-
BMC Anesthesiology Jun 2022Internal jugular vein catheterization is widely used in clinical practice, and there are many related studies on internal jugular vein catheterization. However, the...
BACKGROUND
Internal jugular vein catheterization is widely used in clinical practice, and there are many related studies on internal jugular vein catheterization. However, the omohyoid muscle, which is adjacent to the internal jugular vein, is a rarely mentioned muscle of the infrahyoid muscles group. The purpose of this study is to explore the anatomical relationship between the omohyoid muscle and the internal jugular vein on ultrasound guidance and provide a theoretical reference for jugular puncture and catheterization.
METHODS
The study included 30 volunteers. The volunteer's head lay in the neutral position and was then turned to the left at an angle of 30°, 45° and 60° with the bed surface, as verified using an adjustable protractor. A high-frequency ultrasound probe (6-14 Hz) was used to examine the plane of the apex of sternocleidomastoid triangle (PAST), the triangle consists of anatomical landmarks: a base was clavicle, its sides - heads of sternocleidomastoid muscle. And the plane of the middle of sternocleidomastoid triangle(PMST) which was a horizontal line, connecting midpoints of both sides. The right omohyoid muscle (OM) and the right internal jugular vein (IJV) were observed and recorded for statistical analysis.
RESULTS
There were statistically significant differences in the number of overlapping cases of OM and IJV at each head rotation angle between the PAST and PMST groups. There were statistically significant differences between the angles which OM and IJV centre point line and the left horizontal position of the PAST and PMST at different body angles.
CONCLUSION
The traditional middle route puncture point is the apex of the sternocleidomastoid triangle, which can effectively avoid injury to the omohyoid muscle, to an extent.
TRAIL REGISTRATION
ChiCTR2000034233 , Registered 29/06/2020. www. Chinese Clinical Trial Registry.gov.
Topics: Catheterization, Central Venous; Head; Humans; Jugular Veins; Muscles; Neck Muscles; Ultrasonography
PubMed: 35698062
DOI: 10.1186/s12871-022-01723-4 -
Journal of Applied Physiology... Feb 2023Altered gravity affects hemodynamics and blood flow in the neck. At least one incidence of jugular venous thrombosis has been reported in an astronaut on the...
Altered gravity affects hemodynamics and blood flow in the neck. At least one incidence of jugular venous thrombosis has been reported in an astronaut on the International Space Station. This investigation explores the impact of changes in the direction of the gravitational vector on the characteristics of the neck arteries and veins. Twelve subjects underwent graded tilt from 45° head-up to 45° head-down in 15° increments in both supine and prone positions. At each angle, the cross-sectional area of the left and right common carotid arteries (A) and internal jugular veins (A) were measured by ultrasound. Internal jugular venous pressure (IJVP) was also measured by compression sonography. Gravitational dose-response curves were generated from experimental data. A did not show any gravitational dependence. Conversely, both A and IJVP increased in a nonlinear fashion with head-down tilt. A was significantly larger on the right side than the left side at all tilt angles. In addition, IJVP was significantly elevated in the prone position compared with the supine position, most likely because of raised intrathoracic pressure while prone. Dose-response curves were compared with existing experimental data from parabolic flight and spaceflight studies, showing good agreement on an acute timescale. The quantification of jugular hemodynamics as a function of changes in the gravitational vector presented here provides a terrestrial model to reference spaceflight-induced changes, contributes to the assessment of the pathogenesis of spaceflight venous thromboembolism events, and informs the development of countermeasures. Flow stasis and thrombosis have been identified in the jugular vein during spaceflight. We measured the area and pressure of the internal jugular vein and the area of the common carotid artery in graded head-up and head-down tilt. Experimental data are used to generate gravitational dose-response curves for the measured variables, demonstrating that jugular vein area and pressure exhibit a nonlinear response to altered gravity. Gravitational dose-response curves show good agreement with spaceflight and parabolic flight studies.
