The sizes of internal jugular veins in Turkish children aged between 7 and 12 years

Yıldırım, İsa; Yüksel, Mürvet; Okur, Nazan; Okur, Erdoğan; Kýliç, M.Akif

doi:10.1016/j.ijporl.2004.04.004

Cited by 16 publications

(10 citation statements)

References 19 publications

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“…However, contrasting data have been reported regarding the asymmetry of the IJV in human beings [40,4142]. Indeed, some studies have reported that right-side IJV dimensions were greater than left-side dimensions [35][36][37]. In contrast, in other studies, diameters did not differ at rest, whereas significant differences were observed in children during the Valsalva manoeuvre [34,38].…”

Section: Discussionmentioning

confidence: 97%

Ultrasonographic assessment of normal jugular veins in Standardbred horses

et al. 2019

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Background: Ultrasonography (US) is the recommended imaging technique to evaluate jugular veins. This prospective randomized clinical study was designed to collect a series of B-mode US measurements of manually distended jugular veins in healthy Italian Standardbreds and to find possible correlations between ultrasound measurements and animal morphometric characteristics. Forty-two horses, eight males and 34 females (range 3-22 years; bodyweight 494.4 ± 41.7 kg), were included in the study. The diameters and wall thicknesses of both jugular veins were measured at three different sites of the neck. The differences in ultrasound measurements based on scans, age, gender, side, and site of the neck were evaluated by ANOVA or by the Kruskal-Wallis test. The effects of the morphometric measures on each ultrasound parameter were evaluated by MANOVA (P < 0.05). Results: The ultrasound measurements did not differ significantly between the three different sites or between genders; hence, they were pooled together in the results. On the transverse scan, the mean dorsoventral and lateromedial diameters were 1.58 ± 0.23 and 2.20 ± 0.25 cm, respectively; the mean superficial and deep wall thicknesses (SWT and DWT) were 0.07 ± 0.01 and 0.08 ± 0.01 cm, respectively. On the longitudinal scan, the mean dorsoventral diameter was 1.59 ± 0.26 cm, and the SWT and DWT were both 0.08 ± 0.01 cm. Neck length, from the caudal edge of the mandible to the thoracic inlet, was related to the dorsoventral diameter in both longitudinal and transverse scan and to the SWT and DWT in transverse scan, whereas height at the withers (measured with tape) and estimated weight were related to the wall thickness. Dividing the subjects into groups by age in years ("young" 3-7, "mature" 8-14, "old" > 14), differences were found for the lateromedial diameter in the transverse scan and the SWT on the longitudinal scan. The main limitation of this study was that only one operator performed the measurements. Conclusion: The US measurements of the jugular veins and their relationship with morphometric measures reported in this manuscript might be considered as guidelines both for early diagnosis and monitoring jugular vein abnormalities in healthy Italian Standardbred horses.

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Section: Discussionmentioning

confidence: 97%

Ultrasonographic assessment of normal jugular veins in Standardbred horses

et al. 2019

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“…The Valsalva manoeuvre increases intrathoracic pressure and thus increases RIJV diameter and area. 4 – 7 However, the maneuver is not perfect —it can lead to haemodynamic instability, arterial rupture and local haematoma. Hypotension, bradycardia and other complications can be observed at pressures exceeding 20 cm H 2 O.…”

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confidence: 99%

Comparison of the Trendelenburg position versus upper-limb tourniquet on internal jugular vein diameter

Karaaslan

Gökay

Karakaya

et al. 2017

Annals of Saudi Medicine

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BACKGROUNDCentral venous cannulation is a necessary invasive procedure for fluid management, haemodynamic monitoring and vasoactive drug therapy. The right internal jugular vein (RIJV) is the preferred site. Enlargement of the jugular vein area facilitates catheterization and reduces complication rates. Common methods to enlarge the RIJV cross-sectional area are the Trendelenburg position and the Valsalva maneuver.OBJECTIVECompare the Trendelenburg position with upper-extremity venous return blockage using the tourniquet technique.DESIGNProspective clinical study.SETTINGUniversity hospital.SUBJECTS AND METHODSHealthy adult volunteers (American Society of Anesthesiologists class I) aged 18–45 years were included in the study. The first measurement was made when the volunteers were in the supine position. The RIJV diameter and cross-sectional area were measured from the apex of the triangle formed by the clavicle and the two ends of the sternocleidomastoid muscle, which is used for the conventional approach. The second measurement was performed in a 20° Trendelenburg position. After the drainage of the veins using an Esbach bandage both arms were cuffed. The third measurement was made when tourniquets were inflated.MAIN OUTCOME MEASURE(S)Hemodynamic measurements and RIJV dimensions.RESULTSIn 65 volunteers the diameter and cross-sectional area of the RIJV were significantly widened in both Trendelenburg and tourniquet measurements compared with the supine position (P<.001 for both measures). Measurements using the upper extremity tourniquet were significantly larger than Trendelenburg measurements (P=.002 and <.001 for cross-sectional area and diameter, respectively).CONCLUSIONChannelling of the upper-extremity venous return to the jugular vein was significantly superior when compared with the Trendelenburg position and the supine position.LIMITATIONSNo catheterization and study limited to healthy volunteers.

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“…Studies showed that Valsalva maneuver increases the intrathoracic pressure, which then increases the diameter of the IJV. [ 9 10 ] With change of head position, change of IJV relation from lateral to anterolateral and anterolateral to anterior, increases overlap over CA and increases chance of carotid puncture.…”

Section: Discussionmentioning

confidence: 99%