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Variations in the anatomical relationship between the common carotid artery and the internal jugular vein: an ultrasonographic study.

Umaña M, García A, Bustamante L, Castillo JL, Sebastián Martínez J - Colomb. Med. (2015)

Bottom Line: To identify variables associated with the anterior location of the internal jugular vein.The multivariate analysis identified age group (OR= 3.7, 95% CI 2.1-6.4) and, less significantly, the left side (OR= 1.7, 95%CI= 0.8-3.5) and male gender (OR= 1.2, 95%CI= 0.6-2.7) as variables associated with the anterior position of the vein.Abstract available from the publisher.

View Article: PubMed Central - PubMed

Affiliation: Emergency Physician. Intensive Care Fellow, Universidad del Valle, Fundación Valle del Lili, Cali, Valle, Colombia.

ABSTRACT

Introduction: The internal jugular vein locates anterior or anterolateral to the common carotid artery in two-thirds of the subjects studied by ultrasound when the head is in a rotated position.

Aim: To identify variables associated with the anterior location of the internal jugular vein.

Methods: Ultrasound examinations were performed with the patients in the supine position, with the head rotated to the opposite side. The proximal third of the neck was visualized transversely with a 7.5-mHz transducer. The relationship between the vessels was described in accordance with the proportion of the artery overlapped by the vein. Univariate comparisons and a multivariate analysis of potential variables that may affect the anatomic relationships were performed.

Results: Seventy-eight patients were included, 44 of whom were men. The patients' ages ranged from 17 to 90 years (median 64.0, interquartile range 41-73). The right and left sides were studied 75 and 73 times, respectively. The vein was located lateral to the artery in 24.3% (95%CI= 17.4-32.2) of the studies, anterolateral in 33.8% (95%CI= 26.2-41.4) and anterior in 41.9% (95%CI= 33.9-49.8). The multivariate analysis identified age group (OR= 3.7, 95% CI 2.1-6.4) and, less significantly, the left side (OR= 1.7, 95%CI= 0.8-3.5) and male gender (OR= 1.2, 95%CI= 0.6-2.7) as variables associated with the anterior position of the vein.

Conclusión: The anterior position of the internal jugular vein relative to the common carotid artery increases gradually with age. Additionally, left-sided localization and male sex further increased the probability of an anterior position.

No MeSH data available.


Examples of different magnitudes of overlap. A. Anterior: The vein covers completely the artery. B. Antero-lateral: The vein covers to 50% of the artery. C. Lateral: The vein is located lateral to the artery.
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f03: Examples of different magnitudes of overlap. A. Anterior: The vein covers completely the artery. B. Antero-lateral: The vein covers to 50% of the artery. C. Lateral: The vein is located lateral to the artery.

Mentions: The relationship between the vessels was described according to the proportion of the artery overlapped by the vein (Fig. 3), consistent with the results reported by other authors 9,15,18-22. This method of describing the relationship between vascular structures was chosen instead of those describing the proportion of overlap in degrees 10,17 or the magnitude of overlap or separation 23.


Variations in the anatomical relationship between the common carotid artery and the internal jugular vein: an ultrasonographic study.

Umaña M, García A, Bustamante L, Castillo JL, Sebastián Martínez J - Colomb. Med. (2015)

Examples of different magnitudes of overlap. A. Anterior: The vein covers completely the artery. B. Antero-lateral: The vein covers to 50% of the artery. C. Lateral: The vein is located lateral to the artery.
© Copyright Policy - open-access
Related In: Results  -  Collection

License
Show All Figures
getmorefigures.php?uid=PMC4536815&req=5

f03: Examples of different magnitudes of overlap. A. Anterior: The vein covers completely the artery. B. Antero-lateral: The vein covers to 50% of the artery. C. Lateral: The vein is located lateral to the artery.
Mentions: The relationship between the vessels was described according to the proportion of the artery overlapped by the vein (Fig. 3), consistent with the results reported by other authors 9,15,18-22. This method of describing the relationship between vascular structures was chosen instead of those describing the proportion of overlap in degrees 10,17 or the magnitude of overlap or separation 23.

Bottom Line: To identify variables associated with the anterior location of the internal jugular vein.The multivariate analysis identified age group (OR= 3.7, 95% CI 2.1-6.4) and, less significantly, the left side (OR= 1.7, 95%CI= 0.8-3.5) and male gender (OR= 1.2, 95%CI= 0.6-2.7) as variables associated with the anterior position of the vein.Abstract available from the publisher.

View Article: PubMed Central - PubMed

Affiliation: Emergency Physician. Intensive Care Fellow, Universidad del Valle, Fundación Valle del Lili, Cali, Valle, Colombia.

ABSTRACT

Introduction: The internal jugular vein locates anterior or anterolateral to the common carotid artery in two-thirds of the subjects studied by ultrasound when the head is in a rotated position.

Aim: To identify variables associated with the anterior location of the internal jugular vein.

Methods: Ultrasound examinations were performed with the patients in the supine position, with the head rotated to the opposite side. The proximal third of the neck was visualized transversely with a 7.5-mHz transducer. The relationship between the vessels was described in accordance with the proportion of the artery overlapped by the vein. Univariate comparisons and a multivariate analysis of potential variables that may affect the anatomic relationships were performed.

Results: Seventy-eight patients were included, 44 of whom were men. The patients' ages ranged from 17 to 90 years (median 64.0, interquartile range 41-73). The right and left sides were studied 75 and 73 times, respectively. The vein was located lateral to the artery in 24.3% (95%CI= 17.4-32.2) of the studies, anterolateral in 33.8% (95%CI= 26.2-41.4) and anterior in 41.9% (95%CI= 33.9-49.8). The multivariate analysis identified age group (OR= 3.7, 95% CI 2.1-6.4) and, less significantly, the left side (OR= 1.7, 95%CI= 0.8-3.5) and male gender (OR= 1.2, 95%CI= 0.6-2.7) as variables associated with the anterior position of the vein.

Conclusión: The anterior position of the internal jugular vein relative to the common carotid artery increases gradually with age. Additionally, left-sided localization and male sex further increased the probability of an anterior position.

No MeSH data available.