Topics: Humans; Head-Down Tilt; Space Flight; Hemodynamics; Astronauts; Patient Positioning; Jugular Veins
PubMed: 36476158
DOI: 10.1152/japplphysiol.00248.2022 -
Indian Pediatrics Jan 2023We retrieved data of ultrasound-guided neonatal internal jugular vein (IJV) cannulations done between November, 2020 and March, 2021. Of the 33 ultrasound-guided IJV...
We retrieved data of ultrasound-guided neonatal internal jugular vein (IJV) cannulations done between November, 2020 and March, 2021. Of the 33 ultrasound-guided IJV cannulation in neonates, 32 were successful with overall success rate of 97%. Median (IQR) number of attempts per insertion was 2 (1,3.5). There were no major complications observed during the insertion of the catheter. In one instance, inadvertent carotid artery puncture was encountered, without significant bleeding.
Topics: Infant, Newborn; Humans; Catheterization, Central Venous; Jugular Veins; Neonatologists; Ultrasonography, Interventional; Prospective Studies
PubMed: 36639975
DOI: 10.1007/s13312-023-2700-0 -
CNS Neuroscience & Therapeutics Nov 2022Differentiating between acquired stenosis (pathologic) and anatomical slenderness (physiologic) of internal jugular vein (IJV) remain ambiguous. Herein, we aimed to...
BACKGROUND AND PURPOSES
Differentiating between acquired stenosis (pathologic) and anatomical slenderness (physiologic) of internal jugular vein (IJV) remain ambiguous. Herein, we aimed to compare the similarities and differences between the two entities.
METHODS
Patients who underwent head and neck computer tomography (CT) and brain magnetic resonance imaging (MRI) were enrolled in this case-control study from January 2016 through October 2021.
RESULTS
1487 eligible patients entered final analysis totally. 803 patients had bilateral IJVs imaging without IJV stenosis-related symptoms and presented in three ways: right IJV slenderness (10.5%, n = 85), left IJV slenderness (48.4%, n = 388), and symmetric IJVs (41.1%, n = 330). In patients with asymmetric IJVs, their bilateral jugular foramina were also asymmetric. All involved asymmetric IJVs presented as slenderness without surrounding abnormal collaterals and credible cloudy-like white matter hyper-intensity (WMH). Their cerebral arterial perfusion statuses on brain MR-PWI maps were normal. In contrast, the major patients with IJV stenosis presented with signs and symptoms such as headaches, head noise, etc. In CE-MRV maps, local stenosis of the IJV was surrounded by abnormal venous collaterals in contrast to the lack of abnormal venous collaterals for patients with IJV slenderness. And in CTV maps, the caliber of jugular foramina was mismatched with the transverse diameter of IJV. Moreover, in MRI maps of most of these patients, a cloudy-like WMHs were distributed symmetrically in bilateral periventricular and/or centrum semi vales. These patients also had symmetrical cerebral arterial hypo-perfusion. Seven patients underwent stenting of the IJV stenosis correction, their WMHs attenuated or disappeared subsequently.
CONCLUSIONS
Imaging features in addition to clinical symptoms can be used to differentiate between physiologic IJV slenderness and pathologic IJV stenosis. Notable imagine-defining features for IJV stenosis include local stenosis surrounded by abnormal venous collaterals, cloudy-like WMHs, and mismatch between the transverse diameter of IJV and the caliber of the jugular foramina.
