Cardiac, Respiratory and Postural Influences on Venous Return of Internal Jugular and Vertebral Veins

Laganà, Maria Marcella; Rienzo, Marco Di; Rizzo, Francesco; Ricci, Cristian; D’Onofrio, Sara; Forzoni, Leonardo; Cecconi, Pietro

doi:10.1016/j.ultrasmedbio.2017.02.007

Cited by 14 publications

(24 citation statements)

References 32 publications

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“…Patients with unexplained aforementioned clinical features, particularly in the absence of obvious arterial vascular system‐related disorders, should be suspected as likely being at risk of venous issues. It should be noted that the IJV is easily influenced by a number of factors such as respiration, posture, cardiac function, hemodynamic status, and compression from surrounding structures . More importantly, it is arduous to clearly differentiate clinically significant abnormalities form physiological variations considering the high anatomical variability of the IJV.…”

Section: Diagnosismentioning

confidence: 99%

Understanding jugular venous outflow disturbance

Zhou

Ding

et al. 2018

CNS Neurosci Ther

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Extracranial venous abnormalities, especially jugular venous outflow disturbance, were originally viewed as nonpathological phenomena due to a lack of realization and exploration of their feature and clinical significance. The etiology and pathogenesis are still unclear, whereas a couple of causal factors have been conjectured. The clinical presentation of this condition is highly variable, ranging from insidious to symptomatic, such as headaches, dizziness, pulsatile tinnitus, visual impairment, sleep disturbance, and neck discomfort or pain. Standard diagnostic criteria are not available, and current diagnosis largely depends on a combinatory use of imaging modalities. Although few researches have been conducted to gain evidence-based therapeutic approach, several recent advances indicate that intravenous angioplasty in combination with stenting implantation may be a safe and efficient way to restore normal blood circulation, alleviate the discomfort symptoms, and enhance patients' quality of life. In addition, surgical removal of structures that constrain the internal jugular vein may serve as an alternative or adjunctive management when endovascular intervention is not feasible. Notably, discussion on every aspect of this newly recognized disease entity is in the infant stage and efforts with more rigorous designed, randomized controlled studies in attempt to identify the pathophysiology, diagnostic criteria, and effective approaches to its treatment will provide a profound insight into this issue.

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Section: Diagnosismentioning

confidence: 99%

Understanding jugular venous outflow disturbance

Zhou

Ding

et al. 2018

CNS Neurosci Ther

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“…Venous fluctuations with respect to postural changes may put some outflows in trouble. In the supine position, internal jugular veins are open and allow outflows from the cerebral system (also facilitated by breathing) [ 47 ]. In orthostatism, internal jugular veins collapse, and the venous outflow is redirected towards vertebral veins and up until it reaches the superior vena cava [ 47 ].…”

Section: Reviewmentioning

confidence: 99%

“…In the supine position, internal jugular veins are open and allow outflows from the cerebral system (also facilitated by breathing) [ 47 ]. In orthostatism, internal jugular veins collapse, and the venous outflow is redirected towards vertebral veins and up until it reaches the superior vena cava [ 47 ]. The lymphatic movement towards a specific district or tissue can not only mean a postural change, but also an immunological necessity.…”

Section: Reviewmentioning

confidence: 99%

Meaning of the Solid and Liquid Fascia to Reconsider the Model of Biotensegrity

Bordoni

Lintonbon

Bruno³

2018

Cureus

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The definition of fascia includes tissues of mesodermal derivation considered as specialized connective tissues: the blood and lymph. As water shapes rocks, bodily fluids modify the shape and functioning of bodily structures. Bodily fluids are silent witnesses to mechanotransductive information, allowing adaptation and life, transporting biochemical and hormonal signals. While the solid fascial tissue divides, supports, and connects the different parts of the body system, the liquid fascial tissue feeds and transports messages for the solid fascia. This article reconsiders the model of biotensegrity, by revising the definition of solid and liquid fascia, and tries to integrate the fascial continuum with the lymph and blood in a new model, because in the previous model, these two liquid elements were not taken into consideration. The name given to this new model is Rapid Adaptability of Internal Network (RAIN).

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“…(Sisini, et al 2016) This changes in CSA over the cardiac cycle point to a significant measurement variation up to 30%. (Lagana, et al 2017, Sisini, et al 2016) Using a similar technique, the cardiac cycle induced changes in IJV CSA that were more than 50% in amplitude. (Nakamura, et al 2016) Additionally, the study showed similarities of the IJV CSA waveforms and those of the jugular venous pressure.…”

Section: Discussionmentioning

confidence: 99%

Jugular Venous Flow Quantification Using Doppler Sonography

Marr

Jakimovski

Mancini

et al. 2018

Ultrasound in Medicine & Biology

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A consensus on venous flow quantification using echo spectral Doppler sonography is lacking. Doppler sonography data from 83 healthy individuals were examined using manually traced transverse cross-sectional area and diameter-derived cross-sectional area obtained in longitudinal view measurements of the internal jugular vein. Time-averaged velocity over a 4-s interval was obtained in the longitudinal plane using manual tracing of the waveform. Manual and computer-generated blood flow volume calculations were also obtained for the common carotid artery, for accuracy purposes. No differences were detected between semi-automated and manual blood flow volume calculations for the common carotid artery. The manual calculation method resulted in almost twofold larger venous internal jugular vein flow measurements compared with the semi-automated method. Doppler sonography equipment does not provide accurate automated calculation of venous size and blood flow. Until further technological development occurs, manual calculation of venous blood flow is warranted.

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Cardiac, Respiratory and Postural Influences on Venous Return of Internal Jugular and Vertebral Veins

Cited by 14 publications

References 32 publications

Understanding jugular venous outflow disturbance

Understanding jugular venous outflow disturbance

Meaning of the Solid and Liquid Fascia to Reconsider the Model of Biotensegrity

Jugular Venous Flow Quantification Using Doppler Sonography

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