ObjectivesThe aim of this study was to formulate an ultrasonic diagnostic criterion for stenosis in the J3 segment of internal jugular vein (IJV) and probe into the effects of stenosis in the J3 segment on intracranial pressure (ICP) and the cerebral drainage pattern.MethodsParticipants who exhibited narrowing in the J3 segment of IJV on neuroimaging and reported symptoms correlated with IJV stenosis (IJVS) were enlisted from Xuanwu Hospital. Clinical data were retrospectively amassed.ResultsA total of 163 subjects including 57 IJVS subjects and 106 control subjects were recruited. We unearthed an inverse relationship between the pressure gradient and the flow velocity. Flow velocity at or below 27.5 cm/s coincided with pressure gradient values of 4 mmHg or greater. There is no significant correlation between IJVS and ICP. Additionally, a linear correlation was identified between the bilateral flow volume in the J3 segment and ICP. Values exceeding 425 mL/min were indicative of intracranial hypertension. There was an increase in diameter, flow volume and flow velocity in the bilateral vertebral veins in participants with IJVS.ConclusionsThe J3 segment of IJV displays right dominance. Stenosis can be deduced when the flow velocity in the J3 segment is at or below 27.5 cm/s. Stenosis in the J3 segment yielded a diminished outflow in the IJV and an augmented outflow in the vertebral veins. When bilateral flow volume in the J3 segment exceeds 425 mL/min, it denotes intracranial hypertension.
Download full-text PDF |
Source |
|---|---|
| http://dx.doi.org/10.1177/02683555251326031 | DOI Listing |
Publication Analysis
Top Keywords
Similar Publications
The correlation between muscle loss and the severity of vascular stenosis in elderly patients with peripheral artery disease: a retrospective analysis utilizing computed tomography.
Aging Clin Exp Res
March 2025
Department of Geriatrics, Beijing Hospital, National Center of Gerontology, Institute of Geriatric Medicine, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing, 100005, China.
Background: Peripheral artery disease (PAD) is a globally prevalent atherosclerotic disease associated with an increased risk of cardiovascular and cerebrovascular diseases and a poor prognosis. Skeletal muscle loss (sarcopenia) is particularly common in patients with PAD and is closely associated with poor prognosis.
Aims: The aim of this study was to evaluate the area, density and fat infiltration of skeletal muscle in patients with PAD by CT, and to analyze their relationship with the degree of vascular stenosis.
Deep learning based automatic quantification of aortic valve calcification on contrast enhanced coronary CT angiography.
Sci Rep
March 2025
Department of Radiology, Seoul National University Hospital, 101 Daehak-ro, Jongno-gu, Seoul, 03080, Korea.
Quantifying aortic valve calcification is critical for assessing the severity of aortic stenosis, predicting cardiovascular risk, and guiding treatment decisions. This study evaluated the feasibility of a deep learning-based automatic quantification of aortic valve calcification using contrast-enhanced coronary CT angiography and compared the results with manual calcium scoring. A retrospective analysis of 177 patients undergoing aortic stenosis evaluation was conducted, divided into a development set (n = 97) and an internal validation set (n = 80).
View Article and Find Full Text PDFA hemodynamic screening tool for symptomatic internal jugular vein stenosis in J3 segment.
Phlebology
March 2025
Department of Neurology, Xuanwu Hospital, Capital Medical University, Beijing, China.
ObjectivesThe aim of this study was to formulate an ultrasonic diagnostic criterion for stenosis in the J3 segment of internal jugular vein (IJV) and probe into the effects of stenosis in the J3 segment on intracranial pressure (ICP) and the cerebral drainage pattern.MethodsParticipants who exhibited narrowing in the J3 segment of IJV on neuroimaging and reported symptoms correlated with IJV stenosis (IJVS) were enlisted from Xuanwu Hospital. Clinical data were retrospectively amassed.
View Article and Find Full Text PDFObjective: L5/S1 segment is one of the most common lumbar degenerative segments with high clinical failure rate. When the clinically responsible segment consists of one or more segments including L4/L5 segment, whether to merge the severely degraded L5/S1 segment together is a common problem plaguing clinicians. Therefore, the purpose of this study was to explore the risk factors for preoperative adjacent segment degeneration L5/S1 segment occuring Postoperative adjacent segment disease(ASDis), analyze the correlation between the high risk factors and the occurrence of adjacent segment disease, clarify the preventive measures and direction, and provide references for clinical selection of personalized treatment.
View Article and Find Full Text PDFPhysician Modified Endografts Achieve Similar Patient Survival and Target Visceral Vessel Related Outcomes to Factory Made Fenestrated Endografts in Treating Complex Aortic Pathology.
Ann Vasc Surg
March 2025
Division of Vascular Surgery and Endovascular Therapy, Loyola University Health System, Loyola University Chicago Stritch School of Medicine. Electronic address:
Objective: The purpose of this study was to conduct a real-world comparison of visceral stent branch related outcomes and patient survival in physician modified endografts (PMEG) versus factory made fenestrated endografts (FMFE).
Methods: After exclusions, 544 PMEG and 1638 FMFE were identified in the Vascular Quality Initiative between 2014 and 2022. The four primary outcomes analyzed with Kaplan Meier (KM) were freedom from mortality, new onset dialysis, visceral ischemia, and visceral stent graft reintervention in follow up.
Want AI Summaries of new PubMed Abstracts delivered to your In-box?
Enter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!