Topics: Case-Control Studies; Constriction, Pathologic; Humans; Jugular Veins; Magnetic Resonance Imaging; Neck
PubMed: 35919952
DOI: 10.1111/cns.13924 -
Medicina (Kaunas, Lithuania) Mar 2020There is a paucity of research on the shape of internal jugular vein (IJV) and their association with an individual's morphology and various chronic diseases.... (Comparative Study)
Comparative Study
There is a paucity of research on the shape of internal jugular vein (IJV) and their association with an individual's morphology and various chronic diseases. Therefore, this study aimed to analyze the anatomy of the IJV across various patients and to relate the differences in anatomy to basic patient characteristics. This retrospective study included a total of 313 patients who underwent contrast-enhanced neck computed tomography between January 2017 and December 2018. The circumferences of the right and left IJVs were measured at three locations (hyoid bone, cricoid cartilage, and first thoracic vertebra) and parameters affecting the size of the IJV were analyzed. The right IJV was significantly larger than the left IJV at each position ( < 0.001), and the area of the lumen was the largest at the cricoid cartilage level ( < 0.001). After dividing the right IJV data into two groups (above and below the median area), multivariate logistic regression analysis showed that age (odds ratio (OR) 1.040; 95% confidence interval (CI) 1.022-1.058, < 0.001) and body mass index (BMI, OR 1.080; 95% CI 1.011-1.154, = 0.0.23) affected size. The right IJV is larger than the left and has a rhomboid morphology. Age and BMI are significant factors affecting the IJV size.
Topics: Age Factors; Aged; Body Mass Index; Catheterization, Central Venous; Contrast Media; Female; Humans; Jugular Veins; Male; Neck; Observational Studies as Topic; Retrospective Studies; Tomography, X-Ray Computed
PubMed: 32197519
DOI: 10.3390/medicina56030135 -
Annals of the Royal College of Surgeons... Jan 2019The internal jugular vein is one of the major vessels of the neck. The anatomy of this vessel is considered to be relatively stable. It is an important landmark for head... (Review)
Review
BACKGROUND
The internal jugular vein is one of the major vessels of the neck. The anatomy of this vessel is considered to be relatively stable. It is an important landmark for head and neck surgeons as well as the anaesthetists for both diagnostic and therapeutic purposes.
METHODS
We present two case reports of the posterior tributary of the internal jugular vein and review the surgical literature regarding anatomical variations of the vein.
FINDINGS
A total of 1197 patients from 27 published papers were included in this review. Of these patients, 99.6% had neck surgery and the rest were cadaveric dissections. Anatomical variations of the internal jugular vein were found in 2% of the patient cohort (n = 40). The majority of these patients had either bifurcation or fenestration of the vein. The posterior tributary of the internal jugular vein is unusual and is scarcely reported in the literature (three cases). Knowledge of variations in the anatomy of the internal jugular vein assists surgeons in avoiding complications during neck surgery and preventing morbidity. Two rare cases of posterior branching of the internal jugular vein and experience of other surgeons are demonstrated in this extensive review.
Topics: Anatomic Landmarks; Humans; Jugular Veins; Neck
PubMed: 30322289
DOI: 10.1308/rcsann.2018.0185 -
Journal of Veterinary Cardiology : the... Jun 2022An 11-month-old Staffordshire Bull Terrier was referred with a two-month history of fluctuating unilateral jugular groove swelling, which appeared to enlarge after...
An 11-month-old Staffordshire Bull Terrier was referred with a two-month history of fluctuating unilateral jugular groove swelling, which appeared to enlarge after exercise. There was no history of trauma. Multimodal imaging findings (using transdermal and transesophageal ultrasound and dual phase computed tomography angiography) were consistent with large, saccular, left jugular vein aneurysm, running parallel to the left carotid artery. There did not appear to be any arteriovenous communication present. There were no cardiac abnormalities found on echocardiography. Following surgical excision, histopathological analysis supported the clinical suspicion of a congenital external jugular venous aneurysm.
Topics: Aneurysm; Angiography; Animals; Computed Tomography Angiography; Dog Diseases; Dogs; Jugular Veins; Ultrasonography
PubMed: 35235883
DOI: 10.1016/j.jvc.2022.01.006 -
Postgraduate Medical Journal Aug 1962
Topics: Disease; Humans; Jugular Veins; Neck; Varicose Veins
PubMed: 14451970
DOI: 10.1136/pgmj.38.442.470 -
Physiological Reports Apr 2021Internal jugular flow is reduced in space compared with supine values, which can be associated with internal jugular vein (IJV) thrombosis. The mechanism is unknown but...
