| The Relative Position of Paired Valves at Venous Junctions Suggests Their Role in Modulating Three-dimensional Flow Pattern in Veins. | |
| | |
MedLine Citation:
|
PMID: 22824347 Owner: NLM Status: Publisher |
Abstract/OtherAbstract:
|
PURPOSE: The aim of the study is to investigate the relative position of orifices of two valves within the most proximal segments of the great saphenous vein (GSV), and the femoral vein (FV). METHODS: A total of 15 volunteers with no signs or symptoms of venous disease and 13 unaffected limbs of patients with unilateral primary chronic venous disease (CVD) were included. Two most proximal valves of the GSV and the FV were identified. The angle between the two valves, and the distance between the valves were measured. RESULTS: The mean distance between the two valves in the GSV was 3.8 ± 0.4 cm, and in the FV was 4.6 ± 0.3 cm. In one limb, the distance between the FV valves was 1 cm less than GSV valves, and in two limbs the distances were equal. In the remaining 12 limbs available for comparison, the valves in the FV were 1-2 cm further apart compared to the GSV (P = 0.002, paired t-test). All studied pairs of valves were positioned at a minimum 60° angle to each other. The mean angle between the two valves was 84.3 ± 8.4° in the GSV, and 88.3 ± 6.7° in the FV (P = 0.24). The angle between the two valves correlated with the distance between the valves (r = 0.68, P = 0.000005). No significant relations were found between the diameter of the studied vein, and the angle between the two valves. There was no difference in valve orientation between volunteers and unaffected limbs of the patients with CVD. CONCLUSION: When two valves are present in the areas of venous junctions, they consistently positioned at a significant angle to each other. A hypothesis that venous valves at the junctions increase efficiency of venous return by creating a helical flow pattern can be postulated and deserves further investigation. |
| | |
Authors:
|
F Lurie; R L Kistner |
Related Documents
:
|
8708377 - Tuberculous pericarditis in a child. 23529587 - Computational fluid dynamics of blood flow in coil-embolized aneurysms: effect of packi... 3458927 - Aspergillus terreus causing invasive pulmonary aspergillosis with air-crescent sign. 7396707 - Bronchiectasis in pediatric patients resulting from aspirated grass inflorescences. 19838147 - Biodegradable stents and non-biodegradable stents. 22665417 - Abnormalities of vascular structure and function in children with perthes disease. |
Publication Detail:
|
Type: JOURNAL ARTICLE Date: 2012-7-21 |
Journal Detail:
|
Title: European journal of vascular and endovascular surgery : the official journal of the European Society for Vascular Surgery Volume: - ISSN: 1532-2165 ISO Abbreviation: - Publication Date: 2012 Jul |
Date Detail:
|
Created Date: 2012-7-24 Completed Date: - Revised Date: - |
Medline Journal Info:
|
Nlm Unique ID: 9512728 Medline TA: Eur J Vasc Endovasc Surg Country: - |
Other Details:
|
Languages: ENG Pagination: - Citation Subset: - |
Copyright Information:
|
Copyright © 2012 European Society for Vascular Surgery. Published by Elsevier Ltd. All rights reserved. |
Affiliation:
|
Kistner Vein Clinic, and John A. Burns School of Medicine, University of Hawaii, 848 South Beretania Street, Suite 307, Honolulu, HI 96813, USA. |
Export Citation:
|
APA/MLA Format Download EndNote Download BibTex |
| MeSH Terms | |
Descriptor/Qualifier:
|
|
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
Previous Document: Desmoid Tumour of the Thoracic Outlet in a 70-year Old Man Successfully Removed Through Cervico-thor...
Next Document: Effects of statin therapy on abdominal aortic aneurysm growth: a meta-analysis and meta-regression o...