. Sociedade Brasileira de Angiologia e de Cirurgia Vascular (SBACV) 2020-06-01 /pmc/articles/PMC8202167/ /pubmed/34178065 http://dx.doi.org/10.1590/1677-5449.190121 Text en https://creativecommons.org/licenses/by/4.0/This is an Open Access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
spellingShingle Original Article
Góes, Adenauer Marinho de Oliveira
Araújo, Rafaela de Souza
Furlaneto, Ismari Perini
Vieira, Waldonio de Brito
Compression of left renal vein and left common iliac vein on CT scans: how often are they detected?
title Compression of left renal vein and left common iliac vein on CT scans: how often are they detected?
title_full Compression of left renal vein and left common iliac vein on CT scans: how often are they detected?
title_fullStr Compression of left renal vein and left common iliac vein on CT scans: how often are they detected?
title_full_unstemmed Compression of left renal vein and left common iliac vein on CT scans: how often are they detected?
title_short Compression of left renal vein and left common iliac vein on CT scans: how often are they detected?
title_sort compression of left renal vein and left common iliac vein on ct scans: how often are they detected?
topic Original Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8202167/
https://www.ncbi.nlm.nih.gov/pubmed/34178065
http://dx.doi.org/10.1590/1677-5449.190121
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