Internal jugular flow is reduced in space compared with supine values, which can be associated with internal jugular vein (IJV) thrombosis. The mechanism is unknown but important to understand to prevent potentially serious vein thromboses on long duration flights. We used a novel, microgravity-focused numerical model of the cranial vascular circulation to develop hypotheses for the reduced flow. This model includes the effects of removing hydrostatic gradients and tissue compressive forces - unique effects of weightlessness. The IJV in the model incorporates sensitivity to transmural pressure across the vein, which can dramatically affect resistance and flow in the vein. The model predicts reduced IJV flow in space. Although tissue weight in the neck is reduced in weightlessness, increasing transmural pressure, this is more than offset by the reduction in venous pressure produced by the loss of hydrostatic gradients and tissue pressures throughout the body. This results in a negative transmural pressure and increased IJV resistance. Unlike the IJV, the walls of the vertebral plexus are rigid; transmural pressure does not affect its resistance and so its flow increases in microgravity. This overall result is supported by spaceflight measurements, showing reduced IJV area inflight compared with supine values preflight. Significantly, this hypothesis suggests that interventions that further decrease internal IJV pressure (such as lower body negative pressure), which are not assisted by other drainage mechanisms (e.g. gravity), might lead to stagnant flow or IJV collapse with reduced flow, which could increase rather than decrease the risk of venous thrombosis.
Topics: Computer Simulation; Humans; Jugular Veins; Regional Blood Flow; Supine Position; Weightlessness
PubMed: 33931957
DOI: 10.14814/phy2.14782 -
European Review For Medical and... Jun 2021Timely intervention is the key to the successful management of penetrating injuries to jugular veins; however, the optimal clinical management of these perforations and...
OBJECTIVE
Timely intervention is the key to the successful management of penetrating injuries to jugular veins; however, the optimal clinical management of these perforations and associated risk factors for mortality are not fully established. This study examined the trauma characteristics, vital signs, and in-hospital mortality in penetrating external and internal jugular vein injuries (PEJVI and PIJVI, respectively).
PATIENTS AND METHODS
In this National Trauma Data Bank database study on patients with penetrating jugular vein injuries (PJVIs), details pertaining to demographics, comorbidities, type of injury, mechanism and intent of injury, Injury Severity Score (ISS), vital signs, treatment, and outcome, were abstracted. Multivariate logistic regression was used to identify the risk factors of in-hospital mortality.
RESULTS
A total of 548 patients with PJVIs were included in the final analysis. Patients with PEJVI were more likely to have a self-inflicted injury (p<.001) than those with PIJVI. In both groups, hemorrhage control surgery was performed in almost 60% of the patients within 24 hrs. of the injury (p=.767). Systolic blood pressure (OR 0.99, 95% CI: 0.98-1.00, p=.043), Glasgow coma scale (OR 0.88, 95% CI: 0.81-0.95, p<.001), ISS (OR 1.10, 95% CI: 1.06-1.14, p<.001), and the firearm as a mechanism of injury (OR 2.85, 95% CI: 1.19-6.79, p=.018) were found to be independently associated with the risk of in-hospital mortality.
CONCLUSIONS
The injury severity, hemodynamic stability, comma scale, intent, and mechanism of injury differed significantly in PEJVI and PIJVI; however, the type of PJVI did not have an independent association with in-hospital mortality.
Topics: Adult; Databases, Factual; Female; Glasgow Coma Scale; Hospital Mortality; Humans; Injury Severity Score; Jugular Veins; Logistic Models; Male; Middle Aged; Risk Factors; Wounds and Injuries; Wounds, Penetrating
PubMed: 34227070
DOI: 10.26355/eurrev_202106